Analysis
- max time kernel
149s - max time network
154s - platform
windows11-21h2_x64 - resource
win11-20260513-en - resource tags
arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
28/05/2026, 03:08
Static task
static1
Behavioral task
behavioral1
Sample
2026-05-28_fdd13f9d59a6ca1d232fec731d890fd0_amadey_elex_njrat_remcos_rhadamanthys_smoke-loader_stealc.exe
Resource
win10v2004-20260513-en
Behavioral task
behavioral2
Sample
2026-05-28_fdd13f9d59a6ca1d232fec731d890fd0_amadey_elex_njrat_remcos_rhadamanthys_smoke-loader_stealc.exe
Resource
win11-20260513-en
General
- Target 2026-05-28_fdd13f9d59a6ca1d232fec731d890fd0_amadey_elex_njrat_remcos_rhadamanthys_smoke-loader_stealc.exe
- Size 13.9MB
- Sample260528-dnbxtags6w
- SHA256 99d5bc3ec48b6dd18121f8ecccfe1d60e6360d9537d2db8096953888e6472c80
- MD5 fdd13f9d59a6ca1d232fec731d890fd0
- SHA1 0cb419b072c0d28ced726c210d90f0f84947e9b4
- SHA512 9d7062d535c727939dfa54f2b1f0ca0693db7cdcd1e719bdc4211888a516dd4df2990c277062225b7a86ef8e4ec101f9d415e91664eff2ffe39d9098f5efefe7
- SSDEEP 6144:AIzw8mFAdhAtKlQXRbeoVp59Sqer5+nDFoGCCCCCCCCCCCCCCCCCCCCCCCCCCCCn:3EidhAglQhyupLer5+nZo
- TLSH T179E6851541F80D57DA66BE34757F1B1FCCE9140A702EB7092094F1AEFAB9993C82A372
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Extracted
-
tofsee
-
vanaheim.cn
-
jotunheim.name
Signatures
- Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 3972 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\knokwguf\ImagePath = "C:\\Windows\\SysWOW64\\knokwguf\\oinlgjgi.exe" svchost.exe - Creates new service(s) 2 TTPs
- Deletes itself 1 IoCs
pid Process 4460 svchost.exe - Executes dropped EXE 1 IoCs
pid Process 2340 oinlgjgi.exe - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2340 set thread context of 4460 2340 oinlgjgi.exe 92 - Launches sc.exe 3 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 4364 sc.exe 2624 sc.exe 2504 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 queried \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh netsh.exe Key value enumerated \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh netsh.exe Key opened \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh netsh.exe - Program crash 2 IoCs
pid pid_target Process procid_target 492 2340 WerFault.exe 91 5884 4116 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 2026-05-28_fdd13f9d59a6ca1d232fec731d890fd0_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 oinlgjgi.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language netsh.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.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 sc.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language svchost.exe - Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 4116 wrote to memory of 4108 4116 2026-05-28_fdd13f9d59a6ca1d232fec731d890fd0_amadey_elex_njrat_remcos_rhadamanthys_smoke-loader_stealc.exe 80 PID 4116 wrote to memory of 5772 4116 2026-05-28_fdd13f9d59a6ca1d232fec731d890fd0_amadey_elex_njrat_remcos_rhadamanthys_smoke-loader_stealc.exe 82 PID 4116 wrote to memory of 4364 4116 2026-05-28_fdd13f9d59a6ca1d232fec731d890fd0_amadey_elex_njrat_remcos_rhadamanthys_smoke-loader_stealc.exe 84 PID 4116 wrote to memory of 2624 4116 2026-05-28_fdd13f9d59a6ca1d232fec731d890fd0_amadey_elex_njrat_remcos_rhadamanthys_smoke-loader_stealc.exe 87 PID 4116 wrote to memory of 2504 4116 2026-05-28_fdd13f9d59a6ca1d232fec731d890fd0_amadey_elex_njrat_remcos_rhadamanthys_smoke-loader_stealc.exe 89 PID 2340 wrote to memory of 4460 2340 oinlgjgi.exe 92 PID 2340 wrote to memory of 4460 2340 oinlgjgi.exe 92 PID 4116 wrote to memory of 3972 4116 2026-05-28_fdd13f9d59a6ca1d232fec731d890fd0_amadey_elex_njrat_remcos_rhadamanthys_smoke-loader_stealc.exe 96
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-05-28_fdd13f9d59a6ca1d232fec731d890fd0_amadey_elex_njrat_remcos_rhadamanthys_smoke-loader_stealc.exe"C:\Users\Admin\AppData\Local\Temp\2026-05-28_fdd13f9d59a6ca1d232fec731d890fd0_amadey_elex_njrat_remcos_rhadamanthys_smoke-loader_stealc.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4116 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\knokwguf\2⤵
- System Location Discovery: System Language Discovery
PID:4108
-
-
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\oinlgjgi.exe" C:\Windows\SysWOW64\knokwguf\2⤵
- System Location Discovery: System Language Discovery
PID:5772
-
-
C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" create knokwguf binPath= "C:\Windows\SysWOW64\knokwguf\oinlgjgi.exe /d\"C:\Users\Admin\AppData\Local\Temp\2026-05-28_fdd13f9d59a6ca1d232fec731d890fd0_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:4364
-
-
C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" description knokwguf "wifi internet conection"2⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:2624
-
-
C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" start knokwguf2⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:2504
-
-
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:3972
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4116 -s 12282⤵
- Program crash
PID:5884
-
-
C:\Windows\SysWOW64\knokwguf\oinlgjgi.exeC:\Windows\SysWOW64\knokwguf\oinlgjgi.exe /d"C:\Users\Admin\AppData\Local\Temp\2026-05-28_fdd13f9d59a6ca1d232fec731d890fd0_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:2340 -
C:\Windows\SysWOW64\svchost.exesvchost.exe2⤵
- Sets service image path in registry
- Deletes itself
- System Location Discovery: System Language Discovery
PID:4460
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2340 -s 5442⤵
- Program crash
PID:492
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 2340 -ip 23401⤵PID:4152
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 4116 -ip 41161⤵PID:652
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 12.5MB
- SHA256 60153ffa6d1e13c781954c14b85661a62bd5eecfaeeed0db89d39ca467e99e57
- MD5 05596cd6a5444bb4639b20c47297417b
- SHA1 195aed1b2227d433bbdeb2c48904fc5006b9dc6a
- SHA512 4362b7fe6fc1f68f72bcec9df91e52d39ec965cd5ebe71662a5f3948493ad65ccfb815d36e0f2554c7f7f4fb80af85d3cad1283c9d6f391ddd392f25d404f740
- SSDEEP 6144:2Izw8mFAdhAtKlQXRbeoVp59Sqer5+nDFoGCCCCCCCCCCCCCCCCCCCCCCCCCCCCH:REidhAglQhyupLer5+nZo
- TLSH T109D6851541F80D57DA66BE34757F1B1FCCE9140A702EB7092094F1AEFAB9993C82A372
- MD5 SHA1 SHA512 SSDEEP TLSH