General

  • Target
    f02bc1401bb7b817145796be2340fbdf8a091c293eefc79f1aa95c8d66678d01.zip
  • Size 10.6MB
  • Sample261110-kls7mseb52
  • SHA256 beda41a26bd873cee400e9090337b7da720f619c15aff0d8cdafdb134645825f
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Targets

    • Target
      f02bc1401bb7b817145796be2340fbdf8a091c293eefc79f1aa95c8d66678d01.exe
    • Size 10.8MB
    • SHA256 f02bc1401bb7b817145796be2340fbdf8a091c293eefc79f1aa95c8d66678d01
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Modifies WinLogon for persistence

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

    • Modifies boot configuration data using bcdedit

    • Command and Scripting Interpreter: PowerShell

      Run Powershell and hide display window.

    • Deletes backup catalog

      Uses wbadmin.exe to inhibit system recovery.

    • Drops file in Drivers directory

    • Modifies Windows Firewall

    • Possible privilege escalation attempt

    • Checks computer location settings

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

    • Creates new service(s)

    • Disables service(s)

    • Loads dropped DLL

    • Modifies file permissions

    • Stops running service(s)

    • Unexpected DNS network traffic destination

      Network traffic to other servers than the configured DNS servers was detected on the DNS port.

    • Adds Run key to start application

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Writes to the Master Boot Record (MBR)

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

    • Discovers running processes

      Running process information can be used to identify security tools or plan follow-on actions.

    • Drops file in System32 directory

    • Executes a VBScript file via the Windows Script Host.

    • UPX packed file

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

MITRE ATT&CK Enterprise v16

Tasks