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July 13, 2021Severity
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
- 3768ec4494f7eee12cc7ad1fb7f49354
- 4dfc58dc5607471119dfeeaa17b20a6c
- b030e40c262ca9223e377f34b1840f54
- 18bd4d4ad5a30836e475c881bf649bab
SHA-256
- 4cf933c9f31b4e3dae8002043c64a401f91a228adeadfbca9b172b3333f1be6b
- 86116b07da5af6a870f7189eb056a4af32bbcb572ae32ab2c773f736c903c60f
- 92d41c0ab52f963ae2767dabcb62556550f9050ba54c2a6b1a3b0ea7f5cd3a48
- 1bd8f9e2a4de6bb859ce0af45b63c53c8a0110e25ee99276026f3a4639597d46
SHA-1
- c7797638f47bc93f081f5d621a3ab19dbf00c810
- d808932db1af135b73602901be893879544f2ae2
- 5b8f7635933cdd2b31adf441dd872d41a5a75c5d
- 3382d95fc8f3055a2bdf91bd4f3bd562add03964
URL
- https[:]//attach[.]mail[.]daum[.]net/bigfile/v1/urls/d/LDdLhSonrtpu5D9J5HpMKt4fgII/luKx-JfIDqaq8EhCkpn3gA
- https[:]//attach[.]mail[.]daum[.]net/bigfile/v1/urls/d/VtiSB0cJZj7mr2Csav9jsgU6RTs/sLeLKrCTI_C9DKEBKTfkOQ
Remediation
- Block all threat indicators at your respective controls.
- Search for IOCs in your environment.
- Do not download files attached in untrusted emails.