General

  • Target

    8149ba1f710102ff2383263c9f80d5a7c06352ee3a24d1a7beb9d702dd423ec5

  • Size

    770KB

  • Sample

    210721-cd7qys6zb6

  • MD5

    e481024a7f235afb0aa19d58cb390226

  • SHA1

    72e6253d78f53e123dd3f99a5d2aee225ad470c2

  • SHA256

    8149ba1f710102ff2383263c9f80d5a7c06352ee3a24d1a7beb9d702dd423ec5

  • SHA512

    5945ccc61196cd6a0ea41647dd1587190184a8662c7265a812c32a22477205aced97d8a356072dc9a19747f43cd8fe5d8d3d10a885076c54e5b78e7c762648f0

Malware Config

Extracted

Family

vidar

Version

39.6

Botnet

517

C2

https://sslamlssa1.tumblr.com/

Attributes
  • profile_id

    517

Targets

    • Target

      8149ba1f710102ff2383263c9f80d5a7c06352ee3a24d1a7beb9d702dd423ec5

    • Size

      770KB

    • MD5

      e481024a7f235afb0aa19d58cb390226

    • SHA1

      72e6253d78f53e123dd3f99a5d2aee225ad470c2

    • SHA256

      8149ba1f710102ff2383263c9f80d5a7c06352ee3a24d1a7beb9d702dd423ec5

    • SHA512

      5945ccc61196cd6a0ea41647dd1587190184a8662c7265a812c32a22477205aced97d8a356072dc9a19747f43cd8fe5d8d3d10a885076c54e5b78e7c762648f0

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Vidar Stealer

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Loads dropped DLL

    • Modifies file permissions

    • 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

    • Adds Run key to start application

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks