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PULSE DETAIL
PULSE NAME
Brazilian Caminho Loader Employs LSB Steganography and Fileless Execution to Deliver Multiple Malware Families Across South America, Africa, and Eastern Europe.
The Caminho Loader, identified by Arctic Wolf, is a sophisticated Brazilian-origin Loader-as-a-Service operation that employs Least Significant Bit (LSB) steganography to conceal malicious .NET payloads within image files hosted on legitimate platforms. Initial infection begins with spear-phishing emails that contain archived JavaScript or VBScript files, often using business-themed social engineering tactics. When executed, these scripts retrieve an obfuscated PowerShell payload that downloads steganographic images from services like archive.org, a digital archive known for its reputation and high availability.
MITRE ATT&CK & Malware Families
Indicators of Compromise (64)
| TYPE | INDICATOR | DESCRIPTION | CREATED | |
|---|---|---|---|---|
| CVE | CVE-2025-61884 | — | 2025-10-22 | |
| FileHash-MD5 | 1517ce8a9d9ff6d0ddbe3c6616061e3b | MD5 of c3560bfa9483e7894243e613c55744b7f1705a53969f797f5fe8b2cb4fb336cc | 2025-10-22 | |
| FileHash-MD5 | 1f73e7258fda2c5b7719591a35b65c43 | MD5 of c5208189f4851b8ff525bf3cd74767e89af4ef256b256ed1143f4c8f3a48b01f | 2025-10-22 | |
| FileHash-MD5 | 3603ce51b80bf50f15dcfd7addaf0476 | MD5 of 6291a85dd9c6288c9997c930cb243d29d671a1c3e0dbd6e0c2fb707355c400a3 | 2025-10-22 | |
| FileHash-MD5 | 3a2c528535fb5717816b04ab459933c0 | MD5 of c2bce00f20b3ac515f3ed3fd0352d203ba192779d6b84dbc215c3eec3a3ff19c | 2025-10-22 | |
| FileHash-MD5 | 3c751a9c652148b23521e06f23001132 | — | 2025-10-22 | |
| FileHash-MD5 | 413ef21e8e1da8ed8b5fa89719938418 | MD5 of 418fec787e2c694eb7b1c8c5d5afcc023a88a53ed4d29bac8260ff49d3682671 | 2025-10-22 | |
| FileHash-MD5 | 56a5e7c87e36960ce4dc9bba89d890dd | MD5 of 1ebab46691a0b5edd2b941c68180da9f6f38ca22b1de6c1804ccb0fda4956fe1 | 2025-10-22 | |
| FileHash-MD5 | 57902b374a5d9ff65879ca93198c2d60 | MD5 of 44d77dad67d9f0bf41999c3510dddb208889bcca22f56adbaf18945a08ba8984 | 2025-10-22 | |
| FileHash-MD5 | 661728638da04ade17aab3002b2e6c12 | MD5 of 89959ad7b1ac18bbd1e850f05ab0b5fce164596bce0f1f8aafb70ebd1bbcf900 | 2025-10-22 | |
| FileHash-MD5 | 722824f64af8dda95579a815c30bda26 | MD5 of 74b48909de2532080d55fc85fb7f24665d68701c1c59c910ee7ad5b83c86695d | 2025-10-22 | |
| FileHash-MD5 | 7b1ce80cd125a6d1652f87a1626b7c90 | MD5 of 87c9bede1feac2e3810f3d269b4492fe0902e6303020171e561face400e9bdb4 | 2025-10-22 | |
| FileHash-MD5 | 7dbf033d9b0c170b46e6abfbc104c807 | MD5 of 6513a6862e7cd9494566e56b6ccf2a88727f442ed217b73dc878d0097e7b0343 | 2025-10-22 | |
| FileHash-MD5 | 7dd4b992210313bce6ab4dfe262821fc | MD5 of 6216afeff2697e4010be6f4a76646360114bd73d555901c91cf26828531f0c24 | 2025-10-22 | |
| FileHash-MD5 | 83580969b9758ae2679b0f92a091db96 | MD5 of 003cd08d0e4e3e53b5c2dd7e0ea292059f88f827d0cb025adf478d1f8e005fbd | 2025-10-22 | |
