Overview

overview

8

Static

static

3

DFFDFD/kur...ld.bat

windows10-2004-x64

3

DFFDFD/kur...ld.bat

windows11-ltsc_2024-x64

3

DFFDFD/kur...nt.bat

windows10-2004-x64

3

DFFDFD/kur...nt.bat

windows11-ltsc_2024-x64

8

DFFDFD/kur...c2.exe

windows10-2004-x64

1

DFFDFD/kur...c2.exe

windows11-ltsc_2024-x64

1

Analysis

  • max time kernel
    599s
  • max time network
    550s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    25/09/2026, 11:12

Sharing

Copy URL Twitter E-mail
Report Analysis Logs

General

  • Target
    DFFDFD/kuroko-rat-cpp/client/build_client.bat
  • Size 1KB
  • Sample260925-na2anavaph
  • SHA256 70375beb2c8768eba6c6d12dd9a678302d04c65d6eb2cf02ef9fb9c2a961a5fa
  • MD5 SHA1 SHA512 TLSH
Score
8/10
adwareexecutionpersistenceransomwarespyware

Malware Config

Signatures

  • Boot or Logon Autostart Execution: Active Setup 2 TTPs 1 IoCs

    Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

    persistence
  • Enumerates connected drives 3 TTPs 2 IoCs

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

  • Executes a command shell one-liner 1 TTPs 1 IoCs

    Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

    execution
  • Checks SCSI registry key(s) 3 TTPs 62 IoCs

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

  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
    adwarespyware
  • Modifies registry class 38 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 40 IoCs
  • Suspicious use of FindShellTrayWindow 54 IoCs
  • Suspicious use of SendNotifyMessage 43 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

    persistence
  • Uses Volume Shadow Copy WMI provider

    The Volume Shadow Copy service is used to manage backups/snapshots.

    ransomware
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

    ransomware

Processes

  • C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\DFFDFD\kuroko-rat-cpp\client\build_client.bat"
    1⤵
    • Executes a command shell one-liner
    • Suspicious use of WriteProcessMemory
    PID:5940
    • C:\Windows\system32\where.exe
      where cl
      2⤵
        PID:4448
      • C:\Windows\system32\where.exe
        where g++
        2⤵
          PID:2448
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k GPSvcGroup
        1⤵
          PID:5800
        • C:\Windows\system32\sihost.exe
          sihost.exe
          1⤵
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of WriteProcessMemory
          PID:2908
          • C:\Windows\explorer.exe
            explorer.exe /LOADSAVEDWINDOWS
            2⤵
            • Boot or Logon Autostart Execution: Active Setup
            • Enumerates connected drives
            • Checks SCSI registry key(s)
            • Modifies Internet Explorer settings
            • Modifies registry class
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of FindShellTrayWindow
            • Suspicious use of SendNotifyMessage
            • Suspicious use of SetWindowsHookEx
            PID:1432
        • C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe
          "C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe" -ServerName:CortanaUI.AppXstmwaab17q5s3y22tp6apqz7a45vwv65.mca
          1⤵
          • Modifies registry class
          • Suspicious use of SetWindowsHookEx
          PID:5896
        • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
          "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
          1⤵
          • Modifies registry class
          • Suspicious use of SetWindowsHookEx
          PID:2540

        Network

              MITRE ATT&CK Enterprise v16

              Replay Monitor

              Loading Replay Monitor...

              Downloads

              prep_Activatable Class_Hermes_perf.cache
              • Path C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\TempState\prep_Activatable Class_Hermes_perf.cache
              • Size 599B
              • SHA256 b536a3dae9ea5c69081f0491eed829e3b57e32401fdf49a63031bcd6b20e6fdb
              • MD5 SHA1 SHA512 TLSH
              Submit Download

              memory/2540-191-0x0000025579C40000-0x0000025579EFC000-memory.dmp
              Download

              memory/2540-200-0x0000025579C40000-0x0000025579EFC000-memory.dmp
              Download

              memory/5896-67-0x0000016B94200000-0x0000016B94220000-memory.dmp
              Download

              memory/5896-53-0x0000016B82C80000-0x0000016B82CA0000-memory.dmp
              Download

              memory/5896-35-0x0000016B82E80000-0x0000016B82F80000-memory.dmp
              Download

              memory/5896-33-0x0000016B82A20000-0x0000016B82A40000-memory.dmp
              Download

              memory/5896-22-0x0000016B801E0000-0x0000016B802E0000-memory.dmp
              Download

              memory/5896-23-0x0000016B801E0000-0x0000016B802E0000-memory.dmp
              Download

              memory/5896-21-0x0000016B801E0000-0x0000016B802E0000-memory.dmp
              Download