Analysis
- user interaction
yes - max time kernel
149s - max time network
144s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
- submitted
07/08/2026, 21:35
General
- Target Client.exe
- Size 558KB
- Sample260807-1fth8atfra
- SHA256 3cbcd57932f4423eb93753cf1b97093d6856f16ae5a4af180048bb65fb696c84
Malware Config
Extracted
-
sheetrat
-
2.7.1
-
Sheet_tcwjcmmwqyakvk
-
91.92.47.228:1360
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
- Drops file in Program Files directory 3 IoCs
- 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 23 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 2 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
- Drops file in Program Files directory
- 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 "Microsoft Paint" /tr "C:\Program Files\Sub\Discord.exe" & exit2⤵
- Executes a command shell one-liner
- Suspicious use of WriteProcessMemory
-
C:\Windows\system32\schtasks.exeSchTaSKs /CrEAte /F /sc OnLoGoN /rl HighEst /tn "Microsoft Paint" /tr "C:\Program Files\Sub\Discord.exe"3⤵
- Scheduled Task/Job: Scheduled Task
-
-
-
C:\Windows\system32\wbem\WmiApSrv.exeC:\Windows\system32\wbem\WmiApSrv.exe1⤵
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
1Winlogon Helper DLL
1Scheduled Task/Job
1Scheduled Task
1Replay Monitor
Loading Replay Monitor...
Downloads
Discord.exe
memory/4264-6-0x00007FFF431D0000-0x00007FFF43B74000-memory.dmp
memory/4264-2-0x00007FFF431D0000-0x00007FFF43B74000-memory.dmp
memory/4264-3-0x00007FFF431D0000-0x00007FFF43B74000-memory.dmp
memory/4264-4-0x00007FFF431D0000-0x00007FFF43B74000-memory.dmp
memory/4264-5-0x00007FFF431D0000-0x00007FFF43B74000-memory.dmp
memory/4264-0-0x00007FFF4335F000-0x00007FFF43360000-memory.dmp
memory/4264-7-0x00007FFF431D0000-0x00007FFF43B74000-memory.dmp
memory/4264-8-0x00007FFF431D0000-0x00007FFF43B74000-memory.dmp
memory/4264-9-0x00007FFF431D0000-0x00007FFF43B74000-memory.dmp
memory/4264-1-0x00000000006C0000-0x0000000000752000-memory.dmp
memory/4264-44-0x00007FFF431D0000-0x00007FFF43B74000-memory.dmp
memory/4264-141-0x00007FFF431D0000-0x00007FFF43B74000-memory.dmp