General

  • Target

    a8294d584cdc17eca0b2d8c04238b8cc0cb39ec21989fd43402db44ba6a69795

  • Size

    1.6MB

  • Sample

    240611-qzwgtayera

  • MD5

    c2c57db63cc6eb0077b1cc73e006aebd

  • SHA1

    e035ccb23bd8d593dd8d5d119894f79528a0b280

  • SHA256

    a8294d584cdc17eca0b2d8c04238b8cc0cb39ec21989fd43402db44ba6a69795

  • SHA512

    3850a31f3645e53b9ec29d2f012567085279a83689239dae55ed8346f0b7be3d2153546e5d971dd7c961f423e25b6666a50f9e457453efa8e515521c6c5ec780

  • SSDEEP

    24576:spM5863IGfTAVpalBIUfMxVVtes12FxwojKr98YGeGG9i:spQLYkTYp6BIUkxVVChjHZQs

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

      a8294d584cdc17eca0b2d8c04238b8cc0cb39ec21989fd43402db44ba6a69795

    • Size

      1.6MB

    • MD5

      c2c57db63cc6eb0077b1cc73e006aebd

    • SHA1

      e035ccb23bd8d593dd8d5d119894f79528a0b280

    • SHA256

      a8294d584cdc17eca0b2d8c04238b8cc0cb39ec21989fd43402db44ba6a69795

    • SHA512

      3850a31f3645e53b9ec29d2f012567085279a83689239dae55ed8346f0b7be3d2153546e5d971dd7c961f423e25b6666a50f9e457453efa8e515521c6c5ec780

    • SSDEEP

      24576:spM5863IGfTAVpalBIUfMxVVtes12FxwojKr98YGeGG9i:spQLYkTYp6BIUkxVVChjHZQs

    • 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.

    • 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

2
T1552

Credentials In Files

2
T1552.001

Discovery

Query Registry

3
T1012

System Information Discovery

3
T1082

Collection

Data from Local System

2
T1005

Tasks