{ "type": "Domain", "indicator": "pemisar.org", "general": { "sections": [ "general", "geo", "url_list", "passive_dns", "malware", "whois", "http_scans" ], "whois": "http://whois.domaintools.com/pemisar.org", "alexa": "http://www.alexa.com/siteinfo/pemisar.org", "indicator": "pemisar.org", "type": "domain", "type_title": "Domain", "validation": [], "base_indicator": { "id": 4215004597, "indicator": "pemisar.org", "type": "domain", "title": "", "description": "", "content": "", "access_type": "public", "access_reason": "" }, "pulse_info": { "count": 7, "pulses": [ { "id": "69f5de64ecc6f91d2d08e667", "name": "Domains of research", "description": "[The full text of the certificate that led to the signing of a new SSL certificate, signed by Comcast Cable Communications, has been published on the website of www.comcastbusiness.net, the company's parent company]", "modified": "2026-06-01T17:28:42.749000", "created": "2026-05-02T11:22:12.429000", "tags": [ "comcast cable", "communications", "llc united", "statesunited", "boston", "ullage height", "water temp", "common name", "i20100 apr", "c127181 mobil", "encrypt", "supporte", "height water", "temp", "marshfield ssl", "certificate", "issued", "charter", "diesel" ], "references": [], "public": 1, "adversary": "", "targeted_countries": [], "malware_families": [], "attack_ids": [], "industries": [], "TLP": "green", "cloned_from": null, "export_count": 1, "upvotes_count": 0, "downvotes_count": 0, "votes_count": 0, "locked": false, "pulse_source": "web", "validator_count": 0, "comment_count": 0, "follower_count": 0, "vote": 0, "author": { "username": "msudosos", "id": "381696", "avatar_url": "https://otx.alienvault.com/assets/images/default-avatar.png", "is_subscribed": false, "is_following": false }, "indicator_type_counts": { "URL": 539, "domain": 452, "hostname": 701, "FileHash-MD5": 39, "FileHash-SHA256": 117, "FileHash-SHA1": 110, "email": 6, "CVE": 3, "URI": 2, "IPv4": 5 }, "indicator_count": 1974, "is_author": false, "is_subscribing": null, "subscriber_count": 67, "modified_text": "2 hours ago ", "is_modified": true, "groups": [], "in_group": false, "threat_hunter_scannable": true, "threat_hunter_has_agents": 1, "related_indicator_type": "domain", "related_indicator_is_active": 1 }, { "id": "699969651d3b082f6b583fae", "name": "PDFKIT.net", "description": "Data Points. Search tall components CVE's for more info on this.", "modified": "2026-05-15T17:51:25.327000", "created": "2026-02-21T08:14:29.258000", "tags": [], "references": [], "public": 1, "adversary": "", "targeted_countries": [], "malware_families": [], "attack_ids": [], "industries": [], "TLP": "green", "cloned_from": null, "export_count": 3, "upvotes_count": 0, "downvotes_count": 0, "votes_count": 0, "locked": false, "pulse_source": "web", "validator_count": 0, "comment_count": 0, "follower_count": 0, "vote": 0, "author": { "username": "msudosos", "id": "381696", "avatar_url": "https://otx.alienvault.com/assets/images/default-avatar.png", "is_subscribed": false, "is_following": false }, "indicator_type_counts": { "domain": 370, "hostname": 444, "FileHash-SHA1": 1292, "FileHash-SHA256": 4069, "URL": 192, "FileHash-MD5": 1255, "email": 16, "CVE": 58 }, "indicator_count": 7696, "is_author": false, "is_subscribing": null, "subscriber_count": 69, "modified_text": "17 days ago ", "is_modified": true, "groups": [], "in_group": false, "threat_hunter_scannable": true, "threat_hunter_has_agents": 1, "related_indicator_type": "domain", "related_indicator_is_active": 1 }, { "id": "6992bae83a5988dff8311490", "name": "Distributed Credential Exhaustion & C2 Orchestration via Golang-Based StealthWorker (ELF.Agent-VW)", "description": "Researcher credit: msudosos, level blue platform----\nThis artifact represents a high-integrity StealthWorker (GoBrut) botnet agent, architected as a statically linked, stripped 32-bit ELF binary to ensure cross-platform environmental independence. The sample utilizes XOR 0x20-encoded JavaScript payloads and String.fromCharCode obfuscation to mask its internal logic and bypass heuristic-based memory scanners. [User Notes] Its operational core is a multi-threaded service bruter targeting SSH, MySQL, and CMS backends, leveraging a massive infrastructure of 1,834 domains and 797 unique IPv4 endpoints for decentralized Command & Control (C2). Network telemetry confirms the use of ICMP and HTTP-based beaconing, indicating a sophisticated retry logic designed to maintain persistence across diverse network topologies. With a malicious file score of 10, this binary serves as a primary vector for large-scale credential harvesting and the subsequent integration of Linux infrastructure into global botnet clusters.", "modified": "2026-04-24T13:20:48.450000", "created": "2026-02-16T06:36:24.788000", "tags": [ "Obfuscation: XOR-based String Encryption (0x20)", "T1110.001 (Brute Force: Password Guessing)", "Primary Hash (SHA256): cd3989830da99a69380901769fd78902efb3cd8ba", "MD5 Hash: f8add7e7161460ea2b1970cf4ca535bf", "#PotentialUS-Origin_FalseFlag_Obfuscation" ], "references": [ "Primary Hash (SHA256): cd3989830da99a69380901769fd78902efb3cd8ba5c9390e94bd4333b7fad186", "Obfuscation: XOR-based String Encryption (0x20)", "T1110.001 (Brute Force: Password Guessing)", "This ELF 32-bit LSB artifact is a sophisticated GoBrut/StealthWorker agent, compiled via Golang 1.10 and stripped to obfuscate its high-velocity service-bruting logic. VirusTotal confirms a critical threat profile with 44/65 security vendors flagging the file, which leverages a unique Go BuildID (nGYES3pajdOm...) and a Telfhash (t1f303a0...) for