Analysis
- max time kernel
150s - max time network
159s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
- submitted
01/08/2026, 15:36
General
- Target 2026-08-01_e285493e78bb47efe631538345cc0f04_glassworm_icedid_luca-stealer_njrat.exe
- Size 31.8MB
- Sample260801-s16qaazblb
- SHA256 fc06481206fb5b7e537fefcce77cbb66405aff275d0a65b42dbdd456ac210330
Malware Config
Extracted
-
neptunerat
-
eell-50912.portmap.host:50912
-
filename
USB.exe
-
group
MasonGroup
-
key
Is380JldlaUyfljK
-
rat_name
MasonRAT
Signatures
- Family: NeptuneRAT, MasonRAT
NeptuneRAT aka MasonRAT is a trojan written in C#.
- Detects NeptuneRAT stealer 3 IoCs
- Detects PowerShell content designed to retrieve passwords from host 1 IoCs
- Detects Windows executables referencing non-Windows User-Agents 3 IoCs
- Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers 1 IoCs
- Detects executables containing SQL queries to confidential data stores. Observed in infostealers 1 IoCs
- Detects executables containing URLs to raw contents of a Github gist 3 IoCs
- Executes dropped EXE 12 IoCs
- Loads dropped DLL 16 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.
- Detects Pyinstaller 1 IoCs
- 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.
- 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 8 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 8 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\2026-08-01_e285493e78bb47efe631538345cc0f04_glassworm_icedid_luca-stealer_njrat.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-01_e285493e78bb47efe631538345cc0f04_glassworm_icedid_luca-stealer_njrat.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\MasonDrop\AutoClicker.exe"C:\Users\Admin\AppData\Local\Temp\MasonDrop\AutoClicker.exe"2⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\MasonDrop\AutoClicker.exe"C:\Users\Admin\AppData\Local\Temp\MasonDrop\AutoClicker.exe"3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
-
C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c "ver"4⤵
- Executes a command shell one-liner
-
-
-
-
C:\Users\Admin\AppData\Local\Temp\MasonDrop\injection.exe"C:\Users\Admin\AppData\Local\Temp\MasonDrop\injection.exe"2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Users\Admin\AppData\Roaming\dasHost.exeC:\Users\Admin\AppData\Roaming\dasHost.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
-
C:\Users\Admin\AppData\Roaming\dasHost.exe"C:\Users\Admin\AppData\Roaming\dasHost.exe"1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\148949d9-d0cd-49f5-a25a-f29229d8c3a8.exe"C:\Users\Admin\AppData\Local\Temp\148949d9-d0cd-49f5-a25a-f29229d8c3a8.exe"2⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\MasonDrop\Windows.exe"C:\Users\Admin\AppData\Local\Temp\MasonDrop\Windows.exe"3⤵
- Executes dropped EXE
-
-
C:\Users\Admin\AppData\Local\Temp\MasonDrop\MasonClient.exe"C:\Users\Admin\AppData\Local\Temp\MasonDrop\MasonClient.exe"3⤵
- Executes dropped EXE
- 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 "MasonClient" /tr "C:\Users\Admin\AppData\Roaming\MasonClient.exe"4⤵
- Scheduled Task/Job: Scheduled Task
-
-
-
-
C:\Users\Admin\AppData\Roaming\MasonClient.exeC:\Users\Admin\AppData\Roaming\MasonClient.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
-
C:\Users\Admin\AppData\Roaming\MasonClient.exe"C:\Users\Admin\AppData\Roaming\MasonClient.exe"1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
-
C:\Users\Admin\AppData\Roaming\MasonClient.exe"C:\Users\Admin\AppData\Roaming\MasonClient.exe"1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
-
C:\Users\Admin\AppData\Roaming\MasonClient.exe"C:\Users\Admin\AppData\Roaming\MasonClient.exe"1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
148949d9-d0cd-49f5-a25a-f29229d8c3a8.exe
AutoClicker.exe
MasonClient.exe
Windows.exe
injection.exe
_imaging.cp311-win_amd64.pyd
VCRUNTIME140.dll
_asyncio.pyd
_bz2.pyd
_ctypes.pyd
_decimal.pyd
_elementtree.pyd
_hashlib.pyd
_lzma.pyd
_multiprocessing.pyd
_overlapped.pyd
_queue.pyd
_socket.pyd
_ssl.pyd
auto.tcl
cp1252.enc
pkgIndex.tcl
init.tcl
pkgIndex.tcl
package.tcl
tclIndex
tm.tcl
button.tcl
entry.tcl
icons.tcl
pkgIndex.tcl
tk.tcl
_tkinter.pyd
base_library.zip
blue.json
libcrypto-3.dll
libffi-8.dll
libssl-3.dll
pyexpat.pyd
python3.DLL
python311.dll
select.pyd
tcl86t.dll
msgcat-1.6.1.tm
tk86t.dll
unicodedata.pyd
memory/568-1098-0x00007FF7E4CD0000-0x00007FF7E4CDD000-memory.dmp
memory/1456-265-0x00007FF67B260000-0x00007FF67B26E000-memory.dmp
memory/1900-1099-0x00007FF72A640000-0x00007FF72A659000-memory.dmp
memory/1900-1087-0x000000027DDB0000-0x000000027DE0A000-memory.dmp
memory/2660-1067-0x000000001B060000-0x000000001B0C0000-memory.dmp
memory/4416-974-0x00007FFF957D0000-0x00007FFF96174000-memory.dmp
memory/4416-1065-0x00007FFF957D0000-0x00007FFF96174000-memory.dmp
memory/4416-1066-0x00007FFF957D0000-0x00007FFF96174000-memory.dmp
memory/4416-462-0x00007FFF957D0000-0x00007FFF96174000-memory.dmp
memory/4416-975-0x00007FFF957D0000-0x00007FFF96174000-memory.dmp
memory/4416-222-0x00000000009F0000-0x0000000000A7E000-memory.dmp
memory/4416-180-0x00007FFF9595F000-0x00007FFF95960000-memory.dmp
memory/4416-981-0x00007FFF957D0000-0x00007FFF96174000-memory.dmp
memory/4416-309-0x00007FFF957D0000-0x00007FFF96174000-memory.dmp
memory/4416-939-0x00007FFF957D0000-0x00007FFF96174000-memory.dmp
memory/4452-1086-0x0000000000300000-0x0000000000312000-memory.dmp