General

  • Target
    ce81939f138c0b4ed1b2e4ef76a042af.exe
  • Size 731KB
  • Sample210830-t2vyv65yq2
  • SHA256 b5ebaa343b2503597f1357226444b151f4e06f373fddf18e3c296cb386954b92
  • MD5 SHA1 SHA512

Malware Config

Targets

    • Target
      ce81939f138c0b4ed1b2e4ef76a042af.exe
    • Size 731KB
    • SHA256 b5ebaa343b2503597f1357226444b151f4e06f373fddf18e3c296cb386954b92
    • 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

    • suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer Data Exfil

      suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer Data Exfil

    • 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

    • 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 Enterprise v6

Tasks