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Rewterz Threat Intel – GuLoader Malspam Campaign – Active IOCs

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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

  • 660c335fba05fcad93cc95786e25d75a
  • 77f9732c9e9a59f037ec3fa8efcda969
  • 4edfb74b934516fc46ab003fcf257dbc
  • 6b107659d7e4b9fc7a1fa1c37b2c26ef
  • a23d77f29884ad1d0203e3aed793091b

SHA-256

  • 45b4767221a7acd960ed92deb7195b4c5196f1ca500ccd7220d3f1f89c2f55c0
  • 2218c2781b84ca81463dd54cc809c41ae2b7fc811ea54d6109623b73b03cddf2
  • c90d8ecc0b488407ecb9555db2427952fe2533155fae8c2c5568145100c7bf5d
  • 43e566121edcc03c90a83a05e472cd037c201e6565c1e5607f5a112e0adb13fc
  • 940049a73f4604611186b3fe1f93bec8328d4ca2c486499d5be25df5b5d51ca9
  • 2ac400e585ea2efac44e3a2b52f10928e851f568d3f3dda0f7ba679642cabbda
  • 3fc1fa698d3bd51eebdd706d4fd8c20ee03a0edb0266a27abac9787b9fdb6b2c
  • e780eec0d603f5a419530a5d2c6fd85c664ac0cac7f97ba1136263fe57ea5a64

SHA-1

  • 986b414a7ef2bdd00643c3a6e5790738d48b3f59
  • cd73aef5b9a6642c513ef6812f7dcda04d66199d
  • 722fb4793f2586bc98e6cd3b371c0750b827b3cd
  • 3b25f7c71d738f809c7075cfd72da8de990b4f49
  • 1c372091f09b1f8301239c4c4100e4a98db6f5cf

Remediation

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

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