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

• 4b57ab30e2ecf878c6d980369432f957
• c126f53f5b81c855bd0b33196d4a4519
• 1b5154bc65145adba0a58e964265d5f2
• 93fd2f170ba8a5fa7605c0189848e7a3
• 966a43d1602a3fe9bd991c5099b56011
• 9b5c35af1cfbbd60500b69f830b51032

SHA-256

• 774ae4107d461361d672eb14e89dd4aec312cc1b880e7b24c0cbad40c774c0ce
• 9ec225728e5bbc2bfc0f36375d4e1ae55e9fd00d6840c1e794ed91ddd7254423
• c48cd55efee57f0b7ff4547a0a20ebfbdf4188d059512b10a29879bf30c4fc19
• e9de1bebd472e08cd775338bf3f19044dc4bce1c8509ff0b0953bd21f1b24d20
• 760c8e2c4cbce2a8973c20e910a648b716e8e505c2e22e688d1ea3ad75a16746
• 671faba0eb9abca8a2548f6a522ce2949b655ad273dbe8cc8db61378f088bc96

SHA-1

• 356038e8406ceb627969f0b6e5156f5ab5fe6c1b
• 420c006f4dbbd98214bd7ff051cab90bc102f926
• 5a96fd55be61222b3e6438712979dc2a18a50b8c
• 9622bc4fb82ab4e468b72d9fecbed1ae0969c009
• aef71b7621612ea2cac895cbc09fb88c30544947
• a1053b4031ac666f846d056a08360e174b463344

Remediation

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