General

  • Target
    FRAUD NOTIFICATION 35738-59.doc
  • Size 2.6MB
  • Sample201222-d1pdf2pc1s
  • SHA256 341fecc8089d07c5ddfdfb4925b3243681723294dc9fb211c5d5f14441ccee85
  • MD5 SHA1 SHA512

Malware Config

Targets

    • Target
      FRAUD NOTIFICATION 35738-59.doc
    • Size 2.6MB
    • SHA256 341fecc8089d07c5ddfdfb4925b3243681723294dc9fb211c5d5f14441ccee85
    • MD5 SHA1 SHA512
    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Blocklisted process makes network request

    • Executes dropped EXE

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

    • Loads dropped DLL

    • Reads user/profile data of local email clients

      Email clients store some user data on disk where infostealers will often target it.

    • 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.

    • JavaScript code in executable

    • Legitimate hosting services abused for malware hosting/C2

    • Looks up external IP address via web service

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

MITRE ATT&CK Enterprise v6

Tasks