Analysis
- max time kernel
36s - max time network
57s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
- submitted
26/09/2026, 14:29
Errors
General
- Target 2313122323.exe
- Size 78KB
- Sample260926-rtpmravgle
- SHA256 9a26257abe702046297b53eae19d90ad28930e74fb3f060f365a2644308b9f52
Malware Config
Extracted
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neptunerat
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xqxhzc1wmj.localto.net:2954
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filename
USB.exe
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group
MasonGroup
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key
IeDZH7g3kMPFYc1f
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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
- Executes dropped EXE 3 IoCs
- 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 use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of FindShellTrayWindow 1 IoCs
- Suspicious use of WriteProcessMemory 2 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\2313122323.exe"C:\Users\Admin\AppData\Local\Temp\2313122323.exe"1⤵
- Reads the TCP/IP host and domain name from the registry
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- 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 "2313122323" /tr "C:\Users\Admin\AppData\Roaming\2313122323.exe"2⤵
- Scheduled Task/Job: Scheduled Task
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C:\Users\Admin\AppData\Local\Temp\tmpE66E.tmp.exe"C:\Users\Admin\AppData\Local\Temp\tmpE66E.tmp.exe"2⤵
- Executes dropped EXE
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C:\Users\Admin\AppData\Local\Temp\MBR2.exe"C:\Users\Admin\AppData\Local\Temp\MBR2.exe"3⤵
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C:\Windows\System32\MatrixMBR.exe"C:\Windows\System32\MatrixMBR.exe"4⤵
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C:\Users\Admin\AppData\Local\Temp\GDI.exe"C:\Users\Admin\AppData\Local\Temp\GDI.exe"5⤵
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C:\Users\Admin\AppData\Local\Temp\MBR.exe"C:\Users\Admin\AppData\Local\Temp\MBR.exe"5⤵
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C:\Users\Admin\AppData\Local\Temp\TROLL5.exe"C:\Users\Admin\AppData\Local\Temp\TROLL5.exe"3⤵
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C:\Users\Admin\AppData\Local\Temp\TROLL2.exe"C:\Users\Admin\AppData\Local\Temp\TROLL2.exe"3⤵
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C:\Users\Admin\AppData\Roaming\2313122323.exeC:\Users\Admin\AppData\Roaming\2313122323.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Roaming\2313122323.exe"C:\Users\Admin\AppData\Roaming\2313122323.exe"1⤵
- Executes dropped EXE
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C:\Windows\system32\AUDIODG.EXEC:\Windows\system32\AUDIODG.EXE 0x0000000000000504 0x00000000000005081⤵
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
GDI.exe
MBR.exe
MBR2.exe
TROLL2.exe
TROLL5.exe
tmpE66E.tmp.exe
2313122323.exe
MatrixMBR.exe
memory/1424-74-0x0000000000400000-0x000000000041D000-memory.dmp
memory/1784-46-0x0000000000190000-0x00000000001CA000-memory.dmp
memory/3112-73-0x0000000000F20000-0x0000000000F66000-memory.dmp
memory/3308-57-0x0000000000730000-0x00000000007E8000-memory.dmp
memory/3308-58-0x00000000057A0000-0x0000000005D5A000-memory.dmp
memory/3308-63-0x0000000002D80000-0x0000000002D8A000-memory.dmp
memory/3308-59-0x00000000051E0000-0x0000000005272000-memory.dmp
memory/3640-26-0x00000000004A0000-0x000000000058C000-memory.dmp
memory/3640-27-0x000000001B380000-0x000000001B464000-memory.dmp
memory/4752-14-0x00007FFB4A5D0000-0x00007FFB4AF74000-memory.dmp
memory/4752-15-0x000000001DB40000-0x000000001DB4E000-memory.dmp
memory/4752-1-0x0000000002B50000-0x0000000002B63000-memory.dmp
memory/4752-7-0x00007FFB4A5D0000-0x00007FFB4AF74000-memory.dmp
memory/4752-0-0x0000000000A20000-0x0000000000A3A000-memory.dmp
memory/4752-36-0x00007FFB4A5D0000-0x00007FFB4AF74000-memory.dmp
memory/4752-16-0x00007FFB4A5D0000-0x00007FFB4AF74000-memory.dmp
memory/4752-3-0x00007FFB4A75F000-0x00007FFB4A760000-memory.dmp
memory/4752-6-0x00007FFB4A5D0000-0x00007FFB4AF74000-memory.dmp
memory/4752-5-0x0000000002BB0000-0x0000000002BC0000-memory.dmp
memory/4752-4-0x00007FFB4A5D0000-0x00007FFB4AF74000-memory.dmp
memory/4984-88-0x0000000000150000-0x0000000000158000-memory.dmp
memory/5096-13-0x00007FFB4A5D0000-0x00007FFB4AF74000-memory.dmp
memory/5096-11-0x00007FFB4A5D0000-0x00007FFB4AF74000-memory.dmp