Analysis
- max time kernel
150s - max time network
146s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
- submitted
17/10/2026, 00:28
General
- Target 4a60656e1dbaae45296c9660ee49081249081b1f82bcea639ef93e37a6c77572.exe
- Size 551KB
- Sample261017-asbk3atvbw
- SHA256 4a60656e1dbaae45296c9660ee49081249081b1f82bcea639ef93e37a6c77572
Malware Config
Extracted
-
valleyrat_s2
-
1.0
-
202.61.157.33:21357
Signatures
- Family: ValleyRat
ValleyRat stage2 is a backdoor written in C++.
- Detects ValleyRAT payload 6 IoCs
- UAC bypass 3 TTPs 2 IoCs
- Executes dropped EXE 2 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 44 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
- UPX packed file 6 IoCs
Detects executables packed with UPX/modified UPX open source packer.
- Executes a command shell one-liner 1 TTPs 1 IoCs
Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.
- Reads the TCP/IP host and domain name from the registry 1 TTPs 4 IoCs
The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.
- Suspicious behavior: EnumeratesProcesses 10 IoCs
- Suspicious behavior: LoadsDriver 6 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of FindShellTrayWindow 1 IoCs
- Suspicious use of SendNotifyMessage 1 IoCs
- Suspicious use of WriteProcessMemory 3 IoCs
- System policy modification 1 TTPs 3 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\4a60656e1dbaae45296c9660ee49081249081b1f82bcea639ef93e37a6c77572.exe"C:\Users\Admin\AppData\Local\Temp\4a60656e1dbaae45296c9660ee49081249081b1f82bcea639ef93e37a6c77572.exe"1⤵
- UAC bypass
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: LoadsDriver
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
- System policy modification
-
C:\Windows\SYSTEM32\citool.exe"citool.exe" -r2⤵
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C:\Windows\SYSTEM32\cmd.execmd.exe /c "C:\ProgramData\MicroPoint\WinCombo.exe"2⤵
- Executes a command shell one-liner
- Suspicious use of WriteProcessMemory
-
C:\ProgramData\MicroPoint\WinCombo.exeC:\ProgramData\MicroPoint\WinCombo.exe3⤵
- Executes dropped EXE
- Adds Run key to start application
- Enumerates connected drives
- Reads the TCP/IP host and domain name from the registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: LoadsDriver
- Suspicious use of AdjustPrivilegeToken
-
-
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C:\ProgramData\MicroPoint\WinCombo.exe"C:\ProgramData\MicroPoint\WinCombo.exe"1⤵
- Executes dropped EXE
- Enumerates connected drives
- Reads the TCP/IP host and domain name from the registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: LoadsDriver
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Enterprise v16
Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Defense Evasion
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Impair Defenses
1Disable or Modify Tools
1Modify Registry
3Replay Monitor
Loading Replay Monitor...
Downloads
EraseCode.dat
WinCombo.exe
memory/2856-0-0x00007FF7EB480000-0x00007FF7EB5F4000-memory.dmp
memory/2856-3-0x00007FF7EB480000-0x00007FF7EB5F4000-memory.dmp
memory/4196-28-0x0000000140000000-0x000000014002A000-memory.dmp
memory/4196-15-0x0000000140000000-0x000000014002A000-memory.dmp
memory/4196-9-0x000001A961590000-0x000001A961591000-memory.dmp
memory/4196-10-0x0000000140000000-0x000000014002A000-memory.dmp
memory/4196-8-0x000001A962D60000-0x000001A962D83000-memory.dmp
memory/4196-4-0x00007FF643460000-0x00007FF6435D4000-memory.dmp
memory/4196-14-0x0000000140000000-0x000000014002A000-memory.dmp
memory/4196-7-0x0000000140000000-0x000000014002A000-memory.dmp
memory/4196-26-0x00007FF643460000-0x00007FF6435D4000-memory.dmp
memory/4196-27-0x0000000140000000-0x000000014002A000-memory.dmp
memory/4196-18-0x0000000140000000-0x000000014002A000-memory.dmp
memory/4196-19-0x000001A963370000-0x000001A9633C0000-memory.dmp
memory/4196-21-0x000001A963370000-0x000001A9633C0000-memory.dmp
memory/4196-20-0x000001A963370000-0x000001A9633C0000-memory.dmp
memory/4296-16-0x0000000140000000-0x000000014002A000-memory.dmp
memory/4296-23-0x000001D18C800000-0x000001D18C850000-memory.dmp
memory/4296-25-0x000001D18C800000-0x000001D18C850000-memory.dmp
memory/4296-24-0x000001D18C800000-0x000001D18C850000-memory.dmp
memory/4296-22-0x0000000140000000-0x000000014002A000-memory.dmp
memory/4296-17-0x0000000140000000-0x000000014002A000-memory.dmp
memory/4296-12-0x0000000140000000-0x000000014002A000-memory.dmp
memory/4296-29-0x0000000140000000-0x000000014002A000-memory.dmp
memory/4296-32-0x00007FF643460000-0x00007FF6435D4000-memory.dmp