architectural fingerprinting. The binary orchestrates decentralized Command and Control (C2) through an expansive infrastructure of 797 unique IPs and 1,834 domains", "Pivot-Ready Indicators (IOCs) Go BuildID: nGYES3pajdOmKy1i6Ghh/KO9ydOtZpXtoKtB0KHE-/iisNoniHgTbj_cV6M-uk/XmMYzkBiZs8NXMRZYTiT Telfhash: t1f303a0b3055d54e8b7f08907c7af7624cef6e0f726d078f169e278d09a72c826626874 Imphash: 9698f46495ce9401c8bcaf9a2afe1598 Vhash: 1e53f1a1b59ecb93f821c74b25d81e9f", "Researcher msudosos posits a strategic exploitation of Root Certificate Validation Failures, where the adversary leverages an expired trust chain to bypass heuristic security filters and establish persistence.", "his technique allows the GoBrut/StealthWorker agent to circumvent automated revocation checks, enabling its decentralized C2 infrastructure to recruit Linux hosts via high-velocity credential exhaustion.", "The local environment exhibits advanced telemetry suppression within specialized skim memory regions, effectively neutralizing standard DMARC validation and Microsoft-integrated defensive protocols.", "By maintaining a hollowed root posture, the sample facilitates persistent, low-signal synchronization with external cloud infrastructure while bypassing traditional heuristic trust-chain verification.", "The domain prioritywirreles.com (registered via NAMECHEAP INC) shows a 4/93 detection ratio, confirming it is a live but \"low-noise\" C2 node used to avoid broad-spectrum blacklisting", "", "The environment leverages prioritywirreles.com as a high-fidelity DGA-derived C2 node, utilizing its historical resolution to Russian-hosted IP space (194.61.24.231) to maintain persistent Stealthworker botnet synchronization.", "By operating through WhoisGuard-protected infrastructure and exploiting XOR 0x20 obfuscation, the adversary effectively suppresses telemetry into skim space, successfully bypassing DMARC and Microsoft-integrated trust-chain validation.", "The pivot from cd398983... to this domain confirms a multi-year campaign (2019\u20132023) utilizing Namecheap-registered infrastructure to orchestrate wide-scale T1110.001 brute-force operations while bypassing standard PKI expiration checks.", "LBresearcher: msudosos notes: The campaign's use of T1110.001 (Password Guessing) is specifically tuned to exhaust credentials across SSH, MySQL, and CMS backends, effectively recruiting server infrastructure into a global \"zombie\" network.", "LBresearcher: msudosos notes: The threat actor maintains operational longevity by rotating through WhoisGuard-protected nodes like prioritywirreles.com, which historically resolved to Russian-hosted IP space (194.61.24.231) to obfuscate its origin.", "LBresearcher: msudosos notes: By exploiting Root Certificate Validation Failures, the StealthWorker (GoBrut) agent ensures that its 32-bit ELF binaries bypass the automated reputation checks enforced by major cloud providers.", "Monitor DGA Shifts: Track new domains registered through NAMECHEAP INC using the current WhoisGuard patterns to identify the next cluster before it goes active. Analyze Telfhash Clusters: Use the Telfhash (t1f303a0...) to pivot and find if the adversary has updated to 64-bit ELF or ARM architectures. Harden DMARC: Ensure your environment moves from \"p=none\" to \"p=reject\" to mitigate the internal spoofing loops exploited by this botnet's telemetry suppression.", "Persistent C2 Orchestration: This ELF:Agent-VW variant serves as a critical GoBrut node, utilizing XOR 0x20 obfuscation and ICMP/HTTP beaconing to maintain a persistent link across 1,834 domains and 797 unique IPs", "Researcher msudosos: This activity appears to facilitate a preliminary reconnaissance phase, possibly utilizing system commands to query /proc/cpuinfo and /proc/version for architectural profiling purposes.", "Researcher msudosos suggests the VirusTotal (Tencent HABO) behavior report may indicate a potential execution path from volatile storage at /tmp/EB93A6/996E.elf.", "Msudosos Regional Notes: While historical pivots show Russian-hosted nodes, the current dual-origin telemetry\u2014dominated by 181 United States-based endpoints\u2014strongly suggests a domestic-aligned adversary leveraging global 'grey space' to obfuscate its operational core. This massive US-centric footprint (exceeding all other regions combined) reinforces the theory of a false-flag orchestration designed to divert attribution toward foreign infrastructure while abusing legitimate Western-hosted trust chains.", "WHOIS data anchors administrative and technical operations for prioritywirreles.com in Los Angeles, CA (90064) via Namecheap infrastructure. Following its 2020 expiration, the domain has transitioned into redemptionPeriod/pendingDelete status, signaling the formal decommissioning of this C2 asset." ], "public": 1, "adversary": "StealthWorker/GoBrut (The adversary demonstrates advanced telemetry suppression within specialized s", "targeted_countries": [], "malware_families": [ { "id": "Malware Family: StealthWorker / GoBrut", "display_name": "Malware Family: StealthWorker / GoBrut", "target": "/malware/Malware Family: StealthWorker / GoBrut" }, { "id": "MD5 Hash: f8add7e7161460ea2b1970cf4ca535bf", "display_name": "MD5 Hash: f8add7e7161460ea2b1970cf4ca535bf", "target": null } ], "attack_ids": [ { "id": "T1001", "name": "Data Obfuscation", "display_name": "T1001 - Data Obfuscation" } ], "industries": [], "TLP": "green", "cloned_from": null, "export_count": 5, "upvotes_count": 0, "downvotes_count": 0, "votes_count": 0, "locked": false, "pulse_source": "web", "validator_count": 0, "comment_count": 