General

  • Target

    f025d3580288f938e2fabb4ee186c4bd318aaace33cf54ff11e1aec088ecf24c

  • Size

    2.1MB

  • Sample

    240522-a7lpksfd2t

  • MD5

    5869684dd1c4290217e92a9b05c522cd

  • SHA1

    b0f0fe99956affc2b9f16191de0e02d4ec80c9b6

  • SHA256

    f025d3580288f938e2fabb4ee186c4bd318aaace33cf54ff11e1aec088ecf24c

  • SHA512

    87c93a261b3e5fc89189f3c98967efa2e66a1efd9391407874f1c6746f451143fc578c8d7cdc8ac28ba5737122a38f69af03720173d620f13a201df39ee75f14

  • SSDEEP

    49152:N6uDuaS9refa4JtTF+TxMoxc1TU+j+dAzGwlrh:N6uKb9f4tIuoITsdZ

Malware Config

Extracted

Family

stealc

rc4.plain

Targets

    • Target

      f025d3580288f938e2fabb4ee186c4bd318aaace33cf54ff11e1aec088ecf24c

    • Size

      2.1MB

    • MD5

      5869684dd1c4290217e92a9b05c522cd

    • SHA1

      b0f0fe99956affc2b9f16191de0e02d4ec80c9b6

    • SHA256

      f025d3580288f938e2fabb4ee186c4bd318aaace33cf54ff11e1aec088ecf24c

    • SHA512

      87c93a261b3e5fc89189f3c98967efa2e66a1efd9391407874f1c6746f451143fc578c8d7cdc8ac28ba5737122a38f69af03720173d620f13a201df39ee75f14

    • SSDEEP

      49152:N6uDuaS9refa4JtTF+TxMoxc1TU+j+dAzGwlrh:N6uKb9f4tIuoITsdZ

    • 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