General

  • Target
    f1e89356f7a21887e4b5db1160717abf
  • Size 581KB
  • Sample210730-w7ctrj2r2s
  • SHA256 4227ee74e68b799efeb3613493f4814a81e16fec32c88bcc3fdcc7eae35b60bc
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • vidar

Version
  • 39.8

Botnet
  • 921

C2
  • https://xeronxikxxx.tumblr.com/

Attributes
  • profile_id

    921

Targets

    • Target
      f1e89356f7a21887e4b5db1160717abf
    • Size 581KB
    • SHA256 4227ee74e68b799efeb3613493f4814a81e16fec32c88bcc3fdcc7eae35b60bc
    • 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 Vidar/Arkei Stealer Client Data Upload

    • 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