Analysis
- max time kernel
150s - max time network
152s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
- submitted
22/10/2026, 18:47
General
- Target Client.exe
- Size 6.2MB
- Sample261022-xfczpaey21
- SHA256 47a69e168029b27edf70bba88a5616587714e0e0d6c1a21d8e253e78a30cac99
Malware Config
Signatures
- Family: Sheetrat, NonEuclid rat
Sheetrat aka NonEuclid RAT is a trojan written in C#.
- Detects Sheetrat obfuscated version 1 IoCs
- Modifies WinLogon for persistence 2 TTPs 1 IoCs
- Event Triggered Execution: AppInit DLLs 1 TTPs
Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.
- Credentials from Password Stores: Windows Credential Manager 1 TTPs
Suspicious access to Credentials History.
- Executes dropped EXE 3 IoCs
- Loads dropped DLL 8 IoCs
- Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Adds Run key to start application 2 TTPs 1 IoCs
- Drops file in Windows directory 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- 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 8 IoCs
The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.
- Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 64 IoCs
- Suspicious use of AdjustPrivilegeToken 4 IoCs
- Suspicious use of WriteProcessMemory 3 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.
Processes
-
C:\Users\Admin\AppData\Local\Temp\Client.exe"C:\Users\Admin\AppData\Local\Temp\Client.exe"1⤵
- Modifies WinLogon for persistence
- Adds Run key to start application
- Drops file in Windows directory
- Reads the TCP/IP host and domain name from the registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SYSTEM32\CMD.exe"CMD" /C SchTaSKs /CrEAte /F /sc OnLoGoN /rl HighEst /tn "AMDHoiseSuppression" /tr "C:\Users\Public\Pictures\AMDHoiseSuppression.exe" & exit2⤵
- Executes a command shell one-liner
- Suspicious use of WriteProcessMemory
-
C:\Windows\system32\schtasks.exeSchTaSKs /CrEAte /F /sc OnLoGoN /rl HighEst /tn "AMDHoiseSuppression" /tr "C:\Users\Public\Pictures\AMDHoiseSuppression.exe"3⤵
- Scheduled Task/Job: Scheduled Task
-
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C:\Windows\system32\wbem\WmiApSrv.exeC:\Windows\system32\wbem\WmiApSrv.exe1⤵
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
-
C:\Users\Public\Pictures\AMDHoiseSuppression.exeC:\Users\Public\Pictures\AMDHoiseSuppression.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- Reads the TCP/IP host and domain name from the registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
C:\Users\Admin\AppData\Roaming\xdwdCamtasia Upgrade.exe"C:\Users\Admin\AppData\Roaming\xdwdCamtasia Upgrade.exe"1⤵
- Executes dropped EXE
- Loads dropped DLL
- Reads the TCP/IP host and domain name from the registry
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Users\Public\Pictures\AMDHoiseSuppression.exe"C:\Users\Public\Pictures\AMDHoiseSuppression.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Reads the TCP/IP host and domain name from the registry
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v16
Execution
Command and Scripting Interpreter
1Windows Command Shell
1Scheduled Task/Job
1Scheduled Task
1Persistence
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Event Triggered Execution
1AppInit DLLs
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Event Triggered Execution
1AppInit DLLs
1Scheduled Task/Job
1Scheduled Task
1Credential Access
Credentials from Password Stores
2Credentials from Web Browsers
1Windows Credential Manager
1Unsecured Credentials
1Credentials In Files
1Replay Monitor
Loading Replay Monitor...
Downloads
xdwd.dll
memory/2216-131-0x00007FFB24E40000-0x00007FFB250A3000-memory.dmp
memory/2216-130-0x00007FFB24E40000-0x00007FFB250A3000-memory.dmp
memory/2216-102-0x00007FFB24E40000-0x00007FFB250A3000-memory.dmp
memory/2216-101-0x00007FFB24F9F000-0x00007FFB24FA0000-memory.dmp
memory/4080-5-0x00007FFB01FA0000-0x00007FFB02944000-memory.dmp
memory/4080-98-0x00007FFB01FA0000-0x00007FFB02944000-memory.dmp
memory/4080-6-0x00007FFB01FA0000-0x00007FFB02944000-memory.dmp
memory/4080-8-0x00007FFB01FA0000-0x00007FFB02944000-memory.dmp
memory/4080-26-0x00007FFB01FA0000-0x00007FFB02944000-memory.dmp
memory/4080-0-0x00007FFB0212F000-0x00007FFB02130000-memory.dmp
memory/4080-97-0x000000001D070000-0x000000001D168000-memory.dmp
memory/4080-7-0x00007FFB01FA0000-0x00007FFB02944000-memory.dmp
memory/4080-4-0x00007FFB01FA0000-0x00007FFB02944000-memory.dmp
memory/4080-3-0x00007FFB01FA0000-0x00007FFB02944000-memory.dmp
memory/4080-121-0x000000001D370000-0x000000001D3E6000-memory.dmp
memory/4080-122-0x0000000001910000-0x000000000191C000-memory.dmp
memory/4080-123-0x0000000001950000-0x000000000196E000-memory.dmp
memory/4080-2-0x00007FFB01FA0000-0x00007FFB02944000-memory.dmp
memory/4080-1-0x00000000009D0000-0x0000000001006000-memory.dmp