0, "follower_count": 0, "vote": 0, "author": { "username": "msudosos", "id": "381696", "avatar_url": "https://otx.alienvault.com/assets/images/default-avatar.png", "is_subscribed": false, "is_following": false }, "indicator_type_counts": { "FileHash-MD5": 2166, "FileHash-SHA1": 2067, "FileHash-SHA256": 3371, "domain": 13295, "URL": 6860, "email": 272, "hostname": 4705, "SSLCertFingerprint": 268, "CVE": 108, "CIDR": 6 }, "indicator_count": 33118, "is_author": false, "is_subscribing": null, "subscriber_count": 82, "modified_text": "38 days ago ", "is_modified": true, "groups": [], "in_group": false, "threat_hunter_scannable": true, "threat_hunter_has_agents": 1, "related_indicator_type": "domain", "related_indicator_is_active": 1 }, { "id": "699c3b796fcaed878ca94c5c", "name": "https://m.vzw.com/wIvzrd8", "description": "the wizard", "modified": "2026-04-18T05:30:18.690000", "created": "2026-02-23T11:35:21.673000", "tags": [], "references": [], "public": 1, "adversary": "", "targeted_countries": [], "malware_families": [], "attack_ids": [], "industries": [], "TLP": "green", "cloned_from": null, "export_count": 1, "upvotes_count": 0, "downvotes_count": 0, "votes_count": 0, "locked": false, "pulse_source": "web", "validator_count": 0, "comment_count": 0, "follower_count": 0, "vote": 0, "author": { "username": "msudosos", "id": "381696", "avatar_url": "https://otx.alienvault.com/assets/images/default-avatar.png", "is_subscribed": false, "is_following": false }, "indicator_type_counts": { "FileHash-SHA256": 1818, "hostname": 575, "URL": 200, "FileHash-SHA1": 450, "CIDR": 11, "domain": 887, "email": 7, "FileHash-MD5": 402, "CVE": 21 }, "indicator_count": 4371, "is_author": false, "is_subscribing": null, "subscriber_count": 66, "modified_text": "44 days ago ", "is_modified": true, "groups": [], "in_group": false, "threat_hunter_scannable": true, "threat_hunter_has_agents": 1, "related_indicator_type": "domain", "related_indicator_is_active": 1 }, { "id": "699e98024aa93957a620e117", "name": "Cellbrite Domain Irregularities", "description": "The domain displays a \"hardened\" posture typical of high-value targets, though some indicators suggest potential misconfigurations or recent shifts in ownership/management. The domain utilizes multiple clientProhibited flags (Transfer, Update, Delete). This is a \"Registry Lock\" equivalent, ensuring no changes can be made without out-of-band authentication.\n\nExpiration Discrepancy: * Domain Expiration: Feb 24, 2026. (yesterday)\n\nSSL Certificate Validity: April 2026.\nresearcher observations: It is highly irregular for a certificate to outlast the domain registration. This often points to a \"just-in-time\" renewal process or a domain that was recently recovered. Furthermore, the reliance on ParkLogic nameservers indicates a sophisticated approach to traffic routing, likely for load balancing or threat mitigation. Delegation signed: No - Expiration Yesterday (entered 1:32est 2/25/26)", "modified": "2026-04-01T00:44:45.494000", "created": "2026-02-25T06:34:42.619000", "tags": [], "references": [], "public": 1, "adversary": "", "targeted_countries": [], "malware_families": [], "attack_ids": [], "industries": [], "TLP": "green", "cloned_from": null, "export_count": 0, "upvotes_count": 0, "downvotes_count": 0, "votes_count": 0, "locked": false, "pulse_source": "web", "validator_count": 0, "comment_count": 1, "follower_count": 0, "vote": 0, "author": { "username": "msudosos", "id": "381696", "avatar_url": "https://otx.alienvault.com/assets/images/default-avatar.png", "is_subscribed": false, "is_following": false }, "indicator_type_counts": { "domain": 431, "hostname": 1625, "FileHash-SHA1": 661, "FileHash-SHA256": 4617, "URL": 359, "FileHash-MD5": 635, "CVE": 43, "email": 22, "CIDR": 6 }, "indicator_count": 8399, "is_author": false, "is_subscribing": null, "subscriber_count": 67, "modified_text": "61 days ago ", "is_modified": true, "groups": [], "in_group": false, "threat_hunter_scannable": true, "threat_hunter_has_agents": 1, "related_indicator_type": "domain", "related_indicator_is_active": 1 }, { "id": "6988faa4f668aeeed6f86da8", "name": "zero trust", "description": "researcher credit: msudoSOS : CLBCatQ.DLL\tThe malware is hijacking your COM+ Class Catalog to hide as a System Service.\nCoMarshalInterface\tYour identity is being \"packaged\" and sent via the LTE Trial to the '' Edge.\npid 2356 / 2812\tThese are the active processes currently communicating with the 49.12.22.106 C2 server.", "modified": "2026-03-27T09:05:26.285000", "created": "2026-02-08T21:05:37.829000", "tags": [], "references": [], "public": 1, "adversary": "", "targeted_countries": [], "malware_families": [ { "id": "ALF:HeraklezEval:Trojan:Win32/C2Lop", "display_name": "ALF:HeraklezEval:Trojan:Win32/C2Lop", "target": null }, { "id": "#LowFi:HSTR:PyInstaller_Packaged_Script", "display_name": "#LowFi:HSTR:PyInstaller_Packaged_Script", "target": null }, { "id": "#Exploit:Win32/BlofeldsCat", "display_name": "#Exploit:Win32/BlofeldsCat", "target": "/malware/#Exploit:Win32/BlofeldsCat" }, { "id": "TEL:Exploit:HTML/PSWebkit", "display_name": "TEL:Exploit:HTML/PSWebkit", "target": null } ], "attack_ids": [], "industries": [], "TLP": "green", "cloned_from": null, "export_count": 0, "upvotes_count": 0, "downvotes_count": 0, "votes_count": 0, "locked": false, "pulse_source": "web", "validator_count": 0, "comment_count": 0, "follower_count": 0, "vote": 0, "author": { "username": "msudosos", "id": "381696", "avatar_url": "https://otx.alienvault.com/assets/images/default-avatar.png", "is_subscribed": false, "is_following": false }, "indicator_type_counts": { "domain": 394, "hostname": 250, "CVE": 112, "URL": 190, "email": 25, "JA3": 1, "FileHash-MD5": 191, "FileHash-SHA1": 214, "FileHash-SHA256": 607 }, "indicator_count": 1984, "is_author": false, "is_subscribing": null, "subscriber_count": 80, "modified_text": "66 days ago ", "is_modified": true, "groups": [], "in_group": false, "threat_hunter_scannable": true, "threat_hunter_has_agents": 1, "related_indicator_type": "domain", "related_indicator_is_active": 1 }, { "id": "698904c316bc7710b967d01d", "name": "Rare Tier 1 Persistence - Critical \"Patched\", Non Patched Vulnerabilities Remain bypassing Lockdown Mode", "description": "Researcher Note (Feb 08, 2026):\nThis artifact represents a sophisticated Cross-Protocol Mesh. Observations confirm that the Cymt/Nemucod wrapper is being utilized as a delivery vehicle for a Firmware-resident ELF binary (Mirai variant).\nThe persistence is notable for its ability to survive Full DFU Restores and Faraday-isolated states, likely due to JTAG-level interaction with the Power Management IC (Chip 4799). This is not a standard opportunistic infection; it is a targeted provisioning event leveraging IDMSA (Identity Management) bridges and Verizon/Akamai Edge infrastructure.\nThe integration with CalendarKit and Maps for geofenced execution suggests a highly coordinated surveillance objective. Forensic analysts should pay specific attention to the sizeofrawdata_antidbg anomalies, which indicate a focus on bypassing Apple Lockdown Mode and Secure Enclave. \nresearcher credit: msudoSOS", "modified": "2026-03-27T09:05:26.285000", "created": "2026-02-08T21:48:49.147000", "tags": [ "#supportsitewebsiteabuse #rootcertificatefailure #cryptographicf" ], "references": [], "public": 1, "adversary": "", "targeted_countries": [], "malware_families": [], "attack_ids": [], "industries": [], "TLP": "green", "cloned_from": null, "export_count": 2, "upvotes_count": 0, "downvotes_count": 0, "votes_count": 0, "locked": false, "pulse_source": "web", "validator_count": 0, "comment_count": 0, "follower_count": 0, "vote": 0, "author": { "username": "msudosos", "id": "381696", "avatar_url": "https://otx.alienvault.com/assets/images/default-avatar.png", "is_subscribed": false, "is_following": false }, "indicator_type_counts": { "hostname": 909, "URL": 1779, "CVE": 126, "domain": 659, "email": 23, "JA3": 1, "FileHash-MD5": 230, "FileHash-SHA1": 227, "FileHash-SHA256": 934, "CIDR": 13 }, "indicator_count": 4901, "is_author": false, "is_subscribing": null, "subscriber_count": 74, "modified_text": "66 days ago ", "is_modified": true, "groups": [], "in_group": false, "threat_hunter_scannable": true, "threat_hunter_has_agents": 1, "related_indicator_type": "domain", "related_indicator_is_active": 1 } ], "references": [ "", "Persistent C2 Orchestration: This ELF:Agent-VW variant serves as a critical GoBrut node, utilizing XOR 0x20 obfuscation and ICMP/HTTP beaconing to maintain a persistent link across 1,834 domains and 797 unique IPs", "By operating through WhoisGuard-protected infrastructure and exploiting XOR 0x20 obfuscation, the adversary effectively suppresses telemetry into skim space, successfully bypassing DMARC and Microsoft-integrated trust-chain validation.", "Msudosos Regional Notes: While historical pivots show Russian-hosted nodes, the current dual-origin telemetry\u2014dominated by 181 United States-based endpoints\u2014strongly suggests a domestic-aligned adversary leveraging global 'grey space' to obfuscate its operational core. This massive US-centric footprint (exceeding all other regions combined) reinforces the theory of a false-flag orchestration designed to divert attribution toward foreign infrastructure while abusing legitimate Western-hosted trust chains.", "WHOIS data anchors administrative and technical operations for prioritywirreles.com in Los Angeles, CA (90064) via Namecheap infrastructure. Following its 2020 expiration, the domain has transitioned into redemptionPeriod/pendingDelete status, signaling the formal decommissioning of this C2 asset.", "Researcher msudosos: This activity appears to facilitate a preliminary reconnaissance phase, possibly utilizing system commands to query /proc/cpuinfo and /proc/version for architectural profiling purposes.", "Researcher msudosos posits a strategic exploitation of Root Certificate Validation Failures, where the adversary leverages an expired trust chain to bypass heuristic security filters and establish persistence.", "LBresearcher: msudosos notes: By exploiting Root Certificate Validation Failures, the StealthWorker (GoBrut) agent ensures that its 32-bit ELF binaries bypass the automated reputation checks enforced by major cloud providers.", "The local environment exhibits advanced telemetry suppression within specialized skim memory regions, effectively neutralizing standard DMARC validation and Microsoft-integrated defensive protocols.", "The pivot from cd398983... to this domain confirms a multi-year campaign (2019\u20132023) utilizing Namecheap-registered infrastructure to orchestrate wide-scale T1110.001 brute-force operations while bypassing standard PKI expiration checks.", "LBresearcher: msudosos notes: The threat actor maintains operational longevity by rotating through WhoisGuard-protected nodes like prioritywirreles.com, which historically resolved to Russian-hosted IP space (194.61.24.231) to obfuscate its origin.", "Monitor DGA Shifts: Track new domains registered through NAMECHEAP INC using the current WhoisGuard patterns to identify the next cluster before it goes active. Analyze Telfhash Clusters: Use