Analysis

  • user interaction
    yes
  • max time kernel
    149s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260911-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    14/11/2026, 15:15

General

  • Target
    injection.exe
  • Size 246KB
  • Sample261114-snbpdah191
  • SHA256 c71de033cef2324ccca35b4a8a30a0745ed724cf44318f2f3a6c471b650d3383
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • njrat

Version
  • <- NjRAT 0.7d Horror Edition ->

Botnet
  • Victim

C2
  • 21.tcp.cpolar.top:10237

Mutex
  • 080ede5933754dc8c210186a04855e98

Attributes
  • reg_key

    080ede5933754dc8c210186a04855e98

  • splitter

    Y262SUCZ4UJJ

Signatures

  • Family: njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Creates a file in the Startup directory 1 TTPs 2 IoCs

    A file was written to a Windows startup folder. Files in these directories are executed automatically when a user logs on or an application initializes.

  • Executes dropped EXE 5 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Enumerates video capture drivers 2 TTPs 1 IoCs

    Queries the legacy Video for Windows capture drivers. This is commonly abused by RATs to check for available webcams on the system before reporting to their C2.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs

    The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 43 IoCs
  • Suspicious use of WriteProcessMemory 5 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.

  • Views/modifies file attributes 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\injection.exe
    "C:\Users\Admin\AppData\Local\Temp\injection.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:364
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Roaming\RtkAudUService64.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:736
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'RtkAudUService64.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4664
  • C:\Users\Admin\AppData\Roaming\RtkAudUService64.exe
    C:\Users\Admin\AppData\Roaming\RtkAudUService64.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:4224
  • C:\Users\Admin\AppData\Roaming\RtkAudUService64.exe
    C:\Users\Admin\AppData\Roaming\RtkAudUService64.exe
    1⤵
    • Creates a file in the Startup directory
    • Executes dropped EXE
    • Adds Run key to start application
    • Enumerates video capture drivers
    • Reads the TCP/IP host and domain name from the registry
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4420
    • C:\Windows\system32\attrib.exe
      attrib +h "C:\Users\Admin\AppData\Roaming\RtkAudUService64.exe"
      2⤵
      • Views/modifies file attributes
      PID:1644
    • C:\Windows\system32\schtasks.exe
      schtasks /delete /tn CleanSweepCheck /f
      2⤵
        PID:2604
      • C:\Windows\system32\schtasks.exe
        schtasks /create /sc minute /mo 1 /tn CleanSweepCheck /tr C:\Users\Admin\AppData\Roaming\RtkAudUService64.exe
        2⤵
        • Scheduled Task/Job: Scheduled Task
        PID:5072
    • C:\Users\Admin\AppData\Roaming\RtkAudUService64.exe
      "C:\Users\Admin\AppData\Roaming\RtkAudUService64.exe" ..
      1⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:2852
    • C:\Users\Admin\AppData\Roaming\RtkAudUService64.exe
      C:\Users\Admin\AppData\Roaming\RtkAudUService64.exe
      1⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:3800
    • C:\Users\Admin\AppData\Roaming\RtkAudUService64.exe
      C:\Users\Admin\AppData\Roaming\RtkAudUService64.exe
      1⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:2580

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          RtkAudUService64.exe.log

          • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\RtkAudUService64.exe.log
          • Size 1KB
          • SHA256 471356f5b299eaaaf1856e0f3d93a94c68321a326f5210a952e93ddb3848647c
          • MD5 SHA1 SHA512 TLSH

          powershell.exe.log

          • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
          • Size 2KB
          • SHA256 84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f
          • MD5 SHA1 SHA512 TLSH

          StartupProfileData-NonInteractive

          • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
          • Size 944B
          • SHA256 364297915313f721d05e88312a8ad352c1edc72833b320c04cb640ecd4544cc1
          • MD5 SHA1 SHA512 TLSH

          __PSScriptPolicyTest_1hrclzc0.iuo.ps1

          • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_1hrclzc0.iuo.ps1
          • Size 60B
          • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
          • MD5 SHA1 SHA512 TLSH

          RtkAudUService64.exe

          • Path C:\Users\Admin\AppData\Roaming\RtkAudUService64.exe
          • Size 246KB
          • SHA256 c71de033cef2324ccca35b4a8a30a0745ed724cf44318f2f3a6c471b650d3383
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/364-0-0x0000000000AE0000-0x0000000000B24000-memory.dmp

          memory/364-28-0x00000000013F0000-0x0000000001400000-memory.dmp

          memory/736-8-0x0000021705910000-0x0000021705932000-memory.dmp

          memory/736-1-0x000002171DF70000-0x000002171DF80000-memory.dmp

          memory/736-2-0x000002171DF70000-0x000002171DF80000-memory.dmp

          memory/4420-32-0x0000000000C80000-0x0000000000C96000-memory.dmp

          memory/4420-35-0x000000001B060000-0x000000001B074000-memory.dmp

          memory/4420-36-0x000000001C2D0000-0x000000001C2E4000-memory.dmp