General

  • Target

    f32075854584e6e2784bf131d04f6ae7a0b52bd2bdf1b21c42d8fe02ec40ab41

  • Size

    2.5MB

  • Sample

    240530-3nj1vsee61

  • MD5

    32159e89550f346a047fbbe29d27d3eb

  • SHA1

    34d032fe57ace34c825a3ebc5ebc35b3b6a6a034

  • SHA256

    f32075854584e6e2784bf131d04f6ae7a0b52bd2bdf1b21c42d8fe02ec40ab41

  • SHA512

    15c8ba72e331b2c0f240c044aaa73acba768e3ca8be1496058efaf384c128945ef9e343c9640bc68848d2719d7185535017a90f8c5bd4b0e7ce61b86c9e8bd3a

  • SSDEEP

    49152:+BX5/0mLBI1JVLJtTF+TxMoxc1TU+j+dAzGRX+:+BX5/0mAttIuoITsdZ

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

      f32075854584e6e2784bf131d04f6ae7a0b52bd2bdf1b21c42d8fe02ec40ab41

    • Size

      2.5MB

    • MD5

      32159e89550f346a047fbbe29d27d3eb

    • SHA1

      34d032fe57ace34c825a3ebc5ebc35b3b6a6a034

    • SHA256

      f32075854584e6e2784bf131d04f6ae7a0b52bd2bdf1b21c42d8fe02ec40ab41

    • SHA512

      15c8ba72e331b2c0f240c044aaa73acba768e3ca8be1496058efaf384c128945ef9e343c9640bc68848d2719d7185535017a90f8c5bd4b0e7ce61b86c9e8bd3a

    • SSDEEP

      49152:+BX5/0mLBI1JVLJtTF+TxMoxc1TU+j+dAzGRX+:+BX5/0mAttIuoITsdZ

    • 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