General

  • Target
    0fbd60e2b0253dddc32ef110d0cd71d4.exe
  • Size 838KB
  • Sample210904-g12wjsdhf4
  • SHA256 9a9f3b0dbf3655264bdabd0e02127d74b341522c669d3eb11b22b2e2da97867f
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • vidar

Version
  • 40.4

Botnet
  • 517

C2
  • https://romkaxarit.tumblr.com/

Attributes
  • profile_id

    517

Targets

    • Target
      0fbd60e2b0253dddc32ef110d0cd71d4.exe
    • Size 838KB
    • SHA256 9a9f3b0dbf3655264bdabd0e02127d74b341522c669d3eb11b22b2e2da97867f
    • MD5 SHA1 SHA512
    • Detected Djvu ransomeware

    • 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 Enterprise v6

Tasks