General

  • Target

    af3971a6b6edbbd9e0f1bd62617c639a172fffb38829ad8a8ef32bc4f990d7c8

  • Size

    2.2MB

  • Sample

    240630-dq1nysshrh

  • MD5

    678d6d3e6fa7dd36e118cbd09a294f9c

  • SHA1

    5d1c480b78136427b45a43d5adb68cd8ae5088de

  • SHA256

    af3971a6b6edbbd9e0f1bd62617c639a172fffb38829ad8a8ef32bc4f990d7c8

  • SHA512

    c38ff26a59a49f8a4c6bfb96e05e28b2486269a5049179dacc1e3abecd7659db6efd36f5d2e5946e56baa57a58a8d101cf33d69aa4f1f959e0b2a28ea8d547b6

  • SSDEEP

    49152:qpjNvr9ySAOmw4lHHO+SASagXkJr4MDkUwm:qpjNp7p4lHH8n5A

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

      af3971a6b6edbbd9e0f1bd62617c639a172fffb38829ad8a8ef32bc4f990d7c8

    • Size

      2.2MB

    • MD5

      678d6d3e6fa7dd36e118cbd09a294f9c

    • SHA1

      5d1c480b78136427b45a43d5adb68cd8ae5088de

    • SHA256

      af3971a6b6edbbd9e0f1bd62617c639a172fffb38829ad8a8ef32bc4f990d7c8

    • SHA512

      c38ff26a59a49f8a4c6bfb96e05e28b2486269a5049179dacc1e3abecd7659db6efd36f5d2e5946e56baa57a58a8d101cf33d69aa4f1f959e0b2a28ea8d547b6

    • SSDEEP

      49152:qpjNvr9ySAOmw4lHHO+SASagXkJr4MDkUwm:qpjNp7p4lHH8n5A

    • 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