General

  • Target

    d498a0172719f18772c0da4909e207b591f48f9f8565e1555c21fddb25523c42

  • Size

    2.5MB

  • Sample

    240607-29vh2sdh6v

  • MD5

    5121549fc8a8f32c3532a66ff9b1ca11

  • SHA1

    262bd576350d50e3692b15abbcab4171426326bc

  • SHA256

    d498a0172719f18772c0da4909e207b591f48f9f8565e1555c21fddb25523c42

  • SHA512

    a8b630cf952be78816608a72c8998f4d5b63d8f49d675dd0046ee3d7e3e351f9702595ecb8d3b716877f8650b088450c67f29ef8c95160334b6000f17cfe6ddf

  • SSDEEP

    49152:Zcm4081qpZBUbHEmJysEAQACR07Q3byRD8aXY658:ZcmmqvBUbHtQfAw07QLyLn

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

      d498a0172719f18772c0da4909e207b591f48f9f8565e1555c21fddb25523c42

    • Size

      2.5MB

    • MD5

      5121549fc8a8f32c3532a66ff9b1ca11

    • SHA1

      262bd576350d50e3692b15abbcab4171426326bc

    • SHA256

      d498a0172719f18772c0da4909e207b591f48f9f8565e1555c21fddb25523c42

    • SHA512

      a8b630cf952be78816608a72c8998f4d5b63d8f49d675dd0046ee3d7e3e351f9702595ecb8d3b716877f8650b088450c67f29ef8c95160334b6000f17cfe6ddf

    • SSDEEP

      49152:Zcm4081qpZBUbHEmJysEAQACR07Q3byRD8aXY658:ZcmmqvBUbHtQfAw07QLyLn

    • 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