General

  • Target

    5562ddbaade344b4ea6d6f312aec55cd9bfc3dfbf160950632098fde47c9e50e

  • Size

    1.6MB

  • Sample

    240612-dy98cszcqj

  • MD5

    ff635078bc78871bc95188fd936a11ce

  • SHA1

    67b095fb71a029a733cbe2156503aa3e7ba40124

  • SHA256

    5562ddbaade344b4ea6d6f312aec55cd9bfc3dfbf160950632098fde47c9e50e

  • SHA512

    e1b0f349be2c7d3169d0771bdb5a435651435fa0f40229d2e64f8eb62b0fcb5a6e13b60c3d29be29e79c48d2c2d7cea7721805af118a08f4c02a488298579e33

  • SSDEEP

    24576:spM5863IGfTAVpalB7UfMxVVtes12FxwojKr98YGeGG9i:spQLYkTYp6B7UkxVVChjHZQs

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

      5562ddbaade344b4ea6d6f312aec55cd9bfc3dfbf160950632098fde47c9e50e

    • Size

      1.6MB

    • MD5

      ff635078bc78871bc95188fd936a11ce

    • SHA1

      67b095fb71a029a733cbe2156503aa3e7ba40124

    • SHA256

      5562ddbaade344b4ea6d6f312aec55cd9bfc3dfbf160950632098fde47c9e50e

    • SHA512

      e1b0f349be2c7d3169d0771bdb5a435651435fa0f40229d2e64f8eb62b0fcb5a6e13b60c3d29be29e79c48d2c2d7cea7721805af118a08f4c02a488298579e33

    • SSDEEP

      24576:spM5863IGfTAVpalB7UfMxVVtes12FxwojKr98YGeGG9i:spQLYkTYp6B7UkxVVChjHZQs

    • 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 Matrix ATT&CK v13

Credential Access

Unsecured Credentials

3
T1552

Credentials In Files

3
T1552.001

Discovery

Query Registry

3
T1012

System Information Discovery

3
T1082

Collection

Data from Local System

3
T1005

Tasks