General

  • Target

    f57b52fa896934991ac8e292334935810edc14265b6989a79ce353c4b7d8ac71

  • Size

    2.2MB

  • Sample

    240630-gfm7naxfjl

  • MD5

    5cd0ddfbd710a103e60caa7477b5c32f

  • SHA1

    4fb0f1a9b95a1767a3332fa604c188542fbb7982

  • SHA256

    f57b52fa896934991ac8e292334935810edc14265b6989a79ce353c4b7d8ac71

  • SHA512

    5d28092a299528c49843345294ebdebf41e14a3dbbde73bd321c1d19f6717e3addbbdd37538069c7c1bf36bc19fc2cc9dc6a412150d7b4eb2c4d707acdf5cadd

  • SSDEEP

    49152:qpjNvr9ySAOmw4NHHO+SASagXkJr4MDkUwm:qpjNp7p4NHH8n5A

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

      f57b52fa896934991ac8e292334935810edc14265b6989a79ce353c4b7d8ac71

    • Size

      2.2MB

    • MD5

      5cd0ddfbd710a103e60caa7477b5c32f

    • SHA1

      4fb0f1a9b95a1767a3332fa604c188542fbb7982

    • SHA256

      f57b52fa896934991ac8e292334935810edc14265b6989a79ce353c4b7d8ac71

    • SHA512

      5d28092a299528c49843345294ebdebf41e14a3dbbde73bd321c1d19f6717e3addbbdd37538069c7c1bf36bc19fc2cc9dc6a412150d7b4eb2c4d707acdf5cadd

    • SSDEEP

      49152:qpjNvr9ySAOmw4NHHO+SASagXkJr4MDkUwm:qpjNp7p4NHH8n5A

    • 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