General

  • Target

    2749a4e54c346168aa7311040752c157a5cafb50bedeaf1d915492546d00b570

  • Size

    1.6MB

  • Sample

    240612-eb2hdazfmf

  • MD5

    4d3ed703c9f64404918528fe1b173228

  • SHA1

    3a5745d7ab6004981c83e9b6432205ce1c85faa7

  • SHA256

    2749a4e54c346168aa7311040752c157a5cafb50bedeaf1d915492546d00b570

  • SHA512

    708a4ef9c4a9d862b3c90200c8ec2342eaa5ba397176e938caaee33420d6f3071c5d5313d5772a0b1c6c1fc8440e4cf71d6f9c834b195765f4dbc7ebf3082817

  • SSDEEP

    24576:spM5863IGfTAVpalBgUfMxVVtes12FxwojKr98YGeGG9i:spQLYkTYp6BgUkxVVChjHZQs

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

      2749a4e54c346168aa7311040752c157a5cafb50bedeaf1d915492546d00b570

    • Size

      1.6MB

    • MD5

      4d3ed703c9f64404918528fe1b173228

    • SHA1

      3a5745d7ab6004981c83e9b6432205ce1c85faa7

    • SHA256

      2749a4e54c346168aa7311040752c157a5cafb50bedeaf1d915492546d00b570

    • SHA512

      708a4ef9c4a9d862b3c90200c8ec2342eaa5ba397176e938caaee33420d6f3071c5d5313d5772a0b1c6c1fc8440e4cf71d6f9c834b195765f4dbc7ebf3082817

    • SSDEEP

      24576:spM5863IGfTAVpalBgUfMxVVtes12FxwojKr98YGeGG9i:spQLYkTYp6BgUkxVVChjHZQs

    • 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 Matrix ATT&CK v13

Credential Access

Unsecured Credentials

3
T1552

Credentials In Files

3
T1552.001

Discovery

Query Registry

3
T1012

System Information Discovery

3
T1082

Collection

Data from Local System

3
T1005

Tasks