Analysis
- max time kernel
150s - max time network
139s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
- submitted
22/08/2026, 06:32
General
- Target b9866fee744fdca0b55cc6ebef85286611fe6ffc164c6f66e0e23f8a68d61231.exe
- Size 1.3MB
- Sample260822-hapzqsfm2s
- SHA256 b9866fee744fdca0b55cc6ebef85286611fe6ffc164c6f66e0e23f8a68d61231
Malware Config
Extracted
-
valleyrat_s2
-
1.0
-
154.12.19.70:22011
-
154.12.19.70:22012
Signatures
- Family: ValleyRat
ValleyRat stage2 is a backdoor written in C++.
- Detects ValleyRAT payload 4 IoCs
- Server Software Component: Terminal Services DLL 1 TTPs 1 IoCs
- Executes dropped EXE 1 IoCs
- Loads dropped DLL 2 IoCs
- Enumerates connected drives 3 TTPs 22 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
- Suspicious behavior: EnumeratesProcesses 64 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious behavior: LoadsDriver 1 IoCs
- Suspicious use of SetWindowsHookEx 2 IoCs
- Suspicious use of WriteProcessMemory 3 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.
- Uses Volume Shadow Copy WMI provider
The Volume Shadow Copy service is used to manage backups/snapshots.
- Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
Processes
-
C:\Users\Admin\AppData\Local\Temp\b9866fee744fdca0b55cc6ebef85286611fe6ffc164c6f66e0e23f8a68d61231.exe"C:\Users\Admin\AppData\Local\Temp\b9866fee744fdca0b55cc6ebef85286611fe6ffc164c6f66e0e23f8a68d61231.exe"1⤵
- Server Software Component: Terminal Services DLL
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
-
C:\Users\Admin\AppData\Local\Temp\~tmp_55465.tmpC:\Users\Admin\AppData\Local\Temp\~tmp_55465.tmp1⤵
- Executes dropped EXE
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k GPSvcGroup1⤵
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k RemoteControllerService -s RemoteControllerService1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
-
C:\Windows\system32\conhost.exe"C:\Windows\system32\conhost.exe"2⤵
- Enumerates connected drives
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
-
C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe3⤵
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Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
Svchost.dll
~tmp_55465.tmp
memory/5716-11-0x00000104A1ED0000-0x00000104A1EF9000-memory.dmp
memory/5716-10-0x000001049EFE0000-0x000001049F061000-memory.dmp
memory/5716-9-0x00000104A1ED0000-0x00000104A1EF9000-memory.dmp
memory/5716-12-0x00000104A1ED0000-0x00000104A1EF9000-memory.dmp
memory/5716-8-0x000001049EFB0000-0x000001049EFB1000-memory.dmp
memory/5716-13-0x00000104A1ED0000-0x00000104A1EF9000-memory.dmp
memory/5716-15-0x00000104A2140000-0x00000104A218D000-memory.dmp
memory/5716-14-0x00000104A2140000-0x00000104A218D000-memory.dmp
memory/5716-16-0x00000104A2140000-0x00000104A218D000-memory.dmp
memory/5716-17-0x00000104A2140000-0x00000104A218D000-memory.dmp
memory/5716-18-0x00000104A1ED0000-0x00000104A1EF9000-memory.dmp
memory/5716-19-0x00000104A1ED0000-0x00000104A1EF9000-memory.dmp