General

  • Target
    vmtr.nl.exe
  • Size 51KB
  • Sample260622-jnmbfaas2l
  • SHA256 1d08d57ff2c32a327f845b254e48bd3b27838c8e3ea38193826dba1ba3118f11
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Targets

    • Target
      vmtr.nl.exe
    • Size 51KB
    • SHA256 1d08d57ff2c32a327f845b254e48bd3b27838c8e3ea38193826dba1ba3118f11
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Contains code to disable Windows Defender

      A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

    • Modifies Windows Defender DisableAntiSpyware settings

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

    • Command and Scripting Interpreter: PowerShell

      Run Powershell and hide display window.

    • Disables RegEdit via registry modification

    • Disables Task Manager via registry modification

    • Drops file in Drivers directory

    • Modifies Windows Firewall

    • Checks computer location settings

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

    • Disables service(s)

    • Drops startup file

    • Reads user/profile data of web browsers

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

    • Stops running service(s)

    • Adds Run key to start application

    • Drops file in System32 directory

    • Enumerates processes with tasklist

    • Sets desktop wallpaper using registry

MITRE ATT&CK Enterprise v16

Tasks