Rewterz Threat Alert – Active IOCs- FormBook Malware

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

• 439082fb8616a7ee6ce56ea3a7682080
• cc220989bd9311e494f9b7830e95ff5a
• 1562becba4f926150ced8f08a42c9111

SHA-256

• da5e4f1f4945b3d49a38123f8c80ac861b5ab7720efec6dc194a1e6dbec0fdc2
• afaa0772d6adea82213659bc89f731cf87378a864a8aa75aade1b149f6c34a6b
• 5827618e631faa0da77858e8849358e5f1e811c62986700aa1f33cf4e26ce516
• b475b8978e80b7cfc97d95df7e5c7b51efd86ec23d5257ec0c5aa40df7abf30a

SHA1

• 35a687f068f783c0bbf7ac7c8ad597952f046554
• 3a8f385ee74e556ef099e53393c2ad08faa94b52
• dc0a94947dd9ffa8f928ce0e3098965f365410d9

Remediation

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