General

  • Target

    5f439891ef7e47e8c0036d0501c68cea241ad6470cbff0231f83d16c13a228b5

  • Size

    1.9MB

  • Sample

    220625-dntgvsebf2

  • MD5

    5885ff4dabd6c5f62a8c3a94dcbacd32

  • SHA1

    312979362ea97cdcb31dca43bafcc964ab08c77a

  • SHA256

    5f439891ef7e47e8c0036d0501c68cea241ad6470cbff0231f83d16c13a228b5

  • SHA512

    96b72f75d7726bb24ee3b9c0961f7034f96d078049a52edc494b1280f449f93a9e481288e02693df5565de472302422cd74c7cc3876d8b0c8d94a6b4d6e54aba

Malware Config

Extracted

Family

vidar

Version

14

Botnet

223

C2

http://klegrandlichgrum.com/

Attributes
  • profile_id

    223

Targets

    • Target

      5f439891ef7e47e8c0036d0501c68cea241ad6470cbff0231f83d16c13a228b5

    • Size

      1.9MB

    • MD5

      5885ff4dabd6c5f62a8c3a94dcbacd32

    • SHA1

      312979362ea97cdcb31dca43bafcc964ab08c77a

    • SHA256

      5f439891ef7e47e8c0036d0501c68cea241ad6470cbff0231f83d16c13a228b5

    • SHA512

      96b72f75d7726bb24ee3b9c0961f7034f96d078049a52edc494b1280f449f93a9e481288e02693df5565de472302422cd74c7cc3876d8b0c8d94a6b4d6e54aba

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer HTTP POST Pattern

      suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer HTTP POST Pattern

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

    • Vidar Stealer

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Identifies Wine through registry keys

      Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

    • Reads local data of messenger clients

      Infostealers often target stored data of messaging applications, which can include saved credentials and account information.

    • Reads user/profile data of local email clients

      Email clients store some user data on disk where infostealers will often target it.

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Accesses 2FA software files, possible credential harvesting

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Checks whether UAC is enabled

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Virtualization/Sandbox Evasion

2
T1497

Credential Access

Credentials in Files

4
T1081

Discovery

Query Registry

5
T1012

Virtualization/Sandbox Evasion

2
T1497

System Information Discovery

3
T1082

Collection

Data from Local System

4
T1005

Tasks