Analysis
- max time kernel
149s - max time network
151s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260710-en - resource tags
- submitted
20/07/2026, 04:48
General
- Target 88eaf6a21c38dda117b33de38a5a7418ff6e2f4e720b15b2d38bb2dc93f22cdf.exe
- Size 1.2MB
- Sample260720-ffmepae17r
- SHA256 88eaf6a21c38dda117b33de38a5a7418ff6e2f4e720b15b2d38bb2dc93f22cdf
Malware Config
Extracted
-
valleyrat_s2
-
1.0
-
43.229.113.34:6665
-
campaign_date
2026. 6.26
Signatures
- Family: ValleyRat
ValleyRat stage2 is a backdoor written in C++.
- Detects ValleyRAT payload 13 IoCs
- Executes dropped EXE 2 IoCs
- Loads dropped DLL 2 IoCs
- Adds Run key to start application 2 TTPs 2 IoCs
- Enumerates connected drives 3 TTPs 44 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).
- Suspicious behavior: EnumeratesProcesses 64 IoCs
- Suspicious use of SetWindowsHookEx 2 IoCs
- Suspicious use of WriteProcessMemory 1 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\88eaf6a21c38dda117b33de38a5a7418ff6e2f4e720b15b2d38bb2dc93f22cdf.exe"C:\Users\Admin\AppData\Local\Temp\88eaf6a21c38dda117b33de38a5a7418ff6e2f4e720b15b2d38bb2dc93f22cdf.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Roaming\xiaohe\WeChatAppEx.exe"C:\Users\Admin\AppData\Roaming\xiaohe\WeChatAppEx.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Adds Run key to start application
- Enumerates connected drives
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
-
-
C:\Users\Admin\AppData\Roaming\xiaohe\WeChatAppEx.exeC:\Users\Admin\AppData\Roaming\xiaohe\WeChatAppEx.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- Adds Run key to start application
- Enumerates connected drives
- Suspicious use of SetWindowsHookEx
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
WeChatAppEx.exe
xweb_elf.dll
资料.txt
memory/4640-33-0x0000000180000000-0x0000000180029000-memory.dmp
memory/4640-40-0x000001F329070000-0x000001F3290BE000-memory.dmp
memory/4640-20-0x000001F327370000-0x000001F327470000-memory.dmp
memory/4640-57-0x000001F329070000-0x000001F3290BE000-memory.dmp
memory/4640-45-0x000001F329070000-0x000001F3290BE000-memory.dmp
memory/4640-44-0x000001F329070000-0x000001F3290BE000-memory.dmp
memory/4640-32-0x0000000180000000-0x0000000180029000-memory.dmp
memory/4640-54-0x000001F327370000-0x000001F327470000-memory.dmp
memory/4640-50-0x0000000180000000-0x0000000180029000-memory.dmp
memory/4640-36-0x0000000180000000-0x0000000180029000-memory.dmp
memory/4640-13-0x0000000180000000-0x0000000180029000-memory.dmp
memory/4640-39-0x000001F329070000-0x000001F3290BE000-memory.dmp
memory/4640-37-0x000001F329020000-0x000001F329067000-memory.dmp
memory/4640-19-0x0000000180000000-0x0000000180029000-memory.dmp
memory/4640-46-0x000001F329070000-0x000001F3290BE000-memory.dmp
memory/5168-56-0x00007FF725F20000-0x00007FF725F85000-memory.dmp
memory/5988-43-0x0000026D1C000000-0x0000026D1C04E000-memory.dmp
memory/5988-41-0x0000000180000000-0x0000000180029000-memory.dmp
memory/5988-42-0x0000026D1C000000-0x0000026D1C04E000-memory.dmp
memory/5988-47-0x0000026D1C000000-0x0000026D1C04E000-memory.dmp
memory/5988-48-0x0000026D1C000000-0x0000026D1C04E000-memory.dmp
memory/5988-49-0x0000026D1C000000-0x0000026D1C04E000-memory.dmp
memory/5988-34-0x0000000180000000-0x0000000180029000-memory.dmp
memory/5988-52-0x0000000180000000-0x0000000180029000-memory.dmp
memory/5988-35-0x0000000180000000-0x0000000180029000-memory.dmp
memory/5988-55-0x0000026D1A2E0000-0x0000026D1A3E0000-memory.dmp
memory/5988-31-0x0000026D1A2E0000-0x0000026D1A3E0000-memory.dmp
memory/5988-30-0x0000000180000000-0x0000000180029000-memory.dmp
memory/5988-58-0x0000026D1C000000-0x0000026D1C04E000-memory.dmp