Analysis
- max time kernel
149s - max time network
144s - platform
windows11-21h2_x64 - resource
win11-20260513-en - resource tags
arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
03/06/2026, 22:28
Static task
static1
Behavioral task
behavioral1
Sample
2026-06-03_4c99e7df3001d894a3e73b47eee46311_amadey_elex_njrat_remcos_rhadamanthys_smoke-loader_stealc.exe
Resource
win10v2004-20260513-en
Behavioral task
behavioral2
Sample
2026-06-03_4c99e7df3001d894a3e73b47eee46311_amadey_elex_njrat_remcos_rhadamanthys_smoke-loader_stealc.exe
Resource
win11-20260513-en
General
- Target 2026-06-03_4c99e7df3001d894a3e73b47eee46311_amadey_elex_njrat_remcos_rhadamanthys_smoke-loader_stealc.exe
- Size 10.3MB
- Sample260603-2dn2dsez7s
- SHA256 db09bcc3d540ad33bc6430bc273e66d5ec2ae86e7da7af2b6e248da5ac2bb2a9
- MD5 4c99e7df3001d894a3e73b47eee46311
- SHA1 c5dfba7d91f164e6547d940d3b6ab490143cefdc
- SHA512 5874609c0279fc1fa50a3ae20660db435fbcaacf8b825a4652011bbe2aef04b1a5b1e763fa0e30cba59789f82f87ca7ecc92c0db1ab547d5b3758fd82a9c2910
- SSDEEP 6144:YIzw8mFAdhAtKlQXRbeoVp59Sqer5+nDFoGCCCCCCCCCCCCCCCCCCCCCCCCCCCCn:fEidhAglQhyupLer5+nZo
- TLSH T10EB6851541F80D57DA66BE34757F1B1FCCE9140A702EB7092094F1AEFAB9993C82A372
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Extracted
-
tofsee
-
vanaheim.cn
-
jotunheim.name
Signatures
- Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 5996 netsh.exe - 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.
description ioc Process Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\cmdumtcv\ImagePath = "C:\\Windows\\SysWOW64\\cmdumtcv\\oinlgjgi.exe" svchost.exe - Creates new service(s) 2 TTPs
- Deletes itself 1 IoCs
pid Process 5888 svchost.exe - Executes dropped EXE 1 IoCs
pid Process 3292 oinlgjgi.exe - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 3292 set thread context of 5888 3292 oinlgjgi.exe 92 - Launches sc.exe 3 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 5088 sc.exe 2172 sc.exe 2392 sc.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs
Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.
description ioc Process Key opened \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh netsh.exe Key queried \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh netsh.exe Key value enumerated \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh netsh.exe - Program crash 2 IoCs
pid pid_target Process procid_target 3624 3292 WerFault.exe 91 4444 2984 WerFault.exe 79 - System Location Discovery: System Language Discovery 1 TTPs 9 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language sc.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language sc.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language sc.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language oinlgjgi.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language netsh.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2026-06-03_4c99e7df3001d894a3e73b47eee46311_amadey_elex_njrat_remcos_rhadamanthys_smoke-loader_stealc.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language svchost.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe - Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 2984 wrote to memory of 5104 2984 2026-06-03_4c99e7df3001d894a3e73b47eee46311_amadey_elex_njrat_remcos_rhadamanthys_smoke-loader_stealc.exe 80 PID 2984 wrote to memory of 4456 2984 2026-06-03_4c99e7df3001d894a3e73b47eee46311_amadey_elex_njrat_remcos_rhadamanthys_smoke-loader_stealc.exe 82 PID 2984 wrote to memory of 5088 2984 2026-06-03_4c99e7df3001d894a3e73b47eee46311_amadey_elex_njrat_remcos_rhadamanthys_smoke-loader_stealc.exe 84 PID 2984 wrote to memory of 2172 2984 2026-06-03_4c99e7df3001d894a3e73b47eee46311_amadey_elex_njrat_remcos_rhadamanthys_smoke-loader_stealc.exe 87 PID 2984 wrote to memory of 2392 2984 2026-06-03_4c99e7df3001d894a3e73b47eee46311_amadey_elex_njrat_remcos_rhadamanthys_smoke-loader_stealc.exe 89 PID 3292 wrote to memory of 5888 3292 oinlgjgi.exe 92 PID 3292 wrote to memory of 5888 3292 oinlgjgi.exe 92 PID 2984 wrote to memory of 5996 2984 2026-06-03_4c99e7df3001d894a3e73b47eee46311_amadey_elex_njrat_remcos_rhadamanthys_smoke-loader_stealc.exe 96
