General

  • Target

    q3na5Mc.exe

  • Size

    1.7MB

  • Sample

    250301-sdvphatwet

  • MD5

    b12613919e61cc2fcff6eb82ceab1d20

  • SHA1

    88afc6a674c6f547f0a3289c7eaa78c5dfd3ede2

  • SHA256

    9dd603c9bbf8690dc426ff5b50911ae982a79de4f47d96878f4debd5180e754b

  • SHA512

    27b2ccda40ef1876a3d71fa69062beccbe898522729ed6293fb583d48ed24aef061ed8a1f4ba389da26a66b1caca1c997cb6aaa169c8943eb14c08f7196e2a78

  • SSDEEP

    49152:LCjSx8MI/SngXvJlWF+7x9csnAFwFSMLL:2+TIE4lWF+vnAiJL

Malware Config

Targets

    • Target

      q3na5Mc.exe

    • Size

      1.7MB

    • MD5

      b12613919e61cc2fcff6eb82ceab1d20

    • SHA1

      88afc6a674c6f547f0a3289c7eaa78c5dfd3ede2

    • SHA256

      9dd603c9bbf8690dc426ff5b50911ae982a79de4f47d96878f4debd5180e754b

    • SHA512

      27b2ccda40ef1876a3d71fa69062beccbe898522729ed6293fb583d48ed24aef061ed8a1f4ba389da26a66b1caca1c997cb6aaa169c8943eb14c08f7196e2a78

    • SSDEEP

      49152:LCjSx8MI/SngXvJlWF+7x9csnAFwFSMLL:2+TIE4lWF+vnAiJL

    • Detect Vidar Stealer

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Vidar family

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

    • Uses browser remote debugging

      Can be used control the browser and steal sensitive information such as credentials and session cookies.

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Checks computer location settings

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

    • Identifies Wine through registry keys

      Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

    • 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.

    • Unsecured Credentials: Credentials In Files

      Steal credentials from unsecured files.

    • 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 NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v15

Tasks