PULSE NAME
Brazilian Caminho Loader Employs LSB Steganography and Fileless Execution to Deliver Multiple Malware Families Across South America, Africa, and Eastern Europe.
WHITE PetrP.73 2025-10-22 Modified: 2025-11-21
64
IOCs
HIGH VOLUME
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.
Indicators of Compromise (64)
All CVE FileHash-MD5 FileHash-SHA1 FileHash-SHA256 domain
TYPEINDICATORDESCRIPTIONCREATED
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