| FileHash-MD5 | 8e7ded0089b6adfdd951b5d8175078f7 | MD5 of 0df13fd42fb4a4374981474ea87895a3830eddcc7f3bd494e76acd604c4004f7 | 2025-10-22 | |
| FileHash-MD5 | a783c45e84facd967ac27ddb5c21310f | MD5 of a6574dd934a98fc0421e771f30ad6db97af6714f919a6cc722f2213933b9e839 | 2025-10-22 | |
| FileHash-MD5 | a7ccc97c5e1928600abf8ff956e4c397 | MD5 of 592a21ec08f7f1755e4cb396da5e0d48ed6b9a3949c82ae6616eda95913416ee | 2025-10-22 | |
| FileHash-MD5 | d21d147d79518f4f89f2bed612f5ede4 | MD5 of b932adbdbb14644366daed1bede62d9293868c9a3eecbffc7c4e6604d6d5b243 | 2025-10-22 | |
| FileHash-SHA1 | 1626f1ffa240cae5388afb5f9360e70faa54300c | SHA1 of 1ebab46691a0b5edd2b941c68180da9f6f38ca22b1de6c1804ccb0fda4956fe1 | 2025-10-22 | |
| FileHash-SHA1 | 1f3e09271fc0f70b6d8b78a32002770a5e090ad8 | SHA1 of 6291a85dd9c6288c9997c930cb243d29d671a1c3e0dbd6e0c2fb707355c400a3 | 2025-10-22 | |
| FileHash-SHA1 | 2a9ab5e2de8f176f2f81d3d484e57ac6276e5f05 | SHA1 of 74b48909de2532080d55fc85fb7f24665d68701c1c59c910ee7ad5b83c86695d | 2025-10-22 | |
| FileHash-SHA1 | 412f7085360e8135073640f5914fb700386e601d | SHA1 of 89959ad7b1ac18bbd1e850f05ab0b5fce164596bce0f1f8aafb70ebd1bbcf900 | 2025-10-22 | |
| FileHash-SHA1 | 45771637dab1c2a5ea9779519234a25806539ddf | SHA1 of 6216afeff2697e4010be6f4a76646360114bd73d555901c91cf26828531f0c24 | 2025-10-22 | |
| FileHash-SHA1 | 4be0ac6b6e9a67694d1f498c0aa9d24469cd9d9d | SHA1 of 003cd08d0e4e3e53b5c2dd7e0ea292059f88f827d0cb025adf478d1f8e005fbd | 2025-10-22 | |
| FileHash-SHA1 | 4cacd8460915fc4c5970fdf673d48e5210f74131 | SHA1 of 87c9bede1feac2e3810f3d269b4492fe0902e6303020171e561face400e9bdb4 | 2025-10-22 | |
| FileHash-SHA1 | 501e5cc4cb65d55cff934e7447528fef5243578d | SHA1 of 0df13fd42fb4a4374981474ea87895a3830eddcc7f3bd494e76acd604c4004f7 | 2025-10-22 | |
| FileHash-SHA1 | 6567fec34c206a07c9e6b4ad680315c183dc7ee3 | SHA1 of 44d77dad67d9f0bf41999c3510dddb208889bcca22f56adbaf18945a08ba8984 | 2025-10-22 | |
| FileHash-SHA1 | 78f4872c59a674e9af203e497188bd2b8a983e93 | SHA1 of 418fec787e2c694eb7b1c8c5d5afcc023a88a53ed4d29bac8260ff49d3682671 | 2025-10-22 | |
| FileHash-SHA1 | 8a3a259eb4c7dd0db17d8be75aa0eb6cef1e384e | SHA1 of a6574dd934a98fc0421e771f30ad6db97af6714f919a6cc722f2213933b9e839 | 2025-10-22 | |
| FileHash-SHA1 | 93c482b74081dec2e97422ff7d9561cb67def712 | SHA1 of c3560bfa9483e7894243e613c55744b7f1705a53969f797f5fe8b2cb4fb336cc | 2025-10-22 | |
| FileHash-SHA1 | 9ad053576fb57ec7cb6198f8a2a556493da55967 | SHA1 of 592a21ec08f7f1755e4cb396da5e0d48ed6b9a3949c82ae6616eda95913416ee | 2025-10-22 | |
| FileHash-SHA1 | b4b13763c262110327d235de1596f2cf03de0203 | SHA1 of c5208189f4851b8ff525bf3cd74767e89af4ef256b256ed1143f4c8f3a48b01f | 2025-10-22 | |
| FileHash-SHA1 | b9fdb63ac8d4cf16e95f2e3baa2b9b76bbc2197b | SHA1 of 6513a6862e7cd9494566e56b6ccf2a88727f442ed217b73dc878d0097e7b0343 | 2025-10-22 | |
