General

  • Target

    69c8cca4b1cd3dbae8f45b32fcd93a58c816d31834545456859a3f9fb1bb4ed3

  • Size

    2.2MB

  • Sample

    240630-a3t56a1arc

  • MD5

    6799e2017499fb3f3b9cdfc27d88dfe3

  • SHA1

    f125334182fae750d4fd9a683c49237c6c5de1d2

  • SHA256

    69c8cca4b1cd3dbae8f45b32fcd93a58c816d31834545456859a3f9fb1bb4ed3

  • SHA512

    3e4d9bc67888fc1f3bbbca140efe95b1e845a5ee323d1fc9d21bd14ae411f2175eb8cd8a15671d31420703d0865f1bd68927726e61781bccdaab943c307358a3

  • SSDEEP

    49152:qpjNvr9ySAOmw4dHHO+SASagXkJr4MDkUwm:qpjNp7p4dHH8n5A

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

      69c8cca4b1cd3dbae8f45b32fcd93a58c816d31834545456859a3f9fb1bb4ed3

    • Size

      2.2MB

    • MD5

      6799e2017499fb3f3b9cdfc27d88dfe3

    • SHA1

      f125334182fae750d4fd9a683c49237c6c5de1d2

    • SHA256

      69c8cca4b1cd3dbae8f45b32fcd93a58c816d31834545456859a3f9fb1bb4ed3

    • SHA512

      3e4d9bc67888fc1f3bbbca140efe95b1e845a5ee323d1fc9d21bd14ae411f2175eb8cd8a15671d31420703d0865f1bd68927726e61781bccdaab943c307358a3

    • SSDEEP

      49152:qpjNvr9ySAOmw4dHHO+SASagXkJr4MDkUwm:qpjNp7p4dHH8n5A

    • 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