General

  • Target

    216de39eee29060012190acb31a641e3d2b510e461122d15f50e2498c0a00713

  • Size

    2.2MB

  • Sample

    240629-x2z2catfng

  • MD5

    b1e4f1613a07e4eaab983407e5c0b7a5

  • SHA1

    0ab789909bf0ce77325238ad663788a16bf57790

  • SHA256

    216de39eee29060012190acb31a641e3d2b510e461122d15f50e2498c0a00713

  • SHA512

    dfb28e31f6feca89b9ddf1939573fec71f21f8e86fdc42cd28c3918d20feb94cebcd7bf4bd7b196c172b13ec72759a8a912680ee2b806f8ed9074c4205282777

  • SSDEEP

    49152:qpjNvr9ySAOmw4tHHO+SASagXkJr4MDkUwm:qpjNp7p4tHH8n5A

Malware Config

Extracted

Family

vidar

C2

https://t.me/g067n

https://steamcommunity.com/profiles/76561199707802586

Attributes
  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:129.0) Gecko/20100101 Firefox/129.0

Targets

    • Target

      216de39eee29060012190acb31a641e3d2b510e461122d15f50e2498c0a00713

    • Size

      2.2MB

    • MD5

      b1e4f1613a07e4eaab983407e5c0b7a5

    • SHA1

      0ab789909bf0ce77325238ad663788a16bf57790

    • SHA256

      216de39eee29060012190acb31a641e3d2b510e461122d15f50e2498c0a00713

    • SHA512

      dfb28e31f6feca89b9ddf1939573fec71f21f8e86fdc42cd28c3918d20feb94cebcd7bf4bd7b196c172b13ec72759a8a912680ee2b806f8ed9074c4205282777

    • SSDEEP

      49152:qpjNvr9ySAOmw4tHHO+SASagXkJr4MDkUwm:qpjNp7p4tHH8n5A

    • Detect Vidar Stealer

    • Stealc

      Stealc is an infostealer written in C++.

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Detect binaries embedding considerable number of MFA browser extension IDs.

    • Detect binaries embedding considerable number of cryptocurrency wallet browser extension IDs.

    • Detects Windows executables referencing non-Windows User-Agents

    • Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.

    • 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