the Telfhash (t1f303a0...) to pivot and find if the adversary has updated to 64-bit ELF or ARM architectures. Harden DMARC: Ensure your environment moves from \"p=none\" to \"p=reject\" to mitigate the internal spoofing loops exploited by this botnet's telemetry suppression.", "LBresearcher: msudosos notes: The campaign's use of T1110.001 (Password Guessing) is specifically tuned to exhaust credentials across SSH, MySQL, and CMS backends, effectively recruiting server infrastructure into a global \"zombie\" network.", "Primary Hash (SHA256): cd3989830da99a69380901769fd78902efb3cd8ba5c9390e94bd4333b7fad186", "Obfuscation: XOR-based String Encryption (0x20)", "Pivot-Ready Indicators (IOCs) Go BuildID: nGYES3pajdOmKy1i6Ghh/KO9ydOtZpXtoKtB0KHE-/iisNoniHgTbj_cV6M-uk/XmMYzkBiZs8NXMRZYTiT Telfhash: t1f303a0b3055d54e8b7f08907c7af7624cef6e0f726d078f169e278d09a72c826626874 Imphash: 9698f46495ce9401c8bcaf9a2afe1598 Vhash: 1e53f1a1b59ecb93f821c74b25d81e9f", "The environment leverages prioritywirreles.com as a high-fidelity DGA-derived C2 node, utilizing its historical resolution to Russian-hosted IP space (194.61.24.231) to maintain persistent Stealthworker botnet synchronization.", "The domain prioritywirreles.com (registered via NAMECHEAP INC) shows a 4/93 detection ratio, confirming it is a live but \"low-noise\" C2 node used to avoid broad-spectrum blacklisting", "T1110.001 (Brute Force: Password Guessing)", "his technique allows the GoBrut/StealthWorker agent to circumvent automated revocation checks, enabling its decentralized C2 infrastructure to recruit Linux hosts via high-velocity credential exhaustion.", "By maintaining a hollowed root posture, the sample facilitates persistent, low-signal synchronization with external cloud infrastructure while bypassing traditional heuristic trust-chain verification.", "Researcher msudosos suggests the VirusTotal (Tencent HABO) behavior report may indicate a potential execution path from volatile storage at /tmp/EB93A6/996E.elf.", "This ELF 32-bit LSB artifact is a sophisticated GoBrut/StealthWorker agent, compiled via Golang 1.10 and stripped to obfuscate its high-velocity service-bruting logic. VirusTotal confirms a critical threat profile with 44/65 security vendors flagging the file, which leverages a unique Go BuildID (nGYES3pajdOm...) and a Telfhash (t1f303a0...) for architectural fingerprinting. The binary orchestrates decentralized Command and Control (C2) through an expansive infrastructure of 797 unique IPs and 1,834 domains" ], "related": { "alienvault": { "adversary": [], "malware_families": [], "industries": [] }, "other": { "adversary": [ "StealthWorker/GoBrut (The adversary demonstrates advanced telemetry suppression within specialized s" ], "malware_families": [ "Md5 hash: f8add7e7161460ea2b1970cf4ca535bf", "Malware family: stealthworker / gobrut", "#exploit:win32/blofeldscat", "Tel:exploit:html/pswebkit", "Alf:heraklezeval:trojan:win32/c2lop", "#lowfi:hstr:pyinstaller_packaged_script" ], "industries": [] } } }, "false_positive": [] }, "geo": {}, "geo_ipapicom": {}, "pulse_count": 7, "pulses": [ { "id": "69f5de64ecc6f91d2d08e667", "name": "Domains of research", "description": "[The full text of the certificate that led to the signing of a new SSL certificate, signed by Comcast Cable Communications, has been published on the website of www.comcastbusiness.net, the company's parent company]", "modified": "2026-06-01T17:28:42.749000", "created": "2026-05-02T11:22:12.429000", "tags": [ "comcast cable", "communications", "llc united", "statesunited", "boston", "ullage height", "water temp", "common name", "i20100 apr", "c127181 mobil", "encrypt", "supporte", "height water", "temp", "marshfield ssl", "certificate", "issued", "charter", "diesel" ], "references": [], "public": 1, "adversary": "", "targeted_countries": [], "malware_families": [], "attack_ids": [], "industries": [], "TLP": "green", "cloned_from": null, "export_count": 1, "upvotes_count": 0, "downvotes_count": 0, "votes_count": 0, "locked": false, "pulse_source": "web", "validator_count": 0, "comment_count": 0, "follower_count": 0, "vote": 0, "author": { "username": "msudosos", "id": "381696", "avatar_url": "https://otx.alienvault.com/assets/images/default-avatar.png", "is_subscribed": false, "is_following": false }, "indicator_type_counts": { "URL": 539, "domain": 452, "hostname": 701, "FileHash-MD5": 39, "FileHash-SHA256": 117, "FileHash-SHA1": 110, "email": 6, "CVE": 3, "URI": 2, "IPv4": 5 }, "indicator_count": 1974, "is_author": false, "is_subscribing": null, "subscriber_count": 67, "modified_text": "2 hours ago ", "is_modified": true, "groups": [], "in_group": false, "threat_hunter_scannable": true, "threat_hunter_has_agents": 1, "related_indicator_type": "domain", "related_indicator_is_active": 1 }, { "id": "699969651d3b082f6b583fae", "name": "PDFKIT.net", "description": "Data Points. Search tall components CVE's for more info on this.", "modified": "2026-05-15T17:51:25.327000", "created": "2026-02-21T08:14:29.258000", "tags": [], "references": [], "public": 1, "adversary": "", "targeted_countries": [], "malware_families": [], "attack_ids": [], "industries": [], "TLP": "green", "cloned_from": null, "export_count": 3, "upvotes_count": 0, "downvotes_count": 0, "votes_count": 0, "locked": false, "pulse_source": "web", "validator_count": 0, "comment_count": 0, "follower_count": 0, "vote": 0, "author": { "username": "msudosos", "id": "381696", "avatar_url": "https://otx.alienvault.com/assets/images/default-avatar.png", "is_subscribed": false, "is_following": false }, "indicator_type_counts": { "domain": 