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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
- ba24c9c748b75fb64abc01cc6c18ed81
- ab9ba9d53eae061d98c3b960f556fed0
- a583767ab5f766830627c627d6d0a25b
- d947d670aefcb65eed9e9191bb6659b7
SHA-256
- 25cf0d59c10c48159f55b2ed560b6f3974f5b007b9b4bb31b9cfd5e33ca0bd09
- cbaf2cbc0ae22d77b6ad28c6378e394e811eb9f489e51e86acdfbf60a8a51562
- 657cab120187572696f7c42467fa8f996cba9a26c0a0583c528f49dc147823e5
- 7f3e97e42369a76be6688dc29fe71b83b0754acc7df08a6253460e23da7d1ce7
SHA-1
- a08173593973d23242ad28722cf60924f77fdcff
- a3766e895b88ed7f36e3a3647d95844ac5c7b4d2
- 90d8650c12d57a6e46f13fbee87fa2ae4469bbfe
- 50562d1ed8484b631397db5f37077e67ddfa60e1
Remediation
- Block all threat indicators at your respective controls.
- Search for IOCs in your environment.
- Do not download files attached in untrusted emails.