General

  • Target

    22f99ca892d49a2360950f6dcfb82fcd3a7581a99513bd21a7a319cdf156b342

  • Size

    2.4MB

  • Sample

    240603-fshx2ace5w

  • MD5

    50905fa589c0379dcd13c9c061b84062

  • SHA1

    e62d3a9a060c26d5eb750545a52720c170c4f16c

  • SHA256

    22f99ca892d49a2360950f6dcfb82fcd3a7581a99513bd21a7a319cdf156b342

  • SHA512

    3fe7e6a92efe13d77d4b874c73198318a3a8c3cec81bdef692edf4035bf9910e4aab097f25260105df2cf8575d9e044a624a52d9fe1cd57d38e05685fc1d58ac

  • SSDEEP

    49152:wQc81KnB/a/hNT/dtYa8aesY3Ot4N7G/:wDta/hNT/dtn0etD/

Malware Config

Extracted

Family

stealc

rc4.plain

Extracted

Family

vidar

C2

https://t.me/ta904ek

https://steamcommunity.com/profiles/76561199695752269

Attributes
  • user_agent

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

Targets

    • Target

      22f99ca892d49a2360950f6dcfb82fcd3a7581a99513bd21a7a319cdf156b342

    • Size

      2.4MB

    • MD5

      50905fa589c0379dcd13c9c061b84062

    • SHA1

      e62d3a9a060c26d5eb750545a52720c170c4f16c

    • SHA256

      22f99ca892d49a2360950f6dcfb82fcd3a7581a99513bd21a7a319cdf156b342

    • SHA512

      3fe7e6a92efe13d77d4b874c73198318a3a8c3cec81bdef692edf4035bf9910e4aab097f25260105df2cf8575d9e044a624a52d9fe1cd57d38e05685fc1d58ac

    • SSDEEP

      49152:wQc81KnB/a/hNT/dtYa8aesY3Ot4N7G/:wDta/hNT/dtn0etD/

    • Detect Vidar Stealer

    • Stealc

      Stealc is an infostealer written in C++.

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Loads dropped DLL

    • 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