370, "hostname": 444, "FileHash-SHA1": 1292, "FileHash-SHA256": 4069, "URL": 192, "FileHash-MD5": 1255, "email": 16, "CVE": 58 }, "indicator_count": 7696, "is_author": false, "is_subscribing": null, "subscriber_count": 69, "modified_text": "17 days ago ", "is_modified": true, "groups": [], "in_group": false, "threat_hunter_scannable": true, "threat_hunter_has_agents": 1, "related_indicator_type": "domain", "related_indicator_is_active": 1 }, { "id": "6992bae83a5988dff8311490", "name": "Distributed Credential Exhaustion & C2 Orchestration via Golang-Based StealthWorker (ELF.Agent-VW)", "description": "Researcher credit: msudosos, level blue platform----\nThis artifact represents a high-integrity StealthWorker (GoBrut) botnet agent, architected as a statically linked, stripped 32-bit ELF binary to ensure cross-platform environmental independence. The sample utilizes XOR 0x20-encoded JavaScript payloads and String.fromCharCode obfuscation to mask its internal logic and bypass heuristic-based memory scanners. [User Notes] Its operational core is a multi-threaded service bruter targeting SSH, MySQL, and CMS backends, leveraging a massive infrastructure of 1,834 domains and 797 unique IPv4 endpoints for decentralized Command & Control (C2). Network telemetry confirms the use of ICMP and HTTP-based beaconing, indicating a sophisticated retry logic designed to maintain persistence across diverse network topologies. With a malicious file score of 10, this binary serves as a primary vector for large-scale credential harvesting and the subsequent integration of Linux infrastructure into global botnet clusters.", "modified": "2026-04-24T13:20:48.450000", "created": "2026-02-16T06:36:24.788000", "tags": [ "Obfuscation: XOR-based String Encryption (0x20)", "T1110.001 (Brute Force: Password Guessing)", "Primary Hash (SHA256): cd3989830da99a69380901769fd78902efb3cd8ba", "MD5 Hash: f8add7e7161460ea2b1970cf4ca535bf", "#PotentialUS-Origin_FalseFlag_Obfuscation" ], "references": [ "Primary Hash (SHA256): cd3989830da99a69380901769fd78902efb3cd8ba5c9390e94bd4333b7fad186", "Obfuscation: XOR-based String Encryption (0x20)", "T1110.001 (Brute Force: Password Guessing)", "This ELF 32-bit LSB artifact is a sophisticated GoBrut/StealthWorker agent, compiled via Golang 1.10 and stripped to obfuscate its high-velocity service-bruting logic. VirusTotal confirms a critical threat profile with 44/65 security vendors flagging the file, which leverages a unique Go BuildID (nGYES3pajdOm...) and a Telfhash (t1f303a0...) for architectural fingerprinting. The binary orchestrates decentralized Command and Control (C2) through an expansive infrastructure of 797 unique IPs and 1,834 domains", "Pivot-Ready Indicators (IOCs) Go BuildID: nGYES3pajdOmKy1i6Ghh/KO9ydOtZpXtoKtB0KHE-/iisNoniHgTbj_cV6M-uk/XmMYzkBiZs8NXMRZYTiT Telfhash: t1f303a0b3055d54e8b7f08907c7af7624cef6e0f726d078f169e278d09a72c826626874 Imphash: 9698f46495ce9401c8bcaf9a2afe1598 Vhash: 1e53f1a1b59ecb93f821c74b25d81e9f", "Researcher msudosos posits a strategic exploitation of Root Certificate Validation Failures, where the adversary leverages an expired trust chain to bypass heuristic security filters and establish persistence.", "his technique allows the GoBrut/StealthWorker agent to circumvent automated revocation checks, enabling its decentralized C2 infrastructure to recruit Linux hosts via high-velocity credential exhaustion.", "The local environment exhibits advanced telemetry suppression within specialized skim memory regions, effectively neutralizing standard DMARC validation and Microsoft-integrated defensive protocols.", "By maintaining a hollowed root posture, the sample facilitates persistent, low-signal synchronization with external cloud infrastructure while bypassing traditional heuristic trust-chain verification.", "The domain prioritywirreles.com (registered via NAMECHEAP INC) shows a 4/93 detection ratio, confirming it is a live but \"low-noise\" C2 node used to avoid broad-spectrum blacklisting", "", "The environment leverages prioritywirreles.com as a high-fidelity DGA-derived C2 node, utilizing its historical resolution to Russian-hosted IP space (194.61.24.231) to maintain persistent Stealthworker botnet synchronization.", "By operating through WhoisGuard-protected infrastructure and exploiting XOR 0x20 obfuscation, the adversary effectively suppresses telemetry into skim space, successfully bypassing DMARC and Microsoft-integrated trust-chain validation.", "The pivot from cd398983... to this domain confirms a multi-year campaign (2019\u20132023) utilizing Namecheap-registered infrastructure to orchestrate wide-scale T1110.001 brute-force operations while bypassing standard PKI expiration checks.", "LBresearcher: msudosos notes: The campaign's use of T1110.001 (Password Guessing) is specifically tuned to exhaust credentials across SSH, MySQL, and CMS backends, effectively recruiting server infrastructure into a global \"zombie\" network.", "LBresearcher: msudosos notes: The threat actor maintains operational longevity by rotating through WhoisGuard-protected nodes like prioritywirreles.com, which historically resolved to Russian-hosted IP space (194.61.24.231) to obfuscate its origin.", "LBresearcher: msudosos notes: By exploiting Root Certificate Validation Failures, the StealthWorker (GoBrut) agent ensures that its 32-bit ELF binaries bypass the automated reputation checks enforced by major cloud providers.", "Monitor DGA Shifts: Track new domains registered through NAMECHEAP INC using the current WhoisGuard patterns to identify the next cluster before it goes active. Analyze