Analysis
- max time kernel
148s - max time network
139s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
- submitted
20/08/2026, 08:43
General
- Target 2026-08-20_8c79bb85154c669fd56e6bef6ac0afef_elex_wannacry.exe
- Size 88KB
- Sample260820-kms82ashnc
- SHA256 16d966e4e5bbcc1711c0ca9a48bb48c333cc4dab873fbb94cc1aaafd666f96f0
Malware Config
Signatures
- UPX dump on OEP (original entry point) 4 IoCs
- Drops file in Drivers directory 2 IoCs
- Sets service image path in registry 3 TTPs 1 IoCs
This determines the executable launched when a service starts. It can be used to establish persistence.
- ACProtect 1.3x - 1.4x DLL software 3 IoCs
Detects file using ACProtect software.
- Executes dropped EXE 1 IoCs
- Loads dropped DLL 1 IoCs
- Adds Run key to start application 2 TTPs 4 IoCs
- Drops file in System32 directory 1 IoCs
- UPX packed file 3 IoCs
Detects executables packed with UPX/modified UPX open source packer.
- System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious use of SetWindowsHookEx 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-20_8c79bb85154c669fd56e6bef6ac0afef_elex_wannacry.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-20_8c79bb85154c669fd56e6bef6ac0afef_elex_wannacry.exe"1⤵
- Drops file in Drivers directory
- Sets service image path in registry
- Loads dropped DLL
- Adds Run key to start application
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
-
C:\Users\Admin\Local Settings\Application Data\cftmon.exe"C:\Users\Admin\Local Settings\Application Data\cftmon.exe"1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
Network
MITRE ATT&CK Enterprise v16
Persistence
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
2Create or Modify System Process
1Windows Service
1Replay Monitor
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Downloads
cftmon.exe
msftp.dll
memory/476-7-0x0000000000400000-0x0000000000411000-memory.dmp
memory/1300-0-0x0000000000400000-0x0000000000411000-memory.dmp
memory/1300-13-0x0000000010000000-0x000000001010B000-memory.dmp
memory/1300-14-0x0000000000400000-0x0000000000411000-memory.dmp
memory/1300-15-0x0000000010000000-0x000000001010B000-memory.dmp