General

  • Target

    9c799b1cf6c48dd7ad13cc9dce5034acc4c4e63c26edb8fa568dccf0cc62e362

  • Size

    804KB

  • Sample

    211022-ekp6psbbb3

  • MD5

    fd69e789785774b8b8cd3820aaef34d6

  • SHA1

    a0859cf0f3c73519369d6db52def047377a08b50

  • SHA256

    9c799b1cf6c48dd7ad13cc9dce5034acc4c4e63c26edb8fa568dccf0cc62e362

  • SHA512

    d9e3e668d9075337d7083e3e5ecf3d9f11d5c418a8f55e20815ad6472de01225896a764b6abd2f049fbfddb0697908a34c759771abaf34054fe79d25e063809e

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/lancer

Targets

    • Target

      9c799b1cf6c48dd7ad13cc9dce5034acc4c4e63c26edb8fa568dccf0cc62e362

    • Size

      804KB

    • MD5

      fd69e789785774b8b8cd3820aaef34d6

    • SHA1

      a0859cf0f3c73519369d6db52def047377a08b50

    • SHA256

      9c799b1cf6c48dd7ad13cc9dce5034acc4c4e63c26edb8fa568dccf0cc62e362

    • SHA512

      d9e3e668d9075337d7083e3e5ecf3d9f11d5c418a8f55e20815ad6472de01225896a764b6abd2f049fbfddb0697908a34c759771abaf34054fe79d25e063809e

    • Detected Djvu ransomware

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • 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