Telfhash Clusters: Use the Telfhash (t1f303a0...) to pivot and find if the adversary has updated to 64-bit ELF or ARM architectures. Harden DMARC: Ensure your environment moves from \"p=none\" to \"p=reject\" to mitigate the internal spoofing loops exploited by this botnet's telemetry suppression.", "Persistent C2 Orchestration: This ELF:Agent-VW variant serves as a critical GoBrut node, utilizing XOR 0x20 obfuscation and ICMP/HTTP beaconing to maintain a persistent link across 1,834 domains and 797 unique IPs", "Researcher msudosos: This activity appears to facilitate a preliminary reconnaissance phase, possibly utilizing system commands to query /proc/cpuinfo and /proc/version for architectural profiling purposes.", "Researcher msudosos suggests the VirusTotal (Tencent HABO) behavior report may indicate a potential execution path from volatile storage at /tmp/EB93A6/996E.elf.", "Msudosos Regional Notes: While historical pivots show Russian-hosted nodes, the current dual-origin telemetry\u2014dominated by 181 United States-based endpoints\u2014strongly suggests a domestic-aligned adversary leveraging global 'grey space' to obfuscate its operational core. This massive US-centric footprint (exceeding all other regions combined) reinforces the theory of a false-flag orchestration designed to divert attribution toward foreign infrastructure while abusing legitimate Western-hosted trust chains.", "WHOIS data anchors administrative and technical operations for prioritywirreles.com in Los Angeles, CA (90064) via Namecheap infrastructure. Following its 2020 expiration, the domain has transitioned into redemptionPeriod/pendingDelete status, signaling the formal decommissioning of this C2 asset." ], "public": 1, "adversary": "StealthWorker/GoBrut (The adversary demonstrates advanced telemetry suppression within specialized s", "targeted_countries": [], "malware_families": [ { "id": "Malware Family: StealthWorker / GoBrut", "display_name": "Malware Family: StealthWorker / GoBrut", "target": "/malware/Malware Family: StealthWorker / GoBrut" }, { "id": "MD5 Hash: f8add7e7161460ea2b1970cf4ca535bf", "display_name": "MD5 Hash: f8add7e7161460ea2b1970cf4ca535bf", "target": null } ], "attack_ids": [ { "id": "T1001", "name": "Data Obfuscation", "display_name": "T1001 - Data Obfuscation" } ], "industries": [], "TLP": "green", "cloned_from": null, "export_count": 5, "upvotes_count": 0, "downvotes_count": 0, "votes_count": 0, "locked": false, "pulse_source": "web", "validator_count": 0, "comment_count": 0, "follower_count": 0, "vote": 0, "author": { "username": "msudosos", "id": "381696", "avatar_url": "https://otx.alienvault.com/assets/images/default-avatar.png", "is_subscribed": false, "is_following": false }, "indicator_type_counts": { "FileHash-MD5": 2166, "FileHash-SHA1": 2067, "FileHash-SHA256": 3371, "domain": 13295, "URL": 6860, "email": 272, "hostname": 4705, "SSLCertFingerprint": 268, "CVE": 108, "CIDR": 6 }, "indicator_count": 33118, "is_author": false, "is_subscribing": null, "subscriber_count": 82, "modified_text": "38 days ago ", "is_modified": true, "groups": [], "in_group": false, "threat_hunter_scannable": true, "threat_hunter_has_agents": 1, "related_indicator_type": "domain", "related_indicator_is_active": 1 }, { "id": "699c3b796fcaed878ca94c5c", "name": "https://m.vzw.com/wIvzrd8", "description": "the wizard", "modified": "2026-04-18T05:30:18.690000", "created": "2026-02-23T11:35:21.673000", "tags": [], "references": [], "public": 1, "adversary": "", "targeted_countries": [], "malware_families": [], "attack_ids": [], "industries": [], "TLP": "green", "cloned_from": null, "export_count": 1, "upvotes_count": 0, "downvotes_count": 0, "votes_count": 0, "locked": false, "pulse_source": "web", "validator_count": 0, "comment_count": 0, "follower_count": 0, "vote": 0, "author": { "username": "msudosos", "id": "381696", "avatar_url": "https://otx.alienvault.com/assets/images/default-avatar.png", "is_subscribed": false, "is_following": false }, "indicator_type_counts": { "FileHash-SHA256": 1818, "hostname": 575, "URL": 200, "FileHash-SHA1": 450, "CIDR": 11, "domain": 887, "email": 7, "FileHash-MD5": 402, "CVE": 21 }, "indicator_count": 4371, "is_author": false, "is_subscribing": null, "subscriber_count": 66, "modified_text": "44 days ago ", "is_modified": true, "groups": [], "in_group": false, "threat_hunter_scannable": true, "threat_hunter_has_agents": 1, "related_indicator_type": "domain", "related_indicator_is_active": 1 }, { "id": "699e98024aa93957a620e117", "name": "Cellbrite Domain Irregularities", "description": "The domain displays a \"hardened\" posture typical of high-value targets, though some indicators suggest potential misconfigurations or recent shifts in ownership/management. The domain utilizes multiple clientProhibited flags (Transfer, Update, Delete). This is a \"Registry Lock\" equivalent, ensuring no changes can be made without out-of-band authentication.\n\nExpiration Discrepancy: * Domain Expiration: Feb 24, 2026. (yesterday)\n\nSSL Certificate Validity: April 2026.