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

• 64e5ddefb304eba030aac2bd2eb7f228
• 6a75cce0be736b182e515083ea1d6405

SHA-256

• d2ebab1807dd44bad7b61ac4b53e5d4e8dcdd1daa20d521c778400610fc1a252
• 296103d2acf1d73c22a5d65a93bb18d9a3e41f256dcc9e5a372dc545fbf6c4db

SHA-1

• 5da2bbbc2217033144de7cfded336b8c373856f7
• c74d2b61bfdef29f52ab085f35b4d140ddefc569

Remediation

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