General

  • Target
    308c3af9d49308ea263e70bc4f946fa0.exe
  • Size 1.5MB
  • Sample210804-dxd1bh3eqj
  • SHA256 bb9a6242991d0d9bf29011e503cb679537dda42fab5451869ce866b3dada19ca
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • vidar

Version
  • 39.9

Botnet
  • 921

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

Attributes
  • profile_id

    921

Targets

    • Target
      308c3af9d49308ea263e70bc4f946fa0.exe
    • Size 1.5MB
    • SHA256 bb9a6242991d0d9bf29011e503cb679537dda42fab5451869ce866b3dada19ca
    • 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