Analysis
- max time kernel
150s - max time network
152s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
- submitted
11/09/2026, 05:45
General
- Target F89A414276E136A36BDA7952CA8F6BE2.exe
- Size 692KB
- Sample260911-gfxfbsstft
- SHA256 aff88ff4d9ea55fdab0b75966cdf8eea13c3d511e0d00df29f9f57768db193e3
Malware Config
Extracted
-
valleyrat_s2
-
1.0
-
134.122.155.220:443
-
134.122.155.220:80
Signatures
- Family: ValleyRat
ValleyRat stage2 is a backdoor written in C++.
- Detects ValleyRAT payload 3 IoCs
- Executes dropped EXE 6 IoCs
- Adds Run key to start application 2 TTPs 1 IoCs
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Enumerates connected drives 3 TTPs 22 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- 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.
- System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Modifies registry class 8 IoCs
- Suspicious behavior: EnumeratesProcesses 6 IoCs
- Suspicious behavior: LoadsDriver 1 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 7 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\F89A414276E136A36BDA7952CA8F6BE2.exe"C:\Users\Admin\AppData\Local\Temp\F89A414276E136A36BDA7952CA8F6BE2.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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C:\###.exe"C:\###.exe"2⤵
- Executes dropped EXE
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
-
C:\Windows\explorer.exeexplorer.exe shell:::{AEA1357E-5CD3-41DB-B0AD-7A4D8B5A1068}3⤵
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-
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C:\Users\Admin\AppData\Local\Temp\~sys_64957.sysC:\Users\Admin\AppData\Local\Temp\~sys_64957.sys1⤵
- 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\SvcHostLoader\SvcHostLoader.exe"C:\ProgramData\SvcHostLoader\SvcHostLoader.exe" -onlyctrl2⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
-
C:\Windows\system32\cmd.execmd.exe /c "C:\ProgramData\SvcHostLoader\SvcHostLoader.exe -reonlyctrl"3⤵
- Executes a command shell one-liner
- Suspicious use of WriteProcessMemory
-
C:\ProgramData\SvcHostLoader\SvcHostLoader.exeC:\ProgramData\SvcHostLoader\SvcHostLoader.exe -reonlyctrl4⤵
- Executes dropped EXE
- Adds Run key to start application
-
-
-
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C:\ProgramData\SvcHostLoader\SvcHostLoader.exe"C:\ProgramData\SvcHostLoader\SvcHostLoader.exe" -onlyctrl1⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
-
C:\Windows\SYSTEM32\cmd.execmd.exe /c "C:\ProgramData\SvcHostLoader\SvcHostLoader.exe -reonlyctrl"2⤵
- Executes a command shell one-liner
- Suspicious use of WriteProcessMemory
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C:\ProgramData\SvcHostLoader\SvcHostLoader.exeC:\ProgramData\SvcHostLoader\SvcHostLoader.exe -reonlyctrl3⤵
- Executes dropped EXE
- Enumerates connected drives
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Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
###.exe
~sys_64957.sys
memory/1128-25-0x00000000032E0000-0x000000000353F000-memory.dmp
memory/1128-50-0x00000000032E0000-0x000000000353F000-memory.dmp
memory/1984-62-0x0000000140000000-0x000000014002A000-memory.dmp
memory/1984-64-0x0000000140000000-0x000000014002A000-memory.dmp
memory/1984-52-0x0000000140000000-0x000000014002A000-memory.dmp
memory/1984-21-0x0000000140000000-0x000000014002A000-memory.dmp
memory/1984-26-0x0000000140000000-0x000000014002A000-memory.dmp
memory/1984-27-0x0000000140000000-0x000000014002A000-memory.dmp
memory/1984-29-0x0000000140000000-0x000000014002A000-memory.dmp
memory/1984-78-0x0000000140000000-0x000000014002A000-memory.dmp
memory/1984-76-0x0000000140000000-0x000000014002A000-memory.dmp
memory/1984-75-0x0000000140000000-0x000000014002A000-memory.dmp
memory/1984-74-0x0000000140000000-0x000000014002A000-memory.dmp
memory/1984-71-0x0000000140000000-0x000000014002A000-memory.dmp
memory/1984-72-0x0000000140000000-0x000000014002A000-memory.dmp
memory/1984-70-0x0000000140000000-0x000000014002A000-memory.dmp
memory/1984-41-0x0000000140000000-0x000000014002A000-memory.dmp
memory/1984-42-0x0000000140000000-0x000000014002A000-memory.dmp
memory/1984-45-0x0000000140000000-0x000000014002A000-memory.dmp
memory/1984-46-0x0000000140000000-0x000000014002A000-memory.dmp
memory/1984-47-0x0000000140000000-0x000000014002A000-memory.dmp
memory/1984-49-0x0000000140000000-0x000000014002A000-memory.dmp
memory/1984-22-0x0000000140000000-0x000000014002A000-memory.dmp
memory/1984-51-0x0000000140000000-0x000000014002A000-memory.dmp
memory/1984-24-0x0000000140000000-0x000000014002A000-memory.dmp
memory/1984-54-0x0000000140000000-0x000000014002A000-memory.dmp
memory/1984-55-0x0000000140000000-0x000000014002A000-memory.dmp
memory/1984-56-0x0000000140000000-0x000000014002A000-memory.dmp
memory/1984-58-0x0000000140000000-0x000000014002A000-memory.dmp
memory/1984-59-0x0000000140000000-0x000000014002A000-memory.dmp
memory/1984-60-0x0000000140000000-0x000000014002A000-memory.dmp
memory/1984-16-0x0000000140000000-0x000000014002A000-memory.dmp
memory/1984-63-0x0000000140000000-0x000000014002A000-memory.dmp
memory/1984-68-0x0000000140000000-0x000000014002A000-memory.dmp
memory/1984-66-0x0000000140000000-0x000000014002A000-memory.dmp
memory/1984-67-0x0000000140000000-0x000000014002A000-memory.dmp
memory/5756-20-0x0000000140000000-0x000000014002A000-memory.dmp
memory/5756-39-0x0000000140000000-0x000000014002A000-memory.dmp
memory/5756-37-0x0000023E50FC0000-0x0000023E51010000-memory.dmp
memory/5756-36-0x0000023E50FC0000-0x0000023E51010000-memory.dmp
memory/5756-34-0x0000000140000000-0x000000014002A000-memory.dmp
memory/5756-35-0x0000023E50FC0000-0x0000023E51010000-memory.dmp
memory/5756-32-0x0000000140000000-0x000000014002A000-memory.dmp
memory/5756-31-0x0000000140000000-0x000000014002A000-memory.dmp