Analysis
- max time kernel
148s - max time network
127s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
- submitted
28/07/2026, 23:13
General
- Target 2026-07-28_3770c2a7775ba49902709abe33bf6a65_elex_nitol_wannacry.exe
- Size 162KB
- Sample260728-27menazyhs
- SHA256 4d8bad11ddb7fb7c42004c769b14f8342533c5caf06d9f0bce9e27c1e278196f
Score
9/10
Malware Config
Signatures
- Detects Windows executables referencing non-Windows User-Agents 4 IoCs
- UPX dump on OEP (original entry point) 4 IoCs
- Sets file to hidden 1 TTPs 1 IoCs
Modifies file attributes to stop it showing in Explorer etc.
- Executes dropped EXE 1 IoCs
- Indicator Removal: File Deletion 1 TTPs
Adversaries may delete files left behind by the actions of their intrusion activity.
- UPX packed file 4 IoCs
Detects executables packed with UPX/modified UPX open source packer.
- Drops file in Windows directory 3 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 4 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 2 IoCs
- Views/modifies file attributes 1 TTPs 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-07-28_3770c2a7775ba49902709abe33bf6a65_elex_nitol_wannacry.exe"C:\Users\Admin\AppData\Local\Temp\2026-07-28_3770c2a7775ba49902709abe33bf6a65_elex_nitol_wannacry.exe"1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\attrib.exeattrib +a +s +h +r C:\Windows\Debug\ycghost.exe2⤵
- Sets file to hidden
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Views/modifies file attributes
-
-
C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\2026-0~1.EXE > nul2⤵
- System Location Discovery: System Language Discovery
-
-
C:\Windows\Debug\ycghost.exeC:\Windows\Debug\ycghost.exe1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Checks processor information in registry
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
ycghost.exe
memory/3472-5-0x0000000000400000-0x0000000000428000-memory.dmp
memory/4336-0-0x0000000000400000-0x0000000000428000-memory.dmp
memory/4336-4-0x0000000000400000-0x0000000000428000-memory.dmp