General

  • Target

    2b13d88349d426f72cb04c72247bfa48e25c6deb206d6e4cea169510c0bf508d

  • Size

    2.5MB

  • Sample

    240607-15yt8sed42

  • MD5

    ecfb5823dcd477930b37901fbdbd9187

  • SHA1

    4e19612503ac8aad3e8805201c63209cc124a191

  • SHA256

    2b13d88349d426f72cb04c72247bfa48e25c6deb206d6e4cea169510c0bf508d

  • SHA512

    47e20620bb80122f0447ccf0a7904804b03a7a7145111d31ab94cfb5352fe816894b598564d243ea42485cbc7179c926d9f727415eeb4e1a87e7717a8571afae

  • SSDEEP

    49152:Zcm4081qpZBUbHEmJisEAQACR07Q3byRD8aXY658:ZcmmqvBUbHtgfAw07QLyLn

Malware Config

Extracted

Family

stealc

rc4.plain

Extracted

Family

vidar

C2

https://t.me/r8z0l

https://steamcommunity.com/profiles/76561199698764354

Attributes
  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:128.0) Gecko/20100101 Firefox/128.0

Targets

    • Target

      2b13d88349d426f72cb04c72247bfa48e25c6deb206d6e4cea169510c0bf508d

    • Size

      2.5MB

    • MD5

      ecfb5823dcd477930b37901fbdbd9187

    • SHA1

      4e19612503ac8aad3e8805201c63209cc124a191

    • SHA256

      2b13d88349d426f72cb04c72247bfa48e25c6deb206d6e4cea169510c0bf508d

    • SHA512

      47e20620bb80122f0447ccf0a7904804b03a7a7145111d31ab94cfb5352fe816894b598564d243ea42485cbc7179c926d9f727415eeb4e1a87e7717a8571afae

    • SSDEEP

      49152:Zcm4081qpZBUbHEmJisEAQACR07Q3byRD8aXY658:ZcmmqvBUbHtgfAw07QLyLn

    • Detect Vidar Stealer

    • Stealc

      Stealc is an infostealer written in C++.

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Downloads MZ/PE file

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • Reads user/profile data of web browsers

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

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Checks installed software on the system

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

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks