General

  • Target

    34bd96b36aa928eba8c112c3ae85924b58e446296a144965310147477bb4cc03

  • Size

    851KB

  • Sample

    211020-qtft6saack

  • MD5

    80ca42f1f48e4869f5eb96ea43213ec3

  • SHA1

    6a3b3384dfd30fc29a7fe14b7d5b2383861f21e7

  • SHA256

    34bd96b36aa928eba8c112c3ae85924b58e446296a144965310147477bb4cc03

  • SHA512

    023176b9a07d08a07cdefa857c1f5ac3e5b72d5cadae264dc7964a5431e6c7c6c96dd2224f24d7d3fc9e4c11d1cf6c01f75aa57d817208129e3fa001b78b8072

Malware Config

Extracted

Family

vidar

Version

41.5

Botnet

517

C2

https://mas.to/@xeroxxx

Attributes
  • profile_id

    517

Extracted

Family

djvu

C2

http://rlrz.org/fhsgtsspen6

Targets

    • Target

      34bd96b36aa928eba8c112c3ae85924b58e446296a144965310147477bb4cc03

    • Size

      851KB

    • MD5

      80ca42f1f48e4869f5eb96ea43213ec3

    • SHA1

      6a3b3384dfd30fc29a7fe14b7d5b2383861f21e7

    • SHA256

      34bd96b36aa928eba8c112c3ae85924b58e446296a144965310147477bb4cc03

    • SHA512

      023176b9a07d08a07cdefa857c1f5ac3e5b72d5cadae264dc7964a5431e6c7c6c96dd2224f24d7d3fc9e4c11d1cf6c01f75aa57d817208129e3fa001b78b8072

    • Detected Djvu ransomware

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • suricata: ET MALWARE Potential Dridex.Maldoc Minimal Executable Request

      suricata: ET MALWARE Potential Dridex.Maldoc Minimal Executable Request

    • suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)

      suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)

    • suricata: ET MALWARE Vidar/Arkei Stealer Client Data Upload

      suricata: ET MALWARE Vidar/Arkei Stealer Client Data Upload

    • suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer Data Exfil

      suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer Data Exfil

    • Vidar Stealer

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Loads dropped DLL

    • Modifies file permissions

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Accesses 2FA software files, possible credential harvesting

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Adds Run key to start application

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Registry Run Keys / Startup Folder

1
T1060

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

File Permissions Modification

1
T1222

Modify Registry

2
T1112

Install Root Certificate

1
T1130

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

3
T1005

Tasks