{ "type": "SHA1", "indicator": "5f8315f3a414bad3f8d94de451bacea87e5599db", "general": { "sections": [ "general", "analysis" ], "type": "sha1", "type_title": "FileHash-SHA1", "indicator": "5f8315f3a414bad3f8d94de451bacea87e5599db", "validation": [], "base_indicator": { "id": 4243324190, "indicator": "5f8315f3a414bad3f8d94de451bacea87e5599db", "type": "FileHash-SHA1", "title": "", "description": "", "content": "", "access_type": "public", "access_reason": "" }, "pulse_info": { "count": 3, "pulses": [ { "id": "69a02837827feb0b78fa3ad2", "name": "The Belasco Chain", "description": "The adversary delivers a masterclass in \"Regular Belasco\" stagecraft, utilizing authentic Adobe PIDs to construct a \"living library\" of legitimacy where mundane metadata like SOPHIA.json acts as Gatsby\u2019s \"real but uncut\" volumes to mask a hollowed-out interior. This is a triumph of performative evasion; while researchers marvel at the realism of the set-dressing, MSI50B8.tmp and MSI4F2F.tmp wait in the wings of the Windows\\Installer directory, invisible to the human eye and using NGEN hijacking to bake illicit scripts directly into the OS framework. By employing Cryptnet certificates as \"stage lighting\" to mask C2 handshakes, the malware doesn't just attend the system\u2019s party\u2014it rewrites the invitation to own the house. Unlike the tragic end at West Egg, this Belasco chain is a play that refuses to end; it simply resets the stage, ensuring the performance continues as long as the \"green light\" of the C2 remains active.", "modified": "2026-06-02T10:34:57.454000", "created": "2026-02-26T11:02:15.932000", "tags": [ "file size", "mwdb", "bazaar", "sha3384", "ssdeep", "file type", "sha1", "sha256", "crc32", "filenames c" ], "references": [], "public": 1, "adversary": "", "targeted_countries": [], "malware_families": [], "attack_ids": [], "industries": [], "TLP": "green", "cloned_from": null, "export_count": 6, "upvotes_count": 0, "downvotes_count": 0, "votes_count": 0, "locked": false, "pulse_source": "web", "validator_count": 0, "comment_count": 2, "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": 2813, "FileHash-SHA1": 2576, "FileHash-SHA256": 8145, "domain": 1903, "hostname": 1502, "URL": 1359, "email": 46, "CVE": 54, "CIDR": 3, "YARA": 7, "JA3": 1, "IPv4": 2 }, "indicator_count": 18411, "is_author": false, "is_subscribing": null, "subscriber_count": 76, "modified_text": "14 hours ago ", "is_modified": true, "groups": [], "in_group": false, "threat_hunter_scannable": true, "threat_hunter_has_agents": 1, "related_indicator_type": "FileHash-SHA1", "related_indicator_is_active": 1 }, { "id": "69aa842cef967c844adef1de", "name": "CAPE Sandbox part 2 - 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This is a triumph of performative evasion; while researchers marvel at the realism of the set-dressing, MSI50B8.tmp and MSI4F2F.tmp wait in the wings of the Windows\\Installer directory, invisible to the human eye and using NGEN hijacking to bake illicit scripts directly into the OS framework. By employing Cryptnet certificates as \"stage lighting\" to mask C2 handshakes, the malware doesn't just attend the system\u2019s party\u2014it rewrites the invitation to own the house. Unlike the tragic end at West Egg, this Belasco chain is a play that refuses to end; it simply resets the stage, ensuring the performance continues as long as the \"green light\" of the C2 remains active.", "modified": "2026-06-02T10:34:57.454000", "created": "2026-02-26T11:02:15.932000", "tags": [ "file size", "mwdb", "bazaar", "sha3384", "ssdeep", "file type", "sha1", "sha256", "crc32", "filenames c" ], "references": [], "public": 1, "adversary": "", "targeted_countries": [], "malware_families": [], "attack_ids": [], "industries": [], "TLP": "green", "cloned_from": null, "export_count": 6, "upvotes_count": 0, "downvotes_count": 0, "votes_count": 0, "locked": false, "pulse_source": "web", "validator_count": 0, "comment_count": 2, "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": 2813, "FileHash-SHA1": 2576, "FileHash-SHA256": 8145, "domain": 1903, "hostname": 1502, "URL": 1359, "email": 46, "CVE": 54, "CIDR": 3, "YARA": 7, "JA3": 1, "IPv4": 2 }, "indicator_count": 18411, "is_author": false, "is_subscribing": null, "subscriber_count": 76, "modified_text": "14 hours ago ", "is_modified": true, "groups": [], "in_group": false, "threat_hunter_scannable": true, "threat_hunter_has_agents": 1, "related_indicator_type": "FileHash-SHA1", "related_indicator_is_active": 1 }, { "id": "69aa842cef967c844adef1de", "name": "CAPE Sandbox part 2 - 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Try again shortly.", "indicator": "5f8315f3a414bad3f8d94de451bacea87e5599db", "type": "Hash" }, "abuseipdb": null, "urlhaus": null, "from_cache": true, "_cached_at": 1780463700.9022906 }