Rewterz Threat Alert – FormBook Malware – Active IOCs

Severity

High

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, ACE or ICO attachments, as well as shortened URLs.

Impact

• Credential theft 
• Keystroke logging 
• Clear browser cookies 
• System Reboot 
• Exposure of sensitive data

Indicators of Compromise

MD5

• 6f8d000435de793b923807ed9b2c5d57
• f10cd98e8df73e2b61b07d9109fad279

SHA-256

• bd3ec8d78bf4d4284aaa15e4a0780feea1420774dc1ea841f77a02d93ec93303
• 78812e3b6f1cf3821adf60c1a545525b697defe099fbb39628895e58c0a89cd7
• a544b3e2fafa00888471000fd394600f80d4c2c74a36a78246996f3d5c61c846
• 1c4d99bf7c55aa54ccc1b40b60a01885e57241d583bfc718524926f7c7d036be

SHA1

• 67c2b9629ba65da20dcee7739d3df6c617550468
• ab0ac1195b88ac29b8b227bd3b9354a1b5cfe63b

Remediation

• Block all threat indicators at your respective controls.
• Search for IOCs in your environment.