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-06-03_4c99e7df3001d894a3e73b47eee46311_amadey_elex_njrat_remcos_rhadamanthys_smoke-loader_stealc.exe"C:\Users\Admin\AppData\Local\Temp\2026-06-03_4c99e7df3001d894a3e73b47eee46311_amadey_elex_njrat_remcos_rhadamanthys_smoke-loader_stealc.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2984 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\cmdumtcv\2⤵
- System Location Discovery: System Language Discovery
PID:5104
-
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\oinlgjgi.exe" C:\Windows\SysWOW64\cmdumtcv\2⤵
- System Location Discovery: System Language Discovery
PID:4456
-
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C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" create cmdumtcv binPath= "C:\Windows\SysWOW64\cmdumtcv\oinlgjgi.exe /d\"C:\Users\Admin\AppData\Local\Temp\2026-06-03_4c99e7df3001d894a3e73b47eee46311_amadey_elex_njrat_remcos_rhadamanthys_smoke-loader_stealc.exe\"" type= own start= auto DisplayName= "wifi support"2⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:5088
-
-
C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" description cmdumtcv "wifi internet conection"2⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:2172
-
-
C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" start cmdumtcv2⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:2392
-
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C:\Windows\SysWOW64\netsh.exe"C:\Windows\System32\netsh.exe" advfirewall firewall add rule name="Host-process for services of Windows" dir=in action=allow program="C:\Windows\SysWOW64\svchost.exe" enable=yes>nul2⤵
- Modifies Windows Firewall
- Event Triggered Execution: Netsh Helper DLL
- System Location Discovery: System Language Discovery
PID:5996
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2984 -s 8242⤵
- Program crash
PID:4444
-
-
C:\Windows\SysWOW64\cmdumtcv\oinlgjgi.exeC:\Windows\SysWOW64\cmdumtcv\oinlgjgi.exe /d"C:\Users\Admin\AppData\Local\Temp\2026-06-03_4c99e7df3001d894a3e73b47eee46311_amadey_elex_njrat_remcos_rhadamanthys_smoke-loader_stealc.exe"1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3292 -
C:\Windows\SysWOW64\svchost.exesvchost.exe2⤵
- Sets service image path in registry
- Deletes itself
- System Location Discovery: System Language Discovery
PID:5888
-
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3292 -s 5562⤵
- Program crash
PID:3624
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 3292 -ip 32921⤵PID:4216
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 2984 -ip 29841⤵PID:4212
Network
MITRE ATT&CK Enterprise v16
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
3Windows Service
3Event Triggered Execution
1Netsh Helper DLL
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
3Windows Service
3Event Triggered Execution
1Netsh Helper DLL
1Defense Evasion
Impair Defenses
1Disable or Modify System Firewall
1Modify Registry
1Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\oinlgjgi.exe
- Size 13.8MB
- SHA256 91c4ebcbd77f0e90ff0a595664e4a4d6ef13b08126962ea31722f20a38d69330
- MD5 d609bed222a238f6dcee083fb78bfb93
- SHA1 ba17840e14d1fc482c4bb5b1e00ca9e0f9259791
- SHA512 2769e062bf79edb4fe52928abf0a53bb9e7fe71c7e5f9d945ae23d7c26e86ca1018b012c5719afc98915ca331d9644d6eab23eeb7f14ad69723a0c78e65dc5cb
- SSDEEP 6144:QIzw8mFAdhAtKlQXRbeoVp59Sqer5+nDFoGCCCCCCCCCCCCCCCCCCCCCCCCCCCCi:HEidhAglQhyupLer5+nZo
- TLSH T13EE6851541F80D57DA66BE34757F1B1FCCE9140A702EB7092094F1AEFAB9993C82A372
- MD5 SHA1 SHA512 SSDEEP TLSH