| FileHash-SHA1 | ca6d4bd26cb6abf0c73981ff22af8d65fba60403 | SHA1 of b932adbdbb14644366daed1bede62d9293868c9a3eecbffc7c4e6604d6d5b243 | 2025-10-22 | |
| FileHash-SHA1 | d210a5be133c143bfb8005dc9804a70fcbe91810 | SHA1 of c2bce00f20b3ac515f3ed3fd0352d203ba192779d6b84dbc215c3eec3a3ff19c | 2025-10-22 | |
| FileHash-SHA256 | 003cd08d0e4e3e53b5c2dd7e0ea292059f88f827d0cb025adf478d1f8e005fbd | — | 2025-10-22 | |
| FileHash-SHA256 | 0df13fd42fb4a4374981474ea87895a3830eddcc7f3bd494e76acd604c4004f7 | — | 2025-10-22 | |
| FileHash-SHA256 | 134c29f52884adc5a3050e5c820229e060308e7377c7125805a6bfccd0859361 | — | 2025-10-22 | |
| FileHash-SHA256 | 1d6e6f058ccb021143872bd068367bff6d665b742a34b2ad84d33e741d3841a8 | — | 2025-10-22 | |
| FileHash-SHA256 | 1ebab46691a0b5edd2b941c68180da9f6f38ca22b1de6c1804ccb0fda4956fe1 | — | 2025-10-22 | |
| FileHash-SHA256 | 418fec787e2c694eb7b1c8c5d5afcc023a88a53ed4d29bac8260ff49d3682671 | — | 2025-10-22 | |
| FileHash-SHA256 | 42761793d309a0e10b664de61fb25f8d915c65a86b4c5b6229c73d3992519fd5 | — | 2025-10-22 | |
| FileHash-SHA256 | 44d77dad67d9f0bf41999c3510dddb208889bcca22f56adbaf18945a08ba8984 | — | 2025-10-22 | |
| FileHash-SHA256 | 592a21ec08f7f1755e4cb396da5e0d48ed6b9a3949c82ae6616eda95913416ee | — | 2025-10-22 | |
| FileHash-SHA256 | 6216afeff2697e4010be6f4a76646360114bd73d555901c91cf26828531f0c24 | — | 2025-10-22 | |
| FileHash-SHA256 | 6291a85dd9c6288c9997c930cb243d29d671a1c3e0dbd6e0c2fb707355c400a3 | — | 2025-10-22 | |
| FileHash-SHA256 | 6513a6862e7cd9494566e56b6ccf2a88727f442ed217b73dc878d0097e7b0343 | — | 2025-10-22 | |
| FileHash-SHA256 | 74b48909de2532080d55fc85fb7f24665d68701c1c59c910ee7ad5b83c86695d | — | 2025-10-22 | |
| FileHash-SHA256 | 780438284cea7d935c900df9b61529664c533762e1dbc9bbec3085e6c19448d1 | — | 2025-10-22 | |
| FileHash-SHA256 | 87c9bede1feac2e3810f3d269b4492fe0902e6303020171e561face400e9bdb4 | — | 2025-10-22 | |
| FileHash-SHA256 | 89959ad7b1ac18bbd1e850f05ab0b5fce164596bce0f1f8aafb70ebd1bbcf900 | — | 2025-10-22 | |
| FileHash-SHA256 | a0e2b00951c6327788e3cc834a2d5294c2b7f94aad344ec132fe78b30cce18cc | — | 2025-10-22 | |
| FileHash-SHA256 | a6574dd934a98fc0421e771f30ad6db97af6714f919a6cc722f2213933b9e839 | — | 2025-10-22 | |
| FileHash-SHA256 | b932adbdbb14644366daed1bede62d9293868c9a3eecbffc7c4e6604d6d5b243 | — | 2025-10-22 | |
| FileHash-SHA256 | bbed1022d04cdfb0d11550ada9f5c1d0a9437839b1e42bb80e057438055a382c | — | 2025-10-22 | |
| FileHash-SHA256 | c2bce00f20b3ac515f3ed3fd0352d203ba192779d6b84dbc215c3eec3a3ff19c | — | 2025-10-22 | |
| FileHash-SHA256 | c3560bfa9483e7894243e613c55744b7f1705a53969f797f5fe8b2cb4fb336cc | — | 2025-10-22 | |
| FileHash-SHA256 | c5208189f4851b8ff525bf3cd74767e89af4ef256b256ed1143f4c8f3a48b01f | — | 2025-10-22 | |
| domain | cestfinidns.vip | — | 2025-10-22 | |
| domain | ep-eps.com | — | 2025-10-22 | |
| domain | serverdata-cloud.cloud | — | 2025-10-22 | |
| domain | tagbox.io | — | 2025-10-22 | |
| domain | virtualine.org | — | 2025-10-22 |