Analysis
- max time kernel
300s - max time network
295s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
- submitted
18/08/2026, 03:40
General
- Target 20260818885699752.930280FCBD.exe
- Size 718KB
- Sample260818-d8et7sdp21
- 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 12 IoCs
- Suspicious behavior: LoadsDriver 1 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 6 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\20260818885699752.930280FCBD.exe"C:\Users\Admin\AppData\Local\Temp\20260818885699752.930280FCBD.exe"1⤵
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Windows\explorer.exeexplorer.exe shell:::{0AAE1D62-1758-4568-B7BF-1F22864AD89B}2⤵
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C:\Users\Admin\AppData\Local\Temp\~tmp_14945.tmpC:\Users\Admin\AppData\Local\Temp\~tmp_14945.tmp1⤵
- Executes dropped EXE
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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
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C:\ProgramData\OpenraVPN\Loader.exe"C:\ProgramData\OpenraVPN\Loader.exe" -onlyctrl2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\cmd.execmd.exe /c "C:\ProgramData\OpenraVPN\Loader.exe -reonlyctrl"3⤵
- Executes a command shell one-liner
- Suspicious use of WriteProcessMemory
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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
- Suspicious behavior: EnumeratesProcesses
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C:\ProgramData\OpenraVPN\Loader.exe"C:\ProgramData\OpenraVPN\Loader.exe" -onlyctrl1⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Windows\SYSTEM32\cmd.execmd.exe /c "C:\ProgramData\OpenraVPN\Loader.exe -reonlyctrl"2⤵
- Executes a command shell one-liner
- Suspicious use of WriteProcessMemory
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C:\ProgramData\OpenraVPN\Loader.exeC:\ProgramData\OpenraVPN\Loader.exe -reonlyctrl3⤵
- Enumerates connected drives
- Executes dropped EXE
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
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Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
Loader.exe
libcef.dll
msvcp140.dll
vcruntime140.dll
vcruntime140_1.dll
~tmp_14945.tmp
memory/2480-37-0x000001BBA8AE0000-0x000001BBA8B30000-memory.dmp
memory/2480-35-0x0000000140000000-0x000000014002A000-memory.dmp
memory/2480-44-0x000001BBA8CE0000-0x000001BBA8DD0000-memory.dmp
memory/2480-41-0x0000000140000000-0x000000014002A000-memory.dmp
memory/2480-42-0x0000000140000000-0x000000014002A000-memory.dmp
memory/2480-26-0x0000000140000000-0x000000014002A000-memory.dmp
memory/2480-31-0x0000000140000000-0x000000014002A000-memory.dmp
memory/2480-32-0x0000000140000000-0x000000014002A000-memory.dmp
memory/2480-38-0x000001BBA8AE0000-0x000001BBA8B30000-memory.dmp
memory/2480-36-0x000001BBA8AE0000-0x000001BBA8B30000-memory.dmp
memory/4692-30-0x000002088D390000-0x000002088D3E0000-memory.dmp
memory/4692-34-0x000002088D390000-0x000002088D3E0000-memory.dmp
memory/4692-13-0x0000000140000000-0x000000014002A000-memory.dmp
memory/4692-33-0x000002088D390000-0x000002088D3E0000-memory.dmp
memory/4692-40-0x0000000140000000-0x000000014002A000-memory.dmp
memory/4692-39-0x0000000140000000-0x000000014002A000-memory.dmp
memory/4692-29-0x0000000140000000-0x000000014002A000-memory.dmp
memory/4692-27-0x0000000140000000-0x000000014002A000-memory.dmp
memory/4692-43-0x000002088DAF0000-0x000002088DBE0000-memory.dmp
memory/4692-28-0x0000000140000000-0x000000014002A000-memory.dmp