General

  • Target

    3a91ee656666974789b7a9a30c0149dc1ea04f18026a81b80945044b0527cdad

  • Size

    1.7MB

  • Sample

    240611-echrnataje

  • MD5

    c65af504215094795186f3defb936a92

  • SHA1

    9a9058819b72233c62bb3bcd582e257cbc3033a0

  • SHA256

    3a91ee656666974789b7a9a30c0149dc1ea04f18026a81b80945044b0527cdad

  • SHA512

    e9f1a5b746a480303761a5448682006277268b6d7cef0038d471f74d1a71b423f2a45167181250527d12b4f97567d3eb4c482ca5eead2643d8ca77969110d031

  • SSDEEP

    24576:JoZYQkmdrf+wUfMxVVtes12FxwojKr98YGeGG9iH:JPYxtUkxVVChjHZQsH

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

      3a91ee656666974789b7a9a30c0149dc1ea04f18026a81b80945044b0527cdad

    • Size

      1.7MB

    • MD5

      c65af504215094795186f3defb936a92

    • SHA1

      9a9058819b72233c62bb3bcd582e257cbc3033a0

    • SHA256

      3a91ee656666974789b7a9a30c0149dc1ea04f18026a81b80945044b0527cdad

    • SHA512

      e9f1a5b746a480303761a5448682006277268b6d7cef0038d471f74d1a71b423f2a45167181250527d12b4f97567d3eb4c482ca5eead2643d8ca77969110d031

    • SSDEEP

      24576:JoZYQkmdrf+wUfMxVVtes12FxwojKr98YGeGG9iH:JPYxtUkxVVChjHZQsH

    • 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