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General

  • Target

    a94274589a8cfa6a6a964fcfa94abdfe07a332c5b3ed66cde697c44e542b9d23

  • Size

    2.6MB

  • Sample

    240528-v2thfsee36

  • MD5

    83396dd0c0190a6a1ce208a52eaf90b2

  • SHA1

    6c2fa5393827cc5a650c0dd70679cf1579aafc58

  • SHA256

    a94274589a8cfa6a6a964fcfa94abdfe07a332c5b3ed66cde697c44e542b9d23

  • SHA512

    57d15e90b10e79b500b3ea7a9a060514fcd13b9e1e594bac9f19909c7bc5ba164b569d68907653aaea07c711592e8f7ce104f192090bd07bb224410f6aa86f38

  • SSDEEP

    49152:XQzIzMiqCNwGJtTF+TxMoxc1TU+j+dAzGwlrh:XY598jtIuoITsdZ

Malware Config

Extracted

Family

stealc

rc4.plain

Extracted

Family

vidar

C2

https://steamcommunity.com/profiles/76561199689717899

https://t.me/copterwin

Attributes
  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:128.0) Gecko/20100101 Firefox/128.0

Targets

    • Target

      a94274589a8cfa6a6a964fcfa94abdfe07a332c5b3ed66cde697c44e542b9d23

    • Size

      2.6MB

    • MD5

      83396dd0c0190a6a1ce208a52eaf90b2

    • SHA1

      6c2fa5393827cc5a650c0dd70679cf1579aafc58

    • SHA256

      a94274589a8cfa6a6a964fcfa94abdfe07a332c5b3ed66cde697c44e542b9d23

    • SHA512

      57d15e90b10e79b500b3ea7a9a060514fcd13b9e1e594bac9f19909c7bc5ba164b569d68907653aaea07c711592e8f7ce104f192090bd07bb224410f6aa86f38

    • SSDEEP

      49152:XQzIzMiqCNwGJtTF+TxMoxc1TU+j+dAzGwlrh:XY598jtIuoITsdZ

    • 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