General

  • Target
    ff2afbff6da33f4170a20b676ce59198ad83c86a4cad3a2193f494cd52eeabd2
  • Size 3.3MB
  • Sample260813-ysw4rseq7t
  • SHA256 ff2afbff6da33f4170a20b676ce59198ad83c86a4cad3a2193f494cd52eeabd2
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Targets

    • Target
      install_sint017.exe
    • Size 40.7MB
    • SHA256 bc1a591e1ed8c56b64e103900b1c079a1847075e70da31a8206e7e9ac2fc42aa
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Windows security bypass

    • Command and Scripting Interpreter: PowerShell

      Run Powershell and hide display window.

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    • Drops file in Drivers directory

    • Modifies RDP port number used by Windows

    • Possible privilege escalation attempt

    • Checks computer location settings

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

    • Disables service(s)

    • Executes dropped EXE

    • Loads dropped DLL

    • Modifies file permissions

    • Adds Run key to start application

    • Indicator Removal: Clear Persistence

      Clear artifacts associated with previously established persistence like scheduletasks on a host.

    • Drops file in System32 directory

    • UPX packed file

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

MITRE ATT&CK Enterprise v16

Tasks