Analysis
- max time kernel
148s - max time network
154s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
- submitted
02/11/2026, 16:15
General
- Target g.exe
- Size 49KB
- Sample261102-tp7c4sbt9t
- SHA256 b197103950d674bb75854d092962bef0b830f6c185ca7028b0b5da0e790f037f
Malware Config
Extracted
-
neptunerat
-
wsdw-38977.portmap.host:38977
-
filename
USB.exe
-
group
MasonGroup
-
key
oEM09pFaQ1y4kQUU
-
rat_name
MasonRAT
Signatures
- Family: NeptuneRAT, MasonRAT
NeptuneRAT aka MasonRAT is a trojan written in C#.
- Detects NeptuneRAT stealer 2 IoCs
- Executes dropped EXE 4 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.
- 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 use of AdjustPrivilegeToken 5 IoCs
- Suspicious use of WriteProcessMemory 1 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\g.exe"C:\Users\Admin\AppData\Local\Temp\g.exe"1⤵
- Enumerates video capture drivers
- Reads the TCP/IP host and domain name from the registry
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\System32\schtasks.exe"C:\Windows\System32\schtasks.exe" /create /f /sc minute /mo 1 /tn "g" /tr "C:\Users\Admin\AppData\Roaming\g.exe"2⤵
- Scheduled Task/Job: Scheduled Task
-
-
C:\Users\Admin\AppData\Roaming\g.exeC:\Users\Admin\AppData\Roaming\g.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
-
C:\Users\Admin\AppData\Roaming\g.exe"C:\Users\Admin\AppData\Roaming\g.exe"1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
-
C:\Users\Admin\AppData\Roaming\g.exe"C:\Users\Admin\AppData\Roaming\g.exe"1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
-
C:\Users\Admin\AppData\Roaming\g.exe"C:\Users\Admin\AppData\Roaming\g.exe"1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
g.exe
memory/2852-6-0x00007FFE1E290000-0x00007FFE1EC34000-memory.dmp
memory/2852-8-0x00007FFE1E290000-0x00007FFE1EC34000-memory.dmp
memory/2852-3-0x00007FFE1E290000-0x00007FFE1EC34000-memory.dmp
memory/2852-4-0x00007FFE1E290000-0x00007FFE1EC34000-memory.dmp
memory/2852-5-0x00007FFE1E290000-0x00007FFE1EC34000-memory.dmp
memory/2852-0-0x00007FFE1E41F000-0x00007FFE1E420000-memory.dmp
memory/2852-1-0x00000000005C0000-0x00000000005D2000-memory.dmp
memory/2852-2-0x00007FFE1E290000-0x00007FFE1EC34000-memory.dmp
memory/2852-9-0x00007FFE1E290000-0x00007FFE1EC34000-memory.dmp
memory/2852-10-0x00007FFE1E290000-0x00007FFE1EC34000-memory.dmp
memory/2852-11-0x00007FFE1E290000-0x00007FFE1EC34000-memory.dmp
memory/2852-12-0x00007FFE1E290000-0x00007FFE1EC34000-memory.dmp
memory/2852-13-0x00007FFE1E290000-0x00007FFE1EC34000-memory.dmp
memory/2852-14-0x00007FFE1E290000-0x00007FFE1EC34000-memory.dmp