General

  • Target

    f90902518f3bbb078debe0a35915f858d6dfdd21a03878d2864295e408b02f28

  • Size

    1.6MB

  • Sample

    240612-mewqas1cqd

  • MD5

    9707142f138d710e70827e134bdaa865

  • SHA1

    1d2d33789a2db84238b74e6f8c22d59fcf91b013

  • SHA256

    f90902518f3bbb078debe0a35915f858d6dfdd21a03878d2864295e408b02f28

  • SHA512

    59420dc4cb48d6fee6b58ee71113b1a49ad950a477d06ab83d518e6ea894436f9b0c232f02bd299d633be1b837954fc220b542f73bf65c195966a179454c1635

  • SSDEEP

    24576:spM5863IGfTAVpalBXUfMxVVtes12FxwojKr98YGeGG9i:spQLYkTYp6BXUkxVVChjHZQs

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

      f90902518f3bbb078debe0a35915f858d6dfdd21a03878d2864295e408b02f28

    • Size

      1.6MB

    • MD5

      9707142f138d710e70827e134bdaa865

    • SHA1

      1d2d33789a2db84238b74e6f8c22d59fcf91b013

    • SHA256

      f90902518f3bbb078debe0a35915f858d6dfdd21a03878d2864295e408b02f28

    • SHA512

      59420dc4cb48d6fee6b58ee71113b1a49ad950a477d06ab83d518e6ea894436f9b0c232f02bd299d633be1b837954fc220b542f73bf65c195966a179454c1635

    • SSDEEP

      24576:spM5863IGfTAVpalBXUfMxVVtes12FxwojKr98YGeGG9i:spQLYkTYp6BXUkxVVChjHZQs

    • 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.

    • 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