Analysis
- max time kernel
900s - max time network
902s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
- submitted
08/08/2026, 00:56
General
- Target Client123.exe
- Size 371KB
- Sample260808-banncaztfx
- SHA256 65d95a13519bc9a2b3048a6af446fd8a8d1cda06df24518d3b24917a86c1b8e5
Malware Config
Extracted
-
sheetrat
-
2.7.1
-
Sheet_tbvykmdftx
-
91.92.47.228:1313
Signatures
- Family: Sheetrat, NonEuclid rat
Sheetrat aka NonEuclid RAT is a trojan written in C#.
- Detects Sheetrat obfuscated V1.8 and higher 2 IoCs
Sheetrat aka NonEuclid RAT is a trojan written in C#.
- Detects Sheetrat obfuscated version 2 IoCs
- Modifies WinLogon for persistence 2 TTPs 1 IoCs
- Executes dropped EXE 2 IoCs
- Adds Run key to start application 2 TTPs 1 IoCs
- Drops file in Program Files directory 4 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.
- 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 58 IoCs
- Suspicious use of AdjustPrivilegeToken 3 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\Client123.exe"C:\Users\Admin\AppData\Local\Temp\Client123.exe"1⤵
- Modifies WinLogon for persistence
- Adds Run key to start application
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SYSTEM32\CMD.exe"CMD" /C SchTaSKs /CrEAte /F /sc OnLoGoN /rl HighEst /tn "TeamViewer Host" /tr "C:\Program Files\xdwdMicrosoft Dynamics CRM.exe" & exit2⤵
- Executes a command shell one-liner
- Suspicious use of WriteProcessMemory
-
C:\Windows\system32\schtasks.exeSchTaSKs /CrEAte /F /sc OnLoGoN /rl HighEst /tn "TeamViewer Host" /tr "C:\Program Files\xdwdMicrosoft Dynamics CRM.exe"3⤵
- Scheduled Task/Job: Scheduled Task
-
-
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C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCookies\xdwdMicrosoft Paint.exe"C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCookies\xdwdMicrosoft Paint.exe"1⤵
- Executes dropped EXE
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Program Files\xdwdMicrosoft Dynamics CRM.exe"C:\Program Files\xdwdMicrosoft Dynamics CRM.exe"2⤵
- Executes dropped EXE
- Drops file in Program Files directory
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\wbem\WmiApSrv.exeC:\Windows\system32\wbem\WmiApSrv.exe1⤵
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k GPSvcGroup1⤵
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C:\Windows\System32\SecurityHealthHost.exe\\?\C:\Windows\System32\SecurityHealthHost.exe {08728914-3F57-4D52-9E31-49DAECA5A80A} -Embedding1⤵
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
1Scheduled Task/Job
1Scheduled Task
1Replay Monitor
Loading Replay Monitor...
Downloads
xdwdMicrosoft Dynamics CRM.exe
memory/2756-21-0x00007FFDBBB10000-0x00007FFDBC4B4000-memory.dmp
memory/2756-92-0x00007FFDBBB10000-0x00007FFDBC4B4000-memory.dmp
memory/2756-3-0x00007FFDBBB10000-0x00007FFDBC4B4000-memory.dmp
memory/2756-4-0x00007FFDBBB10000-0x00007FFDBC4B4000-memory.dmp
memory/2756-5-0x00007FFDBBB10000-0x00007FFDBC4B4000-memory.dmp
memory/2756-6-0x00007FFDBBB10000-0x00007FFDBC4B4000-memory.dmp
memory/2756-1-0x00007FFDBBC9F000-0x00007FFDBBCA0000-memory.dmp
memory/2756-0-0x0000000000840000-0x00000000008A4000-memory.dmp
memory/2756-2-0x00007FFDBBB10000-0x00007FFDBC4B4000-memory.dmp
memory/5368-44-0x00007FFDBBB10000-0x00007FFDBC4B4000-memory.dmp
memory/5368-43-0x00007FFDBBB10000-0x00007FFDBC4B4000-memory.dmp
memory/5368-45-0x00007FFDBBB10000-0x00007FFDBC4B4000-memory.dmp
memory/5368-60-0x00007FFDBBB10000-0x00007FFDBC4B4000-memory.dmp
memory/5368-61-0x00007FFDBBB10000-0x00007FFDBC4B4000-memory.dmp
memory/5368-62-0x00007FFDBBB10000-0x00007FFDBC4B4000-memory.dmp
memory/5368-63-0x00007FFDBBB10000-0x00007FFDBC4B4000-memory.dmp
memory/5368-42-0x00007FFDBBB10000-0x00007FFDBC4B4000-memory.dmp
memory/5368-109-0x00007FFDBBB10000-0x00007FFDBC4B4000-memory.dmp