General

  • Target
    www.mxh4h.com_sample.bin
  • Size 3.5MB
  • Sample261024-vbterscy3k
  • SHA256 7b22bc0a962f6adce6c52725f767376cdc313342701541bbe8735a78bcaef0c6
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Targets

    • Target
      install.2.0.02.exe
    • Size 38.9MB
    • SHA256 c5f8fc58c1ba8aaad08fc864ee0d1e44f2e26ccc036003e64551d26d4d892fa2
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Windows security bypass

    • 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

    • 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.

    • 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

MITRE ATT&CK Enterprise v16

Tasks