Analysis
- max time kernel
150s - max time network
128s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
- submitted
31/10/2026, 10:15
General
- Target 2026-10-31_f6a4f26ead01ef435cf22363c845ff39_elex_helldown_luca-stealer_njrat_ramnit_remcos_smoke-loader.exe
- Size 337KB
- Sample261031-maa8ssha68
- SHA256 39cb4f07ec6a640c74d236233e3d874873e1f42488f6e713935693567e3985e2
Malware Config
Signatures
- Family: Ramnit
Ramnit is a versatile family that holds viruses, worms, and Trojans.
- Custom signatureUPX dump on OEP (original entry point) 2 IoCs
- Executes dropped EXE 1 IoCs
- Loads dropped DLL 1 IoCs
- UPX packed file 1 IoCs
Detects executables packed with UPX/modified UPX open source packer.
- Program crash 1 IoCs
- 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 FindShellTrayWindow 1 IoCs
- Suspicious use of WriteProcessMemory 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-10-31_f6a4f26ead01ef435cf22363c845ff39_elex_helldown_luca-stealer_njrat_ramnit_remcos_smoke-loader.exe"C:\Users\Admin\AppData\Local\Temp\2026-10-31_f6a4f26ead01ef435cf22363c845ff39_elex_helldown_luca-stealer_njrat_ramnit_remcos_smoke-loader.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\2026-10-31_f6a4f26ead01ef435cf22363c845ff39_elex_helldown_luca-stealer_njrat_ramnit_remcos_smoke-loadermgr.exeC:\Users\Admin\AppData\Local\Temp\2026-10-31_f6a4f26ead01ef435cf22363c845ff39_elex_helldown_luca-stealer_njrat_ramnit_remcos_smoke-loadermgr.exe2⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3412 -s 5243⤵
- Program crash
-
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 3412 -ip 34121⤵
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
2026-10-31_f6a4f26ead01ef435cf22363c845ff39_elex_helldown_luca-stealer_njrat_ramnit_remcos_smoke-loadermgr.exe
~TMC455.tmp
memory/3200-0-0x0000000000400000-0x000000000047B000-memory.dmp
memory/3200-10-0x0000000000400000-0x000000000047B000-memory.dmp
memory/3412-5-0x0000000000400000-0x0000000000432000-memory.dmp
memory/3412-7-0x0000000002070000-0x00000000020A2000-memory.dmp
memory/3412-9-0x0000000077798000-0x0000000077799000-memory.dmp
memory/3412-11-0x0000000000400000-0x0000000000432000-memory.dmp