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Rewterz Threat Alert – FormBook Malware – Active IOCs

Severity

Medium

Analysis Summary

FormBook is an information-stealer malware that has been active since 2016. The info-stealer malware’s capabilities include stealing credentials, capturing screenshots of victim’s desktop, monitoring clipboard, keystroke logging, clearing browser cookies, downloading and executing files, uploading and removing bots, launching commands via ShellExecute, downloading and unpacking ZIP archive, rebooting and shutting down the system. The attackers behind these email campaigns used a variety of distribution techniques to deliver the FormBook info-stealer, including PDFs, Office Documents, ZIP, RAR, etc. Some of these files are related to quotation requests.

Impact

  • Credential theft
  • Keystroke logging
  • Data Theft

Indicators of Compromise

MD5

  • f50129eee93c12e6dea7ad917f85d7b1
  • 346c1f083ba87535c999f17587d0d8b9
  • f0ed2e7cf6f9f1d1c50685e851a06412
  • b60fb0b3174ffd6ccf46d23e5dd4f291

SHA-256

  • b9b1a3245f7aa2f9fadc4cff8343866030a63f297167df00ca0aa4284f453be1
  • 537a1b1e9a633875a74664967b2e62803f01b619fb26df9b4762b6795ee1b0ec
  • ed97e9802edd407c13fe0fa214582d2c4623797bb0c38b0b583a1d919d078284
  • 56d324b70dec3c259864216d918929470e10dc5582ae70f238aaad4887358d7b

SHA-1

  • c61eaa832970de9010b1734a9900e84da94b0dcf
  • 82a6caee2df88f4944f0f144e70f8d70675ec45e
  • 3d0949bc857db236e56c495d6a570e54bd09d6c8
  • fedb0bc2f7e46d58061b8742b5d5ad61b525ab4f

Remediation

  • Block all threat indicators at your respective controls.
  • Search for IOCs in your environment.
  • Do not download files attached in untrusted emails.