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
- 1799fcd43e061a809b679e8da992b7e6
- 0d7a82d5b0a6229290c29d7d9ab2afd5
- 3d2864288037f23fd3cbc5ad7d7754fb
SHA-256
- 22bb6e04e78a2c4e5620e588228a99653abdff1925dff84e4da22428b61d9c44
- 3f8ad2cbdb3fee106c2fdbd52d9823aaa8270da46b769d39360839841d2dc47c
- fffc665a528ef7890cc8ad27da9b1e1e9b5d813455875fdf591f5ddcaf86e490
SHA-1
- f2110972d32e21e46924501cf8d6e6a06d21083d
- 68290408f7abd2b9d6f140e2389ef7b00262f016
- 958ac5b831dcd96f918f3add94ae3b1523f56f2c
Remediation
- Block all threat indicators at your respective controls.
- Search for IOCs in your environment.
- Do not download files attached in untrusted emails.