Analysis
- user interaction
yes - max time kernel
148s - max time network
150s - platform
windows11-21h2_x64 - resource
win11-20260513-en - resource tags
- submitted
10/09/2026, 12:14
General
- Target DeltaCrack2026.exe
- Size 30.0MB
- Sample260910-pefeeswwgy
- SHA256 3fe00a92edf86b1567c9f27c3e2d9d8020957a3d073b4a149915c5a50e471ceb
Malware Config
Extracted
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sheetrat
-
1.8
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pidormamyebalmegaportiki-33998.portmap.host:33998
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#.
- 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 7 IoCs
- Loads dropped DLL 7 IoCs
- Looks up external IP address via web service 1 TTPs 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Drops file in System32 directory 7 IoCs
- Drops file in Windows directory 9 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Executes a command shell one-liner 1 TTPs 2 IoCs
Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.
- Modifies registry class 2 IoCs
- Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious use of AdjustPrivilegeToken 8 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 8 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\DeltaCrack2026.exe"C:\Users\Admin\AppData\Local\Temp\DeltaCrack2026.exe"1⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\DeltaCrack.exe"C:\Users\Admin\AppData\Local\Temp\DeltaCrack.exe"2⤵
- Modifies WinLogon for persistence
- Executes dropped EXE
- Drops file in System32 directory
- Drops file in Windows directory
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SYSTEM32\CMD.exe"CMD" netsh advfirewall firewall add rule name=">B"YXZIQX"dEX(" dir=in action=allow program="C:\Windows\System32\xdwdDefender.exe" enable=yes & exit3⤵
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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\System32\xdwdDefender.exe" /RL HIGHEST & exit3⤵
- Executes a command shell one-liner
- 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\System32\xdwdDefender.exe" /RL HIGHEST4⤵
- Scheduled Task/Job: Scheduled Task
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-
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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\xdwdMalwareDef.exe" /RL HIGHEST & exit3⤵
- Executes a command shell one-liner
- 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\xdwdMalwareDef.exe" /RL HIGHEST4⤵
- Scheduled Task/Job: Scheduled Task
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-
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C:\Windows\System32\xdwdDefender.exe"C:\Windows\System32\xdwdDefender.exe"3⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in System32 directory
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
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-
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C:\Users\Admin\AppData\Local\Temp\delta-loader.exe"C:\Users\Admin\AppData\Local\Temp\delta-loader.exe"2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
-
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C:\Windows\Web\xdwdMalwareDef.exeC:\Windows\Web\xdwdMalwareDef.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in System32 directory
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\System32\xdwdDefender.exeC:\Windows\System32\xdwdDefender.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in System32 directory
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\MiniSearchHost.exe"C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\MiniSearchHost.exe" -ServerName:MiniSearchUI.AppXj3y73at8fy1htwztzxs68sxx1v7cksp7.mca1⤵
- Modifies registry class
- Suspicious use of SetWindowsHookEx
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C:\Windows\System32\xdwdDefender.exeC:\Windows\System32\xdwdDefender.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in System32 directory
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\System32\xdwdDefender.exeC:\Windows\System32\xdwdDefender.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in System32 directory
- Drops file in Windows directory
- 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
1Winlogon Helper DLL
1Event Triggered Execution
1AppInit DLLs
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Boot or Logon Autostart Execution
1Winlogon Helper DLL
1Event Triggered Execution
1AppInit DLLs
1Scheduled Task/Job
1Scheduled Task
1Replay Monitor
Loading Replay Monitor...
Downloads
xdwdDefender.exe.log
DeltaCrack.exe
delta-loader.exe
xdwd.dll
memory/2140-13-0x0000000000640000-0x00000000006C4000-memory.dmp
memory/4156-26-0x00000000007F0000-0x0000000001A12000-memory.dmp
memory/4176-0-0x00000000002C0000-0x000000000152E000-memory.dmp
memory/4176-1-0x000000001CDD0000-0x000000001CDE0000-memory.dmp