General

  • Target

    861d3b4691309a6e24138665a6c960e1fcba5229e049b10012064f3e450ce9ce

  • Size

    2.0MB

  • Sample

    240522-zxcrcsgg42

  • MD5

    14231efb0c56ea43b9f2ef328540f07a

  • SHA1

    0f358db9469597b5424385b30b52c9680d971fb4

  • SHA256

    861d3b4691309a6e24138665a6c960e1fcba5229e049b10012064f3e450ce9ce

  • SHA512

    c680bc5514fabe66cf9a916a787cfe7ac28299d98b8ffa9d046ee77919ae1068b12c2c82d48fed5752c951ccc43ca5ed90726b2aed7fa8706dc5eba685c77de8

  • SSDEEP

    49152:7QzHt472DwJtTF+TxMoxc1TU+j+dAzGwlrh:7QzHtatIuoITsdZ

Malware Config

Extracted

Family

stealc

rc4.plain

Targets

    • Target

      861d3b4691309a6e24138665a6c960e1fcba5229e049b10012064f3e450ce9ce

    • Size

      2.0MB

    • MD5

      14231efb0c56ea43b9f2ef328540f07a

    • SHA1

      0f358db9469597b5424385b30b52c9680d971fb4

    • SHA256

      861d3b4691309a6e24138665a6c960e1fcba5229e049b10012064f3e450ce9ce

    • SHA512

      c680bc5514fabe66cf9a916a787cfe7ac28299d98b8ffa9d046ee77919ae1068b12c2c82d48fed5752c951ccc43ca5ed90726b2aed7fa8706dc5eba685c77de8

    • SSDEEP

      49152:7QzHt472DwJtTF+TxMoxc1TU+j+dAzGwlrh:7QzHtatIuoITsdZ

    • 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 local email clients

      Email clients store some user data on disk where infostealers will often target it.

    • 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