General

  • Target

    927089abadef8b7365ff3b7a21bfe412950a8e04c5a7aa1e50d12725e079bf6c

  • Size

    2.2MB

  • Sample

    240629-b55kca1ekm

  • MD5

    b1d49aea921a8b939ba06ecc5af3e7b6

  • SHA1

    2bbc01f39f3923394e8cbb5604787fa31ae4d635

  • SHA256

    927089abadef8b7365ff3b7a21bfe412950a8e04c5a7aa1e50d12725e079bf6c

  • SHA512

    f3328310863793f9e98d7dca6600272490f07a1479882b32913e22819eecd596aab84062b3f38027e93a87ebffc4fb07c5dedb158258c1741cef829d3b40ac88

  • SSDEEP

    49152:qpjNvr9ySAOmw41HHO+SASagXkJr4MDkUwm:qpjNp7p41HH8n5A

Malware Config

Extracted

Family

vidar

C2

https://t.me/g067n

https://steamcommunity.com/profiles/76561199707802586

Attributes
  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:129.0) Gecko/20100101 Firefox/129.0

Targets

    • Target

      927089abadef8b7365ff3b7a21bfe412950a8e04c5a7aa1e50d12725e079bf6c

    • Size

      2.2MB

    • MD5

      b1d49aea921a8b939ba06ecc5af3e7b6

    • SHA1

      2bbc01f39f3923394e8cbb5604787fa31ae4d635

    • SHA256

      927089abadef8b7365ff3b7a21bfe412950a8e04c5a7aa1e50d12725e079bf6c

    • SHA512

      f3328310863793f9e98d7dca6600272490f07a1479882b32913e22819eecd596aab84062b3f38027e93a87ebffc4fb07c5dedb158258c1741cef829d3b40ac88

    • SSDEEP

      49152:qpjNvr9ySAOmw41HHO+SASagXkJr4MDkUwm:qpjNp7p41HH8n5A

    • 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