General

  • Target
    Ktama Crypter Server v2.0.1.exe
  • Size 3.7MB
  • Sample260709-ssd1ascx8q
  • SHA256 a71670e73cbe1ab76665d086c45cc1d8b602a145d9a43b5404b266f71c6e9767
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Targets

    • Target
      Ktama Crypter Server v2.0.1.exe
    • Size 3.7MB
    • SHA256 a71670e73cbe1ab76665d086c45cc1d8b602a145d9a43b5404b266f71c6e9767
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

    • 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.

    • Event Triggered Execution: Component Object Model Hijacking

      Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

    • Executes dropped EXE

    • Loads dropped DLL

    • Modifies system executable filetype association

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

    • 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.

    • Checks whether UAC is enabled

    • Checks system information in the registry

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

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v16

Tasks