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MalwarePublished

Evolving with a new Javascript module

Source AlienVault OTX General

0

Description

Famous Chollima, a North Korean threat group, has deployed a new malware campaign targeting job seekers by impersonating hiring organizations. The attack involves a trojanized Node.js application named 'Chessfi' and uses evolving malware tools BeaverTail and OtterCookie, which now include keylogging and screenshot capabilities. A malicious Visual Studio Code extension embedding these tools was also discovered, indicating new infection vectors. The malware steals cryptocurrency credentials by targeting multiple browsers and wallet extensions, and it can upload files from compromised systems. This campaign leverages social engineering and developer tools to infiltrate victims, focusing on cryptocurrency theft and credential harvesting. The threat is medium severity due to its broad capabilities and stealth but requires user interaction for infection. European organizations involved in software development, cryptocurrency, and job recruitment are at particular risk.

Indicators of compromise

URLs 8

  • http://135.181.123.177/api/service/makelog
  • http://144.172.112.50/api/service/makelog
  • http://144.172.96.35/api/service/makelog
  • http://172.86.88.188/api/service/makelog
  • http://172.86.88.188/api/service/process/c841b6c4ac4d2e83f16cf7a8bfbec3d7
  • http://23.227.202.244:1224/brow/14/144
  • http://23.227.202.244:1224/client/14/144
  • http://23.227.202.244:1224/payload/14/144

Hashes 19

  • 1e20dfc8145abced35dd934d5136e5dd
  • c841b6c4ac4d2e83f16cf7a8bfbec3d7
  • c92141f85f48125d49c54afcb12808c6
  • 1822242564e48587464326c3e98340a6011a263e
  • c3423385473161d96036da9a0146ce11fbad7273
  • 0904eff1edeff4b6eb27f03e0ccc759d6aa8d4e1317a1e6f6586cdb84db4a731
  • 51ddd8f6ff30d76de45e06902c45c55163ddbec7d114ad89b21811ffedb71974
  • 6a9b4e8537bb97e337627b4dd1390bdb03dc66646704bd4b68739d499bd53063
  • 72ebfe69c69d2dd173bb92013ab44d895a3367f91f09e3f8d18acab44e37b26d
  • 77aec48003beeceb88e70bed138f535e1536f4bbbdff580528068ad6d184f379

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