General

  • Target
    9dbeccbbcd59bd80f7e9a01878e334af6df9b767298eb029f5cb82b1283f51d3
  • Size 2.2MB
  • Sample211117-lb4q3aehak
  • SHA256 9dbeccbbcd59bd80f7e9a01878e334af6df9b767298eb029f5cb82b1283f51d3
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • vidar

Version
  • 48.6

Botnet
  • 869

C2
  • https://mastodon.online/@valhalla

  • https://koyu.space/@valhalla

Attributes
  • profile_id

    869

Targets

    • Target
      9dbeccbbcd59bd80f7e9a01878e334af6df9b767298eb029f5cb82b1283f51d3
    • Size 2.2MB
    • SHA256 9dbeccbbcd59bd80f7e9a01878e334af6df9b767298eb029f5cb82b1283f51d3
    • MD5 SHA1 SHA512
    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)

      suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)

    • suricata: ET MALWARE Vidar/Arkei Stealer Client Data Upload

      suricata: ET MALWARE Vidar/Arkei Stealer Client Data Upload

    • Vidar Stealer

    • Downloads MZ/PE file

    • Loads dropped DLL

    • 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.

MITRE ATT&CK Enterprise v6

Tasks