Resubmissions

09/09/2026, 08:14

260909-j43ncstgjd7

28/12/2022, 15:16

221228-snf9vsaf838

General

  • Target
    utorrent_installer.exe
  • Size 1.7MB
  • Sample221228-snf9vsaf83
  • SHA256 9e3209a16bb311daf700198beb271f44269fca2150a5a7672144230d03efc075
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Targets

    • Target
      utorrent_installer.exe
    • Size 1.7MB
    • SHA256 9e3209a16bb311daf700198beb271f44269fca2150a5a7672144230d03efc075
    • MD5 SHA1 SHA512 SSDEEP
    • Downloads MZ/PE file

    • Executes dropped EXE

    • Registers COM server for autorun

    • Sets file execution options in registry

    • UPX packed file

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

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Identifies Wine through registry keys

      Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Adds Run key to start application

    • Checks for any installed AV software in registry

    • Checks installed software on the system

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

    • Writes to the Master Boot Record (MBR)

      Bootkits write to the MBR to gain persistence at a level below the operating system.

MITRE ATT&CK Enterprise v6

Tasks