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November 2, 2021
Rewterz Threat Alert – Quasar RAT – Active IOCs
November 2, 2021
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
- 13f1b2e120717d36e423128dcc33b6e2
- 14ed994fbe56803fdfa0fc45f5c18510
- 2f1fd136548ae71b3038368f894a37cf
- a928d1866afcb0696d4ac43ceec12128
- 8d29bc50a601648241a13f81bc6e0f50
- bcb1f4325fc6f66e06d27bc0b680940b
- 4a03fdac1c34f846a9bf9c2ac1f75282
- 81a180a6ff8de4d2e50f230974a0acd4
SHA-256
- 9171c65fca47c17fffac4840eb89d4f21a2abc313666597f0f2425b65a6dcd67
- df7583bdd967818800bf1040175498b8f3312271d6eda618b181c6ff8b6809a2
- 28abbfa5905f8bb99ff6f2847ffc8bb6ac19253a5e774eab2bb7607995fd5b7e
- 1aa28435e63887b1ee372f54ce2e926888d19f5d3d3ab4d35d39da4b5272d721
- 7d2fedc23aff155a0fc9027a0148aa5b184f5983d47e08bc051707f72cc83684
- 6d1fbff085cc6e783b306932a047463455deaca5c62757f50ee2babad6768952
- 051add746f1800884c3700c9a040d6dbf4c2aedb2621741820e4d0f53e0c1a02
- 536efdb7661f63f94b801b4f4a7ce045834116a4a3fd473c9b744f5fc9d5a266
SHA-1
- 0c32d4929546c10d84e570fd0b4c08c8e039f001
- 6294147a255a4cebc212b1528df15820419fdcab
- 52a1e24e823be30c5e9ca30f4d2c20c291f91aab
- 55edbb8f5334194ab0345bd72b9cf58ddb384579
- 2c558ac80e157a8d5daa7dbe92807af7ca082063
- d426b19ab01b43dc173eefe4db1fe6d7304a6f5b
- 51bdfbe047d1f192fff1ded5b6def3768a17598e
- f112699475ca07c896efe745f364e3f39cb0ddec
Remediation
- Block all threat indicators at your respective controls.
- Search for IOCs in your environment.