General

  • Target

    45c9f4972cd81d0eb03ebfc6a7e1f3d5b6be70a7be4bb31b0baa3c43491eb163

  • Size

    1.8MB

  • Sample

    240603-lnzb4sbf58

  • MD5

    570928696721e1a33f784109cc578f82

  • SHA1

    a617c1e9f11086fe970e00c617f0b29470ef06c2

  • SHA256

    45c9f4972cd81d0eb03ebfc6a7e1f3d5b6be70a7be4bb31b0baa3c43491eb163

  • SHA512

    ddd9c28a9cdaf1ebc8eefd4424fdd8a5ce36782d895b62083c692475a17682d48f618d5613a77544f566f0952b35b023aa48d8f02ac2cd901e2c85365f8e2495

  • SSDEEP

    24576:W7YfUB7F1931tbjYaOV+rEfv0xwT3zxNOt4XigDSCuptNEynEsqqfD:W75B7FDFtbjYa8aesY3Ot4N7G/

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

      45c9f4972cd81d0eb03ebfc6a7e1f3d5b6be70a7be4bb31b0baa3c43491eb163

    • Size

      1.8MB

    • MD5

      570928696721e1a33f784109cc578f82

    • SHA1

      a617c1e9f11086fe970e00c617f0b29470ef06c2

    • SHA256

      45c9f4972cd81d0eb03ebfc6a7e1f3d5b6be70a7be4bb31b0baa3c43491eb163

    • SHA512

      ddd9c28a9cdaf1ebc8eefd4424fdd8a5ce36782d895b62083c692475a17682d48f618d5613a77544f566f0952b35b023aa48d8f02ac2cd901e2c85365f8e2495

    • SSDEEP

      24576:W7YfUB7F1931tbjYaOV+rEfv0xwT3zxNOt4XigDSCuptNEynEsqqfD:W75B7FDFtbjYa8aesY3Ot4N7G/

    • 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

    • 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