General

  • Target

    17b253e0b0a7ee4b8375c634f6a698a790c42af3cb609ed84b697c7541793b7f

  • Size

    1.9MB

  • Sample

    220608-yvy15sfadk

  • MD5

    518c1fec7178e3bb17a3551b70b8a679

  • SHA1

    dd3254f79cd05b8267281bccd03e21cb2d9ec909

  • SHA256

    17b253e0b0a7ee4b8375c634f6a698a790c42af3cb609ed84b697c7541793b7f

  • SHA512

    b9f41c62fa2175feef3d170d60d07b9e5d0dd8d1a3efd2c944e5d6fc53d81eec98b4587afc52f80618789d3278d08e9335088061519943e0354b9ef42611d516

Malware Config

Extracted

Family

vidar

Version

13.8

Botnet

223

C2

http://cafalife.com/

Attributes
  • profile_id

    223

Targets

    • Target

      17b253e0b0a7ee4b8375c634f6a698a790c42af3cb609ed84b697c7541793b7f

    • Size

      1.9MB

    • MD5

      518c1fec7178e3bb17a3551b70b8a679

    • SHA1

      dd3254f79cd05b8267281bccd03e21cb2d9ec909

    • SHA256

      17b253e0b0a7ee4b8375c634f6a698a790c42af3cb609ed84b697c7541793b7f

    • SHA512

      b9f41c62fa2175feef3d170d60d07b9e5d0dd8d1a3efd2c944e5d6fc53d81eec98b4587afc52f80618789d3278d08e9335088061519943e0354b9ef42611d516

    • 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