Analysis
- max time kernel
149s - max time network
152s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
- submitted
20/04/2026, 12:59
General
- Target 2026-04-20_8208133b02d64ae5cad16cb48b27d20e_coinminer_elex_wannacry.exe
- Size 879KB
- Sample260420-p8a2ssfs6x
- SHA256 03c86728d5c3f94177223edf7910fc02290ee361917354134e7481c5d83bcef0
Malware Config
Signatures
- Family: Cosmu
Cosmu is a Windows worm written in C++.
- Detects Cosmu payload 5 IoCs
Cosmu is a worm written in C++.
- UPX dump on OEP (original entry point) 2 IoCs
- Drops startup file 1 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- UPX packed file 2 IoCs
Detects executables packed with UPX/modified UPX open source packer.
- 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 2 IoCs
- Suspicious use of SetWindowsHookEx 2 IoCs
- Suspicious use of WriteProcessMemory 11 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-04-20_8208133b02d64ae5cad16cb48b27d20e_coinminer_elex_wannacry.exe"C:\Users\Admin\AppData\Local\Temp\2026-04-20_8208133b02d64ae5cad16cb48b27d20e_coinminer_elex_wannacry.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c echo on error resume next:CreateObject("WScript.Shell").Run "C:\Users\Admin\AppData\Local\Temp\2026-04-20_8208133b02d64ae5cad16cb48b27d20e_coinminer_elex_wannacry.exe",1: >"C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\x.vbs"2⤵
- Drops startup file
- System Location Discovery: System Language Discovery
-
-
C:\Users\Admin\AppData\Local\Temp\2026-04-20_8208133b02d64ae5cad16cb48b27d20e_coinminer_elex_wannacry.exeC:\Users\Admin\AppData\Local\Temp\2026-04-20_8208133b02d64ae5cad16cb48b27d20e_coinminer_elex_wannacry.exe2⤵
- System Location Discovery: System Language Discovery
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
memory/1524-0-0x0000000000400000-0x000000000046E000-memory.dmp
memory/1524-1-0x000000000040C000-0x000000000040D000-memory.dmp
memory/1524-8-0x0000000000400000-0x000000000046E000-memory.dmp
memory/1524-6-0x00000000009C0000-0x0000000000B6C000-memory.dmp
memory/5088-3-0x0000000000400000-0x0000000000658000-memory.dmp
memory/5088-4-0x0000000000400000-0x0000000000658000-memory.dmp
memory/5088-7-0x0000000000400000-0x000000000040C000-memory.dmp
memory/5088-5-0x0000000000400000-0x0000000000658000-memory.dmp
memory/5088-9-0x0000000000400000-0x0000000000658000-memory.dmp
memory/5088-11-0x0000000000AF0000-0x0000000000C3D000-memory.dmp