General

  • Target

    1b3f990d26ed6121066761d6d0bae20cc69c97dda48a5e11c11c34cef8d47f65

  • Size

    2.5MB

  • Sample

    240607-1yp9hsdc6z

  • MD5

    bec590998921e7585e8164a640520558

  • SHA1

    2b4352338ecaa75ede39d9cceae8d461db5ac0d3

  • SHA256

    1b3f990d26ed6121066761d6d0bae20cc69c97dda48a5e11c11c34cef8d47f65

  • SHA512

    091689c98448565278c4fcf160c37341aa7ee5dbe00a6f855a2500f83135f5ba458be4fcfab95c591eeb74a31524b0d1080111f2fd90f773486b829dfd982cf7

  • SSDEEP

    49152:Zcm4081qpZBUbHEmJmsEAQACR07Q3byRD8aXY658:ZcmmqvBUbHtQfAw07QLyLn

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

      1b3f990d26ed6121066761d6d0bae20cc69c97dda48a5e11c11c34cef8d47f65

    • Size

      2.5MB

    • MD5

      bec590998921e7585e8164a640520558

    • SHA1

      2b4352338ecaa75ede39d9cceae8d461db5ac0d3

    • SHA256

      1b3f990d26ed6121066761d6d0bae20cc69c97dda48a5e11c11c34cef8d47f65

    • SHA512

      091689c98448565278c4fcf160c37341aa7ee5dbe00a6f855a2500f83135f5ba458be4fcfab95c591eeb74a31524b0d1080111f2fd90f773486b829dfd982cf7

    • SSDEEP

      49152:Zcm4081qpZBUbHEmJmsEAQACR07Q3byRD8aXY658:ZcmmqvBUbHtQfAw07QLyLn

    • 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