General

  • Target
    48a6907a27e4bd3a8d104ead6d5c41cb.exe
  • Size 2.2MB
  • Sample210621-3cylfdk4jx
  • SHA256 521294dfc8a64a5e31a33afab50041dab893d8b7837bb043e54bf2a9febf19c9
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • vidar

Version
  • 39.4

Botnet
  • 921

C2
  • https://sergeevih43.tumblr.com

Attributes
  • profile_id

    921

Targets

    • Target
      48a6907a27e4bd3a8d104ead6d5c41cb.exe
    • Size 2.2MB
    • SHA256 521294dfc8a64a5e31a33afab50041dab893d8b7837bb043e54bf2a9febf19c9
    • MD5 SHA1 SHA512
    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • 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