General

  • Target
    build.exe
  • Size 831KB
  • Sample210505-vce8dr9192
  • SHA256 3763170476b8a4c3cb592cbea6c4471ba2ea2463db9f7839fda502ef0a06b092
  • MD5 SHA1 SHA512

Malware Config

Targets

    • Target
      build.exe
    • Size 831KB
    • SHA256 3763170476b8a4c3cb592cbea6c4471ba2ea2463db9f7839fda502ef0a06b092
    • MD5 SHA1 SHA512
    • Deletes Windows Defender Definitions

      Uses mpcmdrun utility to delete all AV definitions.

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Disables Task Manager via registry modification

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Executes dropped EXE

    • Loads dropped DLL

    • Modifies file permissions

    • Reads local data of messenger clients

      Infostealers often target stored data of messaging applications, which can include saved credentials and account information.

    • 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.

MITRE ATT&CK Enterprise v6

Tasks