Analysis
- max time kernel
149s - max time network
149s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
16/04/2026, 02:31
Static task
static1
Behavioral task
behavioral1
Sample
2026-04-16_91089bdc9789d197670222d5e5b7d68a_amadey_elex_njrat_remcos_rhadamanthys_smoke-loader_stealc.exe
Resource
win10v2004-20260130-en
Behavioral task
behavioral2
Sample
2026-04-16_91089bdc9789d197670222d5e5b7d68a_amadey_elex_njrat_remcos_rhadamanthys_smoke-loader_stealc.exe
Resource
win11-20260130-en
General
- Target 2026-04-16_91089bdc9789d197670222d5e5b7d68a_amadey_elex_njrat_remcos_rhadamanthys_smoke-loader_stealc.exe
- Size 10.8MB
- Sample260416-czzycaet3r
- SHA256 3e44e691a7bf85c44576c42129f547ad19eab46c4557d930c0737b311de5ea96
- MD5 91089bdc9789d197670222d5e5b7d68a
- SHA1 d4a8b785c34e155154c3e487f07fad875a7eabaf
- SHA512 26c22d82d653c4e0a72cb01495f896e216882141b11e8d469e07b8ceb569acb63397c95e864dfd7a310ed5908df8dc49aa1bc61446b95a04d44a5491076801a5
- SSDEEP 6144:PIzw8mFAdhAtKlQXRbeoVp59Sqer5+nDFoGCCCCCCCCCCCCCCCCCCCCCCCCCCCCi:gEidhAglQhyupLer5+nZo
- TLSH T1A2B6851541F80D57DA66BE34757F1B1FCCE9140A702EB7092094F1AEFAB9993C82A372
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Extracted
-
tofsee
-
vanaheim.cn
-
jotunheim.name
Signatures
- Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 3696 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\ooxmfiyh\ImagePath = "C:\\Windows\\SysWOW64\\ooxmfiyh\\dtpezrpx.exe" svchost.exe - Creates new service(s) 2 TTPs
- Deletes itself 1 IoCs
pid Process 1872 svchost.exe - Executes dropped EXE 1 IoCs
pid Process 1128 dtpezrpx.exe - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1128 set thread context of 1872 1128 dtpezrpx.exe 90 - Launches sc.exe 3 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 412 sc.exe 4344 sc.exe 1032 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 2036 1128 WerFault.exe 89 1520 1316 WerFault.exe 77 - 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 netsh.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language svchost.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2026-04-16_91089bdc9789d197670222d5e5b7d68a_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 cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language sc.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language dtpezrpx.exe - Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 1316 wrote to memory of 4724 1316 2026-04-16_91089bdc9789d197670222d5e5b7d68a_amadey_elex_njrat_remcos_rhadamanthys_smoke-loader_stealc.exe 78 PID 1316 wrote to memory of 1400 1316 2026-04-16_91089bdc9789d197670222d5e5b7d68a_amadey_elex_njrat_remcos_rhadamanthys_smoke-loader_stealc.exe 80 PID 1316 wrote to memory of 412 1316 2026-04-16_91089bdc9789d197670222d5e5b7d68a_amadey_elex_njrat_remcos_rhadamanthys_smoke-loader_stealc.exe 82 PID 1316 wrote to memory of 4344 1316 2026-04-16_91089bdc9789d197670222d5e5b7d68a_amadey_elex_njrat_remcos_rhadamanthys_smoke-loader_stealc.exe 84 PID 1316 wrote to memory of 1032 1316 2026-04-16_91089bdc9789d197670222d5e5b7d68a_amadey_elex_njrat_remcos_rhadamanthys_smoke-loader_stealc.exe 87 PID 1128 wrote to memory of 1872 1128 dtpezrpx.exe 90 PID 1128 wrote to memory of 1872 1128 dtpezrpx.exe 90 PID 1316 wrote to memory of 3696 1316 2026-04-16_91089bdc9789d197670222d5e5b7d68a_amadey_elex_njrat_remcos_rhadamanthys_smoke-loader_stealc.exe 94
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-04-16_91089bdc9789d197670222d5e5b7d68a_amadey_elex_njrat_remcos_rhadamanthys_smoke-loader_stealc.exe"C:\Users\Admin\AppData\Local\Temp\2026-04-16_91089bdc9789d197670222d5e5b7d68a_amadey_elex_njrat_remcos_rhadamanthys_smoke-loader_stealc.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1316 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ooxmfiyh\2⤵
- System Location Discovery: System Language Discovery
PID:4724
-
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\dtpezrpx.exe" C:\Windows\SysWOW64\ooxmfiyh\2⤵
- System Location Discovery: System Language Discovery
PID:1400
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C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" create ooxmfiyh binPath= "C:\Windows\SysWOW64\ooxmfiyh\dtpezrpx.exe /d\"C:\Users\Admin\AppData\Local\Temp\2026-04-16_91089bdc9789d197670222d5e5b7d68a_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:412
-
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C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" description ooxmfiyh "wifi internet conection"2⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:4344
-
-
C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" start ooxmfiyh2⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:1032
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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:3696
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1316 -s 6842⤵
- Program crash
PID:1520
-
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C:\Windows\SysWOW64\ooxmfiyh\dtpezrpx.exeC:\Windows\SysWOW64\ooxmfiyh\dtpezrpx.exe /d"C:\Users\Admin\AppData\Local\Temp\2026-04-16_91089bdc9789d197670222d5e5b7d68a_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:1128 -
C:\Windows\SysWOW64\svchost.exesvchost.exe2⤵
- Sets service image path in registry
- Deletes itself
- System Location Discovery: System Language Discovery
PID:1872
-
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1128 -s 5402⤵
- Program crash
PID:2036
-
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 1128 -ip 11281⤵PID:3020
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 1316 -ip 13161⤵PID:2576
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\dtpezrpx.exe
- Size 10.4MB
- SHA256 1cc12ca27c37315a472e549791a6996ce46895531f7d1f42d59a0eaadbdc3028
- MD5 aa16b698a20e421e4aa922e50368d02c
- SHA1 00ed3651c0e2f6c8d86caa75e55331321a6be20b
- SHA512 e464250c39a9142e482c0d42c0f31f5801608ee6d41b0b36b4ba309815377ee38c5a7031effee213cfd56a41e1ad13a032c2543722fd14cd27d1f1fd935e24ac
- SSDEEP 6144:oIzw8mFAdhAtKlQXRbeoVp59Sqer5+nDFoGCCCCCCCCCCCCCCCCCCCCCCCCCCCCi:vEidhAglQhyupLer5+nZo
- TLSH T10BB6851541F80D57DA66BE34757F1B1FCCE9140A702EB7092094F1AEFAB9993C82A372
- MD5 SHA1 SHA512 SSDEEP TLSH