General

  • Target

    3df75a9f8892910a5afa7af4e6cca08b57fb29d6dab63ddb8b2cf1402f02efbf

  • Size

    2.0MB

  • Sample

    240522-3msllsdd7y

  • MD5

    7007b2bac4a019b2f3f4c691f9fe0841

  • SHA1

    8c172c309d909dfe4bf08c916b970fdb23fa2891

  • SHA256

    3df75a9f8892910a5afa7af4e6cca08b57fb29d6dab63ddb8b2cf1402f02efbf

  • SHA512

    b693f771f2e86c8b48de9d4d860c2b2fb244340bcfbd4c0c0abe2101333554eb6dd1b316ac831dcd83ae777e3f408eda39cb1ec0d1939520ff727517e0ecdb93

  • SSDEEP

    49152:7QzHt472DWJtTF+TxMoxc1TU+j+dAzGwlrh:7QzHtUtIuoITsdZ

Malware Config

Extracted

Family

stealc

rc4.plain

Targets

    • Target

      3df75a9f8892910a5afa7af4e6cca08b57fb29d6dab63ddb8b2cf1402f02efbf

    • Size

      2.0MB

    • MD5

      7007b2bac4a019b2f3f4c691f9fe0841

    • SHA1

      8c172c309d909dfe4bf08c916b970fdb23fa2891

    • SHA256

      3df75a9f8892910a5afa7af4e6cca08b57fb29d6dab63ddb8b2cf1402f02efbf

    • SHA512

      b693f771f2e86c8b48de9d4d860c2b2fb244340bcfbd4c0c0abe2101333554eb6dd1b316ac831dcd83ae777e3f408eda39cb1ec0d1939520ff727517e0ecdb93

    • SSDEEP

      49152:7QzHt472DWJtTF+TxMoxc1TU+j+dAzGwlrh:7QzHtUtIuoITsdZ

    • 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