Analysis
- max time kernel
150s - max time network
150s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260629-en - resource tags
- submitted
02/07/2026, 19:14
General
- Target k29r2tzk2hf9uxh5.exe
- Size 461KB
- Sample260702-xxtnrsc13x
- SHA256 2248e4c47dcff22413900bd5aa47555f12187909966534bb54ee50e08c3a239f
Malware Config
Extracted
-
sheetrat
-
1.8
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hfdvskjsdfol-61275.portmap.host:61275
Signatures
- Family: Sheetrat, NonEuclid rat
Sheetrat aka NonEuclid RAT is a trojan written in C#.
- Detects Sheetrat obfuscated V1.8 and higher 1 IoCs
Sheetrat aka NonEuclid RAT is a trojan written in C#.
- 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.
- Executes dropped EXE 5 IoCs
- Loads dropped DLL 7 IoCs
- Drops file in Windows directory 16 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of AdjustPrivilegeToken 7 IoCs
- Suspicious use of WriteProcessMemory 6 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
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C:\Users\Admin\AppData\Local\Temp\k29r2tzk2hf9uxh5.exe"C:\Users\Admin\AppData\Local\Temp\k29r2tzk2hf9uxh5.exe"1⤵
- Modifies WinLogon for persistence
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SYSTEM32\CMD.exe"CMD" netsh advfirewall firewall add rule name=":qe,<nCX<eD3<'" dir=in action=allow program="C:\Windows\xdwdSystem32\Defender.exe" enable=yes & exit2⤵
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C:\Windows\SYSTEM32\cmd.exe"cmd" /c schtasks /create /f /sc minute /mo 1 /tn "Microsoft\Windows\WAppCrashNvTew" /tr "C:\Windows\xdwdSystem32\Defender.exe" /RL HIGHEST & exit2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\schtasks.exeschtasks /create /f /sc minute /mo 1 /tn "Microsoft\Windows\WAppCrashNvTew" /tr "C:\Windows\xdwdSystem32\Defender.exe" /RL HIGHEST3⤵
- Scheduled Task/Job: Scheduled Task
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C:\Windows\SYSTEM32\cmd.exe"cmd" /c schtasks /create /f /sc minute /mo 30 /tn "Microsoft\MachineCore" /tr "C:\Windows\Web\MalwareDef.exe" /RL HIGHEST & exit2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\schtasks.exeschtasks /create /f /sc minute /mo 30 /tn "Microsoft\MachineCore" /tr "C:\Windows\Web\MalwareDef.exe" /RL HIGHEST3⤵
- Scheduled Task/Job: Scheduled Task
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C:\Windows\xdwdSystem32\Defender.exe"C:\Windows\xdwdSystem32\Defender.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\xdwdSystem32\Defender.exeC:\Windows\xdwdSystem32\Defender.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\Web\MalwareDef.exeC:\Windows\Web\MalwareDef.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\xdwdSystem32\Defender.exe"C:\Windows\xdwdSystem32\Defender.exe"1⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\xdwdSystem32\Defender.exe"C:\Windows\xdwdSystem32\Defender.exe"1⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Enterprise v16
Persistence
Boot or Logon Autostart Execution
1Winlogon Helper DLL
1Event Triggered Execution
1AppInit DLLs
1Scheduled Task/Job
1Scheduled Task
1Replay Monitor
Loading Replay Monitor...
Downloads
xdwd.dll
memory/4296-6-0x00007FFA707F0000-0x00007FFA71194000-memory.dmp
memory/4296-8-0x00007FFA707F0000-0x00007FFA71194000-memory.dmp
memory/4296-3-0x00007FFA707F0000-0x00007FFA71194000-memory.dmp
memory/4296-4-0x00007FFA707F0000-0x00007FFA71194000-memory.dmp
memory/4296-5-0x00007FFA707F0000-0x00007FFA71194000-memory.dmp
memory/4296-1-0x00007FFA7097F000-0x00007FFA70980000-memory.dmp
memory/4296-7-0x00007FFA707F0000-0x00007FFA71194000-memory.dmp
memory/4296-2-0x00007FFA707F0000-0x00007FFA71194000-memory.dmp
memory/4296-9-0x00007FFA707F0000-0x00007FFA71194000-memory.dmp
memory/4296-10-0x00007FFA707F0000-0x00007FFA71194000-memory.dmp
memory/4296-11-0x00007FFA707F0000-0x00007FFA71194000-memory.dmp
memory/4296-0-0x0000000000600000-0x000000000067A000-memory.dmp
memory/4296-108-0x00007FFA707F0000-0x00007FFA71194000-memory.dmp
memory/4296-118-0x00007FFA707F0000-0x00007FFA71194000-memory.dmp