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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
- System reboot
- Exposure of sensitive data
Indicators of Compromise
MD5
- 33e5d41c8c70b1b9cf9ed44b5a4db9df
- e4a7a29c60a51f6a17c1cba3cfd0c444
- 646dc3c49136b5ebe283a93fe79ef0cf
SHA-256
- 98da1ec96fd2444a4aa095d87c1346482389eabd517e70ab74577171ffda6937
- 98acba30e1beae1f5b26942e308d3e34e776abf297925b373bfe1e39ed6d5dc2
- 1e9081ddd63d896b25d66ea3df1910d2f109efb35025f5dd13bc13ee23d2ccec
- 58875ba3ce61509ab2a613c3a01c458183352f5d9824f0eebffd8ad90806ae4d
SHA1
- 292e8f921070534332a4b0dbf7b8c86d761e18ff
- b888ea3b9d4f0d63f1c51a33330434c524dd6dc5
- ca65247b0fff029ea0b79aefc5dd7b74e8340590
Remediation
- Block all threat indicators at your respective controls.
- Search for IOCs in your environment.
- Do not download files attached in untrusted emails