General

  • Target

    fc16fb413e724e1062fa1834242b4e401a205f4e670e8160dea6009817504ef1

  • Size

    2.5MB

  • Sample

    240607-2xx4eaef92

  • MD5

    6853c792f9e49611166fad1423170e3a

  • SHA1

    f1ac017f194323b45c623f15d9f8e7177b8693f5

  • SHA256

    fc16fb413e724e1062fa1834242b4e401a205f4e670e8160dea6009817504ef1

  • SHA512

    1f5c7a1fee8d64a0bc24d58249a4b73d30b87d24932c9340c5650c5417df0a78839d1aa3695bdf05845b76e2ad6271117736d47f95ea28b202ba05a810ad4148

  • SSDEEP

    49152:Zcm4081qpZBUbHEmJtsEAQACR07Q3byRD8aXY658:ZcmmqvBUbHtDfAw07QLyLn

Malware Config

Extracted

Family

stealc

rc4.plain

Extracted

Family

vidar

C2

https://t.me/r8z0l

https://steamcommunity.com/profiles/76561199698764354

Attributes
  • user_agent

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

Targets

    • Target

      fc16fb413e724e1062fa1834242b4e401a205f4e670e8160dea6009817504ef1

    • Size

      2.5MB

    • MD5

      6853c792f9e49611166fad1423170e3a

    • SHA1

      f1ac017f194323b45c623f15d9f8e7177b8693f5

    • SHA256

      fc16fb413e724e1062fa1834242b4e401a205f4e670e8160dea6009817504ef1

    • SHA512

      1f5c7a1fee8d64a0bc24d58249a4b73d30b87d24932c9340c5650c5417df0a78839d1aa3695bdf05845b76e2ad6271117736d47f95ea28b202ba05a810ad4148

    • SSDEEP

      49152:Zcm4081qpZBUbHEmJtsEAQACR07Q3byRD8aXY658:ZcmmqvBUbHtDfAw07QLyLn

    • Detect Vidar Stealer

    • Stealc

      Stealc is an infostealer written in C++.

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Downloads MZ/PE file

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • 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