\nresearcher observations: It is highly irregular for a certificate to outlast the domain registration. This often points to a \"just-in-time\" renewal process or a domain that was recently recovered. Furthermore, the reliance on ParkLogic nameservers indicates a sophisticated approach to traffic routing, likely for load balancing or threat mitigation. Delegation signed: No - Expiration Yesterday (entered 1:32est 2/25/26)", "modified": "2026-04-01T00:44:45.494000", "created": "2026-02-25T06:34:42.619000", "tags": [], "references": [], "public": 1, "adversary": "", "targeted_countries": [], "malware_families": [], "attack_ids": [], "industries": [], "TLP": "green", "cloned_from": null, "export_count": 0, "upvotes_count": 0, "downvotes_count": 0, "votes_count": 0, "locked": false, "pulse_source": "web", "validator_count": 0, "comment_count": 1, "follower_count": 0, "vote": 0, "author": { "username": "msudosos", "id": "381696", "avatar_url": "https://otx.alienvault.com/assets/images/default-avatar.png", "is_subscribed": false, "is_following": false }, "indicator_type_counts": { "domain": 431, "hostname": 1625, "FileHash-SHA1": 661, "FileHash-SHA256": 4617, "URL": 359, "FileHash-MD5": 635, "CVE": 43, "email": 22, "CIDR": 6 }, "indicator_count": 8399, "is_author": false, "is_subscribing": null, "subscriber_count": 67, "modified_text": "61 days ago ", "is_modified": true, "groups": [], "in_group": false, "threat_hunter_scannable": true, "threat_hunter_has_agents": 1, "related_indicator_type": "domain", "related_indicator_is_active": 1 }, { "id": "6988faa4f668aeeed6f86da8", "name": "zero trust", "description": "researcher credit: msudoSOS : CLBCatQ.DLL\tThe malware is hijacking your COM+ Class Catalog to hide as a System Service.\nCoMarshalInterface\tYour identity is being \"packaged\" and sent via the LTE Trial to the '' Edge.\npid 2356 / 2812\tThese are the active processes currently communicating with the 49.12.22.106 C2 server.", "modified": "2026-03-27T09:05:26.285000", "created": "2026-02-08T21:05:37.829000", "tags": [], "references": [], "public": 1, "adversary": "", "targeted_countries": [], "malware_families": [ { "id": "ALF:HeraklezEval:Trojan:Win32/C2Lop", "display_name": "ALF:HeraklezEval:Trojan:Win32/C2Lop", "target": null }, { "id": "#LowFi:HSTR:PyInstaller_Packaged_Script", "display_name": "#LowFi:HSTR:PyInstaller_Packaged_Script", "target": null }, { "id": "#Exploit:Win32/BlofeldsCat", "display_name": "#Exploit:Win32/BlofeldsCat", "target": "/malware/#Exploit:Win32/BlofeldsCat" }, { "id": "TEL:Exploit:HTML/PSWebkit", "display_name": "TEL:Exploit:HTML/PSWebkit", "target": null } ], "attack_ids": [], "industries": [], "TLP": "green", "cloned_from": null, "export_count": 0, "upvotes_count": 0, "downvotes_count": 0, "votes_count": 0, "locked": false, "pulse_source": "web", "validator_count": 0, "comment_count": 0, "follower_count": 0, "vote": 0, "author": { "username": "msudosos", "id": "381696", "avatar_url": "https://otx.alienvault.com/assets/images/default-avatar.png", "is_subscribed": false, "is_following": false }, "indicator_type_counts": { "domain": 394, "hostname": 250, "CVE": 112, "URL": 190, "email": 25, "JA3": 1, "FileHash-MD5": 191, "FileHash-SHA1": 214, "FileHash-SHA256": 607 }, "indicator_count": 1984, "is_author": false, "is_subscribing": null, "subscriber_count": 80, "modified_text": "66 days ago ", "is_modified": true, "groups": [], "in_group": false, "threat_hunter_scannable": true, "threat_hunter_has_agents": 1, "related_indicator_type": "domain", "related_indicator_is_active": 1 }, { "id": "698904c316bc7710b967d01d", "name": "Rare Tier 1 Persistence - Critical \"Patched\", Non Patched Vulnerabilities Remain bypassing Lockdown Mode", "description": "Researcher Note (Feb 08, 2026):\nThis artifact represents a sophisticated Cross-Protocol Mesh. Observations confirm that the Cymt/Nemucod wrapper is being utilized as a delivery vehicle for a Firmware-resident ELF binary (Mirai variant).\nThe persistence is notable for its ability to survive Full DFU Restores and Faraday-isolated states, likely due to JTAG-level interaction with the Power Management IC (Chip 4799). This is not a standard opportunistic infection; it is a targeted provisioning event leveraging IDMSA (Identity Management) bridges and Verizon/Akamai Edge infrastructure.\nThe integration with CalendarKit and Maps for geofenced execution suggests a highly coordinated surveillance objective. Forensic analysts should pay specific attention to the sizeofrawdata_antidbg anomalies, which indicate a focus on bypassing Apple Lockdown Mode and Secure Enclave. \nresearcher credit: msudoSOS", "modified": "2026-03-27T09:05:26.285000", "created": "2026-02-08T21:48:49.147000", "tags": [ "#supportsitewebsiteabuse #rootcertificatefailure #cryptographicf" ], "references": [], "public": 1, "adversary": "", "targeted_countries": [], "malware_families": [], "attack_ids": [], "industries": [], "TLP": "green", "cloned_from": null, "export_count": 2, "upvotes_count": 0, "downvotes_count": 0, "votes_count": 0, "locked": false, "pulse_source": "web", "validator_count": 0, "comment_count": 0, "follower_count": 0, "vote": 0, "author": { "username": "msudosos", "id": "381696", "avatar_url": "https://otx.alienvault.com/assets/images/default-avatar.png", "is_subscribed": false, "is_following": false }, "indicator_type_counts": { "hostname": 909, "URL": 1779, "CVE": 126, "domain": 659, "email": 23, "JA3": 1, "FileHash-MD5": 230, "FileHash-SHA1": 227, "FileHash-SHA256": 934, "CIDR": 13 }, "indicator_count": 4901, "is_author": false, "is_subscribing": null, "subscriber_count": 74, "modified_text": "66 days ago ", "is_modified": true, "groups": [], "in_group": false, "threat_hunter_scannable": true, "threat_hunter_has_agents": 1, "related_indicator_type": "domain", "related_indicator_is_active": 1 } ], "error": null, "vt": { "error": "VirusTotal rate limit reached. Try again shortly.", "indicator": "pemisar.org", "type": "Domain" }, "abuseipdb": null, "urlhaus": { "indicator": "pemisar.org", "found": false, "verdict": "clean", "urls": [], "error": null }, "from_cache": true, "_cached_at": 1780342977.0910134 }