General

  • Target
    6994051a1091c2a5a64fb4b330806320.exe
  • Size 1.9MB
  • Sample211121-tf782sebal
  • SHA256 d1061d18dc4ceceeba9947137e84e68d689e7befb6f038b467a64c474d0c51d0
  • 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
      6994051a1091c2a5a64fb4b330806320.exe
    • Size 1.9MB
    • SHA256 d1061d18dc4ceceeba9947137e84e68d689e7befb6f038b467a64c474d0c51d0
    • 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

    • Deletes itself

    • 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