Analysis
- max time kernel
149s - max time network
150s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
21/04/2026, 12:44
Static task
static1
Behavioral task
behavioral1
Sample
2026-04-21_40250e97b15f0de795c99103a60b53c7_amadey_elex_njrat_remcos_rhadamanthys_smoke-loader_stealc.exe
Resource
win10v2004-20260130-en
Behavioral task
behavioral2
Sample
2026-04-21_40250e97b15f0de795c99103a60b53c7_amadey_elex_njrat_remcos_rhadamanthys_smoke-loader_stealc.exe
Resource
win11-20260130-en
General
- Target 2026-04-21_40250e97b15f0de795c99103a60b53c7_amadey_elex_njrat_remcos_rhadamanthys_smoke-loader_stealc.exe
- Size 10.5MB
- Sample260421-pyyecaav4t
- SHA256 5495f47732928fffb0ff4da2691b2e4366c3f7b3997c5b39f951596dfedd2fc5
- MD5 40250e97b15f0de795c99103a60b53c7
- SHA1 f61a651d272aa48023641d5eb2e40104d49a4004
- SHA512 bd925356a1d6d621146b4780d0d34ba65287ed67bfa1f60e6967678a7c2b675c43e45567e4cdb5780f7ddf110e028b0ab7023e134dc50889b3fb5a9ee18361be
- SSDEEP 6144:mIzw8mFAdhAtKlQXRbeoVp59Sqer5+nDFoGCCCCCCCCCCCCCCCCCCCCCCCCCCCCi:BEidhAglQhyupLer5+nZo
- TLSH T148B6851541F80D57DA66BE34757F1B1FCCE9140A702EB7092094F1AEFAB9993C82A372
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Extracted
-
tofsee
-
vanaheim.cn
-
jotunheim.name
Signatures
- Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 1380 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\axzdmmjn\ImagePath = "C:\\Windows\\SysWOW64\\axzdmmjn\\ovuhppxb.exe" svchost.exe - Creates new service(s) 2 TTPs
- Deletes itself 1 IoCs
pid Process 2024 svchost.exe - Executes dropped EXE 1 IoCs
pid Process 600 ovuhppxb.exe - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 600 set thread context of 2024 600 ovuhppxb.exe 92 - Launches sc.exe 3 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 1596 sc.exe 2964 sc.exe 2444 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 2284 600 WerFault.exe 91 4220 3440 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 ovuhppxb.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 2026-04-21_40250e97b15f0de795c99103a60b53c7_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 sc.exe - Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 3440 wrote to memory of 3952 3440 2026-04-21_40250e97b15f0de795c99103a60b53c7_amadey_elex_njrat_remcos_rhadamanthys_smoke-loader_stealc.exe 80 PID 3440 wrote to memory of 1272 3440 2026-04-21_40250e97b15f0de795c99103a60b53c7_amadey_elex_njrat_remcos_rhadamanthys_smoke-loader_stealc.exe 82 PID 3440 wrote to memory of 1596 3440 2026-04-21_40250e97b15f0de795c99103a60b53c7_amadey_elex_njrat_remcos_rhadamanthys_smoke-loader_stealc.exe 84 PID 3440 wrote to memory of 2964 3440 2026-04-21_40250e97b15f0de795c99103a60b53c7_amadey_elex_njrat_remcos_rhadamanthys_smoke-loader_stealc.exe 87 PID 3440 wrote to memory of 2444 3440 2026-04-21_40250e97b15f0de795c99103a60b53c7_amadey_elex_njrat_remcos_rhadamanthys_smoke-loader_stealc.exe 89 PID 600 wrote to memory of 2024 600 ovuhppxb.exe 92 PID 600 wrote to memory of 2024 600 ovuhppxb.exe 92 PID 3440 wrote to memory of 1380 3440 2026-04-21_40250e97b15f0de795c99103a60b53c7_amadey_elex_njrat_remcos_rhadamanthys_smoke-loader_stealc.exe 96
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-04-21_40250e97b15f0de795c99103a60b53c7_amadey_elex_njrat_remcos_rhadamanthys_smoke-loader_stealc.exe"C:\Users\Admin\AppData\Local\Temp\2026-04-21_40250e97b15f0de795c99103a60b53c7_amadey_elex_njrat_remcos_rhadamanthys_smoke-loader_stealc.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3440 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\axzdmmjn\2⤵
- System Location Discovery: System Language Discovery
PID:3952
-
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ovuhppxb.exe" C:\Windows\SysWOW64\axzdmmjn\2⤵
- System Location Discovery: System Language Discovery
PID:1272
-
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C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" create axzdmmjn binPath= "C:\Windows\SysWOW64\axzdmmjn\ovuhppxb.exe /d\"C:\Users\Admin\AppData\Local\Temp\2026-04-21_40250e97b15f0de795c99103a60b53c7_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:1596
-
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C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" description axzdmmjn "wifi internet conection"2⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:2964
-
-
C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" start axzdmmjn2⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:2444
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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:1380
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-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3440 -s 12802⤵
- Program crash
PID:4220
-
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C:\Windows\SysWOW64\axzdmmjn\ovuhppxb.exeC:\Windows\SysWOW64\axzdmmjn\ovuhppxb.exe /d"C:\Users\Admin\AppData\Local\Temp\2026-04-21_40250e97b15f0de795c99103a60b53c7_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:600 -
C:\Windows\SysWOW64\svchost.exesvchost.exe2⤵
- Sets service image path in registry
- Deletes itself
- System Location Discovery: System Language Discovery
PID:2024
-
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 600 -s 5442⤵
- Program crash
PID:2284
-
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 600 -ip 6001⤵PID:2748
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 3440 -ip 34401⤵PID:4680
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\ovuhppxb.exe
- Size 14.1MB
- SHA256 2dfbfd78f93e762300e80a660f4a2d3960fbd2dbb0ca8581cd0381e819eee5d2
- MD5 4a44b96aab3c61e73229ed1eb742cb5a
- SHA1 4e2d3e18e75b17043e277ba2025b36df8398bade
- SHA512 3bf7caa19dd31dbe8452c42dcc986643627efbba36423fd128b028f318e2289f8d8d96a2bfcd8cd5218dbc2c4da90ea18e530822c3fc9e74ec0f1f22a71ecdb6
- SSDEEP 6144:0Izw8mFAdhAtKlQXRbeoVp59Sqer5+nDFoGCCCCCCCCCCCCCCCCCCCCCCCCCCCCn:zEidhAglQhyupLer5+nZo
- TLSH T1D1E6851541F80D57DA66BE34757F1B1FCCE9140A702EB7092094F1AEFAB9993C82A372
- MD5 SHA1 SHA512 SSDEEP TLSH