Analysis
- max time kernel
150s - max time network
135s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
- submitted
04/08/2026, 14:01
General
- Target 2026-08-04_d3861b1be6d7a8a62d61abcd2244c452_elex_wannacry.exe
- Size 55KB
- Sample260804-rb1masscmg
- SHA256 1f49d6dbaaa7df7ca09f464ea4165bfe3c80d7cffa4c8938e12f7851c6f4c76f
Malware Config
Signatures
- 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.
- Executes dropped EXE 2 IoCs
- Adds Run key to start application 2 TTPs 4 IoCs
- System Location Discovery: System Language Discovery 1 TTPs 3 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious behavior: EnumeratesProcesses 64 IoCs
- Suspicious use of WriteProcessMemory 4 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\2026-08-04_d3861b1be6d7a8a62d61abcd2244c452_elex_wannacry.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-04_d3861b1be6d7a8a62d61abcd2244c452_elex_wannacry.exe"1⤵
- Drops file in Drivers directory
- Sets service image path in registry
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\2026-08-04_d3861b1be6d7a8a62d61abcd2244c452_elex_wannacry.exeC:\Users\Admin\AppData\Local\Temp\2026-08-04_d3861b1be6d7a8a62d61abcd2244c452_elex_wannacry.exe2⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\2026-08-04_d3861b1be6d7a8a62d61abcd2244c452_elex_wannacry.exeC:\Users\Admin\AppData\Local\Temp\2026-08-04_d3861b1be6d7a8a62d61abcd2244c452_elex_wannacry.exe3⤵
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C:\Users\Admin\AppData\Local\Temp\2026-08-04_d3861b1be6d7a8a62d61abcd2244c452_elex_wannacry.exeC:\Users\Admin\AppData\Local\Temp\2026-08-04_d3861b1be6d7a8a62d61abcd2244c452_elex_wannacry.exe2⤵
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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
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\Local Settings\Application Data\cftmon.exe"C:\Users\Admin\Local Settings\Application Data\cftmon.exe"2⤵
- Executes dropped EXE
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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
memory/3152-12-0x0000000000400000-0x0000000000421000-memory.dmp
memory/3952-13-0x0000000000400000-0x0000000000421000-memory.dmp
memory/5344-11-0x0000000000400000-0x0000000000421000-memory.dmp
memory/5564-0-0x0000000000400000-0x0000000000421000-memory.dmp
memory/5564-8-0x0000000000400000-0x0000000000421000-memory.dmp
memory/5680-9-0x0000000000400000-0x0000000000421000-memory.dmp
memory/5768-10-0x0000000000400000-0x0000000000421000-memory.dmp