Analysis
- max time kernel
150s - max time network
152s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
- submitted
25/08/2026, 03:30
General
- Target 20260824.168521.C8A41F9D52BE.exe
- Size 718KB
- Sample260825-d2fsxssvcx
- SHA256 765d34b234970be7eb12351051eff45d5d9cab515da07e4615381eacdc672d3b
Malware Config
Extracted
-
valleyrat_s2
-
1.0
-
170.62.130.47:449
-
170.62.130.47:443
Signatures
- Family: ValleyRat
ValleyRat stage2 is a backdoor written in C++.
- Detects ValleyRAT payload 6 IoCs
- Adds Run key to start application 2 TTPs 1 IoCs
- Enumerates connected drives 3 TTPs 44 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Executes dropped EXE 5 IoCs
- Loads dropped DLL 17 IoCs
- Executes a command shell one-liner 1 TTPs 2 IoCs
Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.
- Modifies registry class 8 IoCs
- Suspicious behavior: EnumeratesProcesses 8 IoCs
- Suspicious behavior: LoadsDriver 1 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 6 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\20260824.168521.C8A41F9D52BE.exe"C:\Users\Admin\AppData\Local\Temp\20260824.168521.C8A41F9D52BE.exe"1⤵
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
-
C:\Windows\explorer.exeexplorer.exe shell:::{FFD092BC-B8AF-48B2-ABD9-2CACFAFE92D0}2⤵
-
-
C:\Users\Admin\AppData\Local\Temp\~tmp_15517.tmpC:\Users\Admin\AppData\Local\Temp\~tmp_15517.tmp1⤵
- Executes dropped EXE
-
C:\Windows\explorer.exeC:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding1⤵
- Modifies registry class
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
-
C:\ProgramData\OpenraVPN\Loader.exe"C:\ProgramData\OpenraVPN\Loader.exe" -onlyctrl2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
-
C:\Windows\system32\cmd.execmd.exe /c "C:\ProgramData\OpenraVPN\Loader.exe -reonlyctrl"3⤵
- Executes a command shell one-liner
- Suspicious use of WriteProcessMemory
-
C:\ProgramData\OpenraVPN\Loader.exeC:\ProgramData\OpenraVPN\Loader.exe -reonlyctrl4⤵
- Adds Run key to start application
- Enumerates connected drives
- Executes dropped EXE
- Loads dropped DLL
-
-
-
-
C:\ProgramData\OpenraVPN\Loader.exe"C:\ProgramData\OpenraVPN\Loader.exe" -onlyctrl1⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
-
C:\Windows\SYSTEM32\cmd.execmd.exe /c "C:\ProgramData\OpenraVPN\Loader.exe -reonlyctrl"2⤵
- Executes a command shell one-liner
- Suspicious use of WriteProcessMemory
-
C:\ProgramData\OpenraVPN\Loader.exeC:\ProgramData\OpenraVPN\Loader.exe -reonlyctrl3⤵
- Enumerates connected drives
- Executes dropped EXE
- Loads dropped DLL
-
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
Loader.exe
libcef.dll
msvcp140.dll
vcruntime140.dll
vcruntime140_1.dll
~tmp_15517.tmp
memory/1176-29-0x0000000140000000-0x000000014002A000-memory.dmp
memory/1176-35-0x0000000140000000-0x000000014002A000-memory.dmp
memory/1176-41-0x0000000140000000-0x000000014002A000-memory.dmp
memory/1176-38-0x00000195C7250000-0x00000195C72A0000-memory.dmp
memory/1176-26-0x0000000140000000-0x000000014002A000-memory.dmp
memory/1176-30-0x0000000140000000-0x000000014002A000-memory.dmp
memory/1176-37-0x00000195C7250000-0x00000195C72A0000-memory.dmp
memory/1176-36-0x00000195C7250000-0x00000195C72A0000-memory.dmp
memory/2036-14-0x0000000140000000-0x000000014002A000-memory.dmp
memory/2036-33-0x0000023AB8900000-0x0000023AB8950000-memory.dmp
memory/2036-34-0x0000023AB8900000-0x0000023AB8950000-memory.dmp
memory/2036-31-0x0000000140000000-0x000000014002A000-memory.dmp
memory/2036-32-0x0000023AB8900000-0x0000023AB8950000-memory.dmp
memory/2036-28-0x0000000140000000-0x000000014002A000-memory.dmp
memory/2036-39-0x0000000140000000-0x000000014002A000-memory.dmp
memory/2036-27-0x0000000140000000-0x000000014002A000-memory.dmp