Analysis
- max time kernel
149s - max time network
150s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
- submitted
18/07/2026, 19:30
General
- Target WindowsUpdate.exe
- Size 189KB
- Sample260718-x79sqsd151
- SHA256 0a3061ce09d7e3cb2b3d3453432da69ee83b59b782853d1f6462fd177db75a7a
Malware Config
Extracted
-
valleyrat_s2
-
1.0
-
103.119.3.160:6666
-
127.0.0.1:80
-
campaign_date
2026. 7.15
Signatures
- Family: ValleyRat
ValleyRat stage2 is a backdoor written in C++.
- Detects ValleyRAT payload 7 IoCs
- Drops startup file 1 IoCs
- 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).
- Suspicious behavior: EnumeratesProcesses 64 IoCs
- Suspicious use of SetWindowsHookEx 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\WindowsUpdate.exe"C:\Users\Admin\AppData\Local\Temp\WindowsUpdate.exe"1⤵
- Drops startup file
- Enumerates connected drives
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
memory/3480-1-0x0000017E63EC0000-0x0000017E63EC2000-memory.dmp
memory/3480-5-0x0000017E64040000-0x0000017E64069000-memory.dmp
memory/3480-4-0x0000017E63FB0000-0x0000017E64031000-memory.dmp
memory/3480-3-0x0000017E64040000-0x0000017E64069000-memory.dmp
memory/3480-6-0x0000017E64040000-0x0000017E64069000-memory.dmp
memory/3480-7-0x0000017E64040000-0x0000017E64069000-memory.dmp
memory/3480-9-0x0000017E644C0000-0x0000017E6450B000-memory.dmp
memory/3480-11-0x0000017E64620000-0x0000017E64672000-memory.dmp
memory/3480-10-0x0000017E64620000-0x0000017E64672000-memory.dmp
memory/3480-8-0x0000017E64040000-0x0000017E64069000-memory.dmp
memory/3480-12-0x0000017E64620000-0x0000017E64672000-memory.dmp
memory/3480-13-0x0000017E64620000-0x0000017E64672000-memory.dmp
memory/3480-14-0x0000017E64620000-0x0000017E64672000-memory.dmp
memory/3480-16-0x0000017E64040000-0x0000017E64069000-memory.dmp
memory/3480-15-0x0000017E64040000-0x0000017E64069000-memory.dmp
memory/3480-17-0x0000017E64620000-0x0000017E64672000-memory.dmp