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General

  • Target

    4880a68e79bcf505f8341046ddab7ea94532a78a1cc872cad7264cf4534a1309

  • Size

    2.4MB

  • Sample

    240603-fyywfacg8z

  • MD5

    68824b9b61350c523f097e5e2f269027

  • SHA1

    a2b16be0ae9bef0d70a7af8f82b26ebf03375146

  • SHA256

    4880a68e79bcf505f8341046ddab7ea94532a78a1cc872cad7264cf4534a1309

  • SHA512

    b563e1636cf483fb8b605c4721c09647468cf8c7c1589af2f74dcd5e1a10208bd5d5910a71ccbf3a9abdd33723332cd8e47a8b9ac347b161f97f6a466f808a5e

  • SSDEEP

    49152:wQc81KnB/a/hNT/dtYa8aesY3Ot4N7G/:wDta/hNT/dtn0etD/

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

      4880a68e79bcf505f8341046ddab7ea94532a78a1cc872cad7264cf4534a1309

    • Size

      2.4MB

    • MD5

      68824b9b61350c523f097e5e2f269027

    • SHA1

      a2b16be0ae9bef0d70a7af8f82b26ebf03375146

    • SHA256

      4880a68e79bcf505f8341046ddab7ea94532a78a1cc872cad7264cf4534a1309

    • SHA512

      b563e1636cf483fb8b605c4721c09647468cf8c7c1589af2f74dcd5e1a10208bd5d5910a71ccbf3a9abdd33723332cd8e47a8b9ac347b161f97f6a466f808a5e

    • SSDEEP

      49152:wQc81KnB/a/hNT/dtYa8aesY3Ot4N7G/:wDta/hNT/dtn0etD/

    • 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