General

  • Target
    a4a9b253aa59a59c2040ad1dbe95c47a.exe
  • Size 672KB
  • Sample210920-hvzdxafhal
  • SHA256 95cc8eb2e2e0064a0788032bec3c3bdcbd4edef6b0952e071d5dac5b29f6e51f
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • vidar

Version
  • 40.7

Botnet
  • 1008

C2
  • https://petrenko96.tumblr.com/

Attributes
  • profile_id

    1008

Targets

    • Target
      a4a9b253aa59a59c2040ad1dbe95c47a.exe
    • Size 672KB
    • SHA256 95cc8eb2e2e0064a0788032bec3c3bdcbd4edef6b0952e071d5dac5b29f6e51f
    • 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.

MITRE ATT&CK Enterprise v6

Tasks