General

  • Target

    b8fe6f4af9ba622c0c44f3a27a22490286765607641de05587dd77120b1066ed

  • Size

    2.4MB

  • Sample

    240603-gpa9fsfb44

  • MD5

    59b8561bf46ac1eb2f67d99c0b337816

  • SHA1

    a47df73f13734574ce1b2ad72172e62a5525ee6d

  • SHA256

    b8fe6f4af9ba622c0c44f3a27a22490286765607641de05587dd77120b1066ed

  • SHA512

    925241855ca2ce49ae3902ff9dbe455708160c33e65ee7d38bcdb0096be66ac5153c233ba67faf4f1a0220fe4085f54d597b124936ca219336e2fe39fe3eecfc

  • SSDEEP

    49152:wQc81KnB/a/hNT/d9Ya8aesY3Ot4N7G/:wDta/hNT/d9n0etD/

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

      b8fe6f4af9ba622c0c44f3a27a22490286765607641de05587dd77120b1066ed

    • Size

      2.4MB

    • MD5

      59b8561bf46ac1eb2f67d99c0b337816

    • SHA1

      a47df73f13734574ce1b2ad72172e62a5525ee6d

    • SHA256

      b8fe6f4af9ba622c0c44f3a27a22490286765607641de05587dd77120b1066ed

    • SHA512

      925241855ca2ce49ae3902ff9dbe455708160c33e65ee7d38bcdb0096be66ac5153c233ba67faf4f1a0220fe4085f54d597b124936ca219336e2fe39fe3eecfc

    • SSDEEP

      49152:wQc81KnB/a/hNT/d9Ya8aesY3Ot4N7G/:wDta/hNT/d9n0etD/

    • 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