General

  • Target
    NursultanCrack.exe
  • Size 11.3MB
  • Sample260701-vbza1scs3v
  • SHA256 e6e713954e02f921374deed78cbccf0f84560f4b72506fe7a9de1c97626d82e7
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Targets

    • Target
      NursultanCrack.exe
    • Size 11.3MB
    • SHA256 e6e713954e02f921374deed78cbccf0f84560f4b72506fe7a9de1c97626d82e7
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Detects Sheetrat Payload

      Sheetrat aka NonEuclid RAT is a trojan written in C#.

    • Family: Sheetrat, NonEuclid rat

      Sheetrat aka NonEuclid RAT is a trojan written in C#.

    • Modifies WinLogon for persistence

    • Modifies Windows Defender DisableAntiSpyware settings

    • Modifies Windows Defender TamperProtection settings

    • Modifies firewall policy service

    • Modifies security service

    • Modifies boot configuration data using bcdedit

    • 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 Windows Firewall

    • Possible privilege escalation attempt

    • Checks computer location settings

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

    • Creates new service(s)

    • Executes dropped EXE

    • Loads dropped DLL

    • Modifies file permissions

    • Stops running service(s)

    • Windows security modification

    • Checks whether UAC is enabled

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • File and Directory Permissions Modification: Windows File and Directory Permissions Modification

    • Looks up external IP address via web service

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

    • Drops file in System32 directory

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v16

Tasks