Analysis
- user interaction
yes - max time kernel
135s - max time network
146s - platform
windows10-2004_x64 - resource
win10v2004-20260911-en - resource tags
- submitted
22/10/2026, 16:19
Errors
General
- Target NjRat 0.7D Horror Edition.exe
- Size 2.4MB
- Sample261022-tskzaavz3j
- SHA256 edda6be4e6575d974b449d03130ff4824bdb77221863398b10ad7d73352e24fa
Malware Config
Extracted
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neptunerat
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m7mnga-38338.portmap.host:38338
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filename
USB.exe
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group
MasonGroup
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key
48IPZiPizPUjoyzg
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rat_name
MasonRAT
Signatures
- Family: DonutLoader
DonutLoader is a position-independent code that enables in-memory execution of VBScript, JScript, EXE, DLL files and dotNET assemblies.
- Family: NeptuneRAT, MasonRAT
NeptuneRAT aka MasonRAT is a trojan written in C#.
- Detects DonutLoader 1 IoCs
- Detects NeptuneRAT stealer 1 IoCs
- 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.
- Disables Task Manager via registry modification
- Checks computer location settings 2 TTPs 6 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes a file named after a Windows system binary 1 TTPs 4 IoCs
The file runs from a user directory while carrying the name of an executable that normally only exists in System32.
- Executes dropped EXE 12 IoCs
- Adds Run key to start application 2 TTPs 1 IoCs
- Contacts third-party web service commonly abused for C2 1 TTPs 2 IoCs
Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.
- Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs
Bootkits write to the MBR to gain persistence at a level below the operating system.
- Drops file in System32 directory 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).
- 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.
- 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.
- System Location Discovery: System Language Discovery 1 TTPs 4 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Delays execution with timeout.exe 1 IoCs
- Modifies registry class 2 IoCs
- 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 64 IoCs
- Suspicious use of AdjustPrivilegeToken 9 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 13 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
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C:\Users\Admin\AppData\Local\Temp\NjRat 0.7D Horror Edition.exe"C:\Users\Admin\AppData\Local\Temp\NjRat 0.7D Horror Edition.exe"1⤵
- Checks computer location settings
- Modifies registry class
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\MasonDrop\windows-defender(1).exe"C:\Users\Admin\AppData\Local\Temp\MasonDrop\windows-defender(1).exe"2⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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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\taskhostw.exe'3⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'taskhostw.exe'3⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpAAF1.tmp.bat""3⤵
- Executes a command shell one-liner
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\timeout.exetimeout 34⤵
- Delays execution with timeout.exe
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C:\Windows\system32\OpenWith.exeC:\Windows\system32\OpenWith.exe -Embedding1⤵
- Modifies registry class
- Suspicious use of SetWindowsHookEx
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C:\Users\Admin\AppData\Roaming\taskhostw.exeC:\Users\Admin\AppData\Roaming\taskhostw.exe1⤵
- Executes a file named after a Windows system binary
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Roaming\taskhostw.exeC:\Users\Admin\AppData\Roaming\taskhostw.exe1⤵
- Checks computer location settings
- Executes a file named after a Windows system binary
- 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 behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\schtasks.exe"C:\Windows\System32\schtasks.exe" /create /f /sc minute /mo 1 /tn "taskhostw" /tr "C:\Users\Admin\AppData\Roaming\taskhostw.exe"2⤵
- Scheduled Task/Job: Scheduled Task
-
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C:\Users\Admin\AppData\Local\Temp\tmp5C1B.tmp.exe"C:\Users\Admin\AppData\Local\Temp\tmp5C1B.tmp.exe"2⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\MBR2.exe"C:\Users\Admin\AppData\Local\Temp\MBR2.exe"3⤵
- Checks computer location settings
- Executes dropped EXE
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\MatrixMBR.exe"C:\Windows\System32\MatrixMBR.exe"4⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\GDI.exe"C:\Users\Admin\AppData\Local\Temp\GDI.exe"5⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
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C:\Users\Admin\AppData\Local\Temp\MBR.exe"C:\Users\Admin\AppData\Local\Temp\MBR.exe"5⤵
- Executes dropped EXE
- Writes to the Master Boot Record (MBR)
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
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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
-
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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
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-
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C:\Users\Admin\AppData\Roaming\taskhostw.exeC:\Users\Admin\AppData\Roaming\taskhostw.exe1⤵
- Executes a file named after a Windows system binary
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Roaming\taskhostw.exeC:\Users\Admin\AppData\Roaming\taskhostw.exe1⤵
- Executes a file named after a Windows system binary
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\AUDIODG.EXEC:\Windows\system32\AUDIODG.EXE 0x4cc 0x4181⤵
Network
MITRE ATT&CK Enterprise v16
Execution
Command and Scripting Interpreter
2PowerShell
1Windows Command Shell
1Scheduled Task/Job
1Scheduled Task
1Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Pre-OS Boot
1Bootkit
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Scheduled Task
1Defense Evasion
Masquerading
1Match Legitimate Name or Location
1Modify Registry
1Pre-OS Boot
1Bootkit
1Replay Monitor
Loading Replay Monitor...
Downloads
powershell.exe.log
taskhostw.exe.log
StartupProfileData-NonInteractive
GDI.exe
MBR.exe
MBR2.exe
windows-defender(1).exe
TROLL2.exe
TROLL5.exe
__PSScriptPolicyTest_ufspu1wt.4hf.ps1
tmp5C1B.tmp.exe
tmpAAF1.tmp.bat
MatrixMBR.exe
memory/616-53-0x000000001B890000-0x000000001B8A5000-memory.dmp
memory/616-55-0x000000001C2F0000-0x000000001C302000-memory.dmp
memory/616-52-0x000000001BA00000-0x000000001BAC2000-memory.dmp
memory/2188-69-0x0000000000F60000-0x000000000104C000-memory.dmp
memory/2188-70-0x000000001BDE0000-0x000000001BEC4000-memory.dmp
memory/3796-26-0x0000023D40740000-0x0000023D40762000-memory.dmp
memory/4376-107-0x0000000005A50000-0x0000000005FF4000-memory.dmp
memory/4376-106-0x0000000000900000-0x00000000009B8000-memory.dmp
memory/4376-108-0x0000000005390000-0x0000000005422000-memory.dmp
memory/4376-109-0x0000000005470000-0x000000000547A000-memory.dmp
memory/4524-88-0x0000000000D40000-0x0000000000D7A000-memory.dmp
memory/4704-41-0x00007FF605690000-0x00007FF6056DF000-memory.dmp
memory/4732-142-0x0000000000460000-0x0000000000468000-memory.dmp
memory/5624-124-0x0000000000400000-0x000000000041D000-memory.dmp
memory/5892-123-0x0000000000440000-0x0000000000486000-memory.dmp
memory/6056-45-0x000000001B740000-0x000000001B750000-memory.dmp
memory/6056-17-0x0000000000890000-0x0000000000982000-memory.dmp