Analysis
- max time kernel
148s - max time network
151s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
04/08/2026, 10:49
Static task
static1
Behavioral task
behavioral1
Sample
2026-08-03_91458b82bd53c7edd9d5c23a3f2e5afd_amadey_elex_njrat_remcos_rhadamanthys_smoke-loader_stealc.exe
Resource
win10v2004-20260513-en
Behavioral task
behavioral2
Sample
2026-08-03_91458b82bd53c7edd9d5c23a3f2e5afd_amadey_elex_njrat_remcos_rhadamanthys_smoke-loader_stealc.exe
Resource
win11ltsc2024-20260709-en
General
- Target 2026-08-03_91458b82bd53c7edd9d5c23a3f2e5afd_amadey_elex_njrat_remcos_rhadamanthys_smoke-loader_stealc.exe
- Size 11.7MB
- Sample260804-mwne9ayama
- SHA256 ad1b7c73a307bd6cbdcfae33be2d7171635220d823c315b2253741af69722ccf
- MD5 91458b82bd53c7edd9d5c23a3f2e5afd
- SHA1 60bc83051c6c0056cc8fe1aef1a6d4035f1f8609
- SHA512 1e315ee1c2ae9ad2a51d386a679faa1f0ee29c563192a8be46cb0616d28cf1e92153d9423c731b8b15c303dfc1ef206ef002ec9e29acf476759ca9cc5ed84d09
- SSDEEP 6144:xIzw8mFAdhAtKlQXRbeoVp59Sqer5+nDFoGCCCCCCCCCCCCCCCCCCCCCCCCCCCCn:WEidhAglQhyupLer5+nZo
- TLSH T193C6851541F80D57DA66BE34757F1B1FCCE9140A702EB7092094F1AEFAB9993C82A372
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Extracted
-
tofsee
-
vanaheim.cn
-
jotunheim.name
Signatures
- Windows security bypass 2 TTPs 1 IoCs
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\zzzrssk = "0" svchost.exe - Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 1416 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\zzzrssk\ImagePath = "C:\\Windows\\SysWOW64\\zzzrssk\\hovynbue.exe" svchost.exe - Creates new service(s) 2 TTPs
- Deletes itself 1 IoCs
pid Process 5420 svchost.exe - Executes dropped EXE 1 IoCs
pid Process 1540 hovynbue.exe - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1540 set thread context of 5420 1540 hovynbue.exe 101 - Launches sc.exe 3 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 5548 sc.exe 1840 sc.exe 1616 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 - Executes a command shell one-liner 1 TTPs 2 IoCs
Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.
pid Process 4112 cmd.exe 3536 cmd.exe - Program crash 2 IoCs
pid pid_target Process procid_target 6124 5460 WerFault.exe 87 1316 1540 WerFault.exe 100 - 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 2026-08-03_91458b82bd53c7edd9d5c23a3f2e5afd_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 sc.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language sc.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language hovynbue.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 cmd.exe - Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 5460 wrote to memory of 3536 5460 2026-08-03_91458b82bd53c7edd9d5c23a3f2e5afd_amadey_elex_njrat_remcos_rhadamanthys_smoke-loader_stealc.exe 89 PID 5460 wrote to memory of 4112 5460 2026-08-03_91458b82bd53c7edd9d5c23a3f2e5afd_amadey_elex_njrat_remcos_rhadamanthys_smoke-loader_stealc.exe 91 PID 5460 wrote to memory of 1840 5460 2026-08-03_91458b82bd53c7edd9d5c23a3f2e5afd_amadey_elex_njrat_remcos_rhadamanthys_smoke-loader_stealc.exe 93 PID 5460 wrote to memory of 1616 5460 2026-08-03_91458b82bd53c7edd9d5c23a3f2e5afd_amadey_elex_njrat_remcos_rhadamanthys_smoke-loader_stealc.exe 95 PID 5460 wrote to memory of 5548 5460 2026-08-03_91458b82bd53c7edd9d5c23a3f2e5afd_amadey_elex_njrat_remcos_rhadamanthys_smoke-loader_stealc.exe 98 PID 1540 wrote to memory of 5420 1540 hovynbue.exe 101 PID 1540 wrote to memory of 5420 1540 hovynbue.exe 101 PID 5460 wrote to memory of 1416 5460 2026-08-03_91458b82bd53c7edd9d5c23a3f2e5afd_amadey_elex_njrat_remcos_rhadamanthys_smoke-loader_stealc.exe 103
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-03_91458b82bd53c7edd9d5c23a3f2e5afd_amadey_elex_njrat_remcos_rhadamanthys_smoke-loader_stealc.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-03_91458b82bd53c7edd9d5c23a3f2e5afd_amadey_elex_njrat_remcos_rhadamanthys_smoke-loader_stealc.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5460 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\zzzrssk\2⤵
- Executes a command shell one-liner
- System Location Discovery: System Language Discovery
PID:3536
-
-
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\hovynbue.exe" C:\Windows\SysWOW64\zzzrssk\2⤵
- Executes a command shell one-liner
- System Location Discovery: System Language Discovery
PID:4112
-
-
C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" create zzzrssk binPath= "C:\Windows\SysWOW64\zzzrssk\hovynbue.exe /d\"C:\Users\Admin\AppData\Local\Temp\2026-08-03_91458b82bd53c7edd9d5c23a3f2e5afd_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:1840
-
-
C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" description zzzrssk "wifi internet conection"2⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:1616
-
-
C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" start zzzrssk2⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:5548
-
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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:1416
-
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 5460 -s 13802⤵
- Program crash
PID:6124
-
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C:\Windows\SysWOW64\zzzrssk\hovynbue.exeC:\Windows\SysWOW64\zzzrssk\hovynbue.exe /d"C:\Users\Admin\AppData\Local\Temp\2026-08-03_91458b82bd53c7edd9d5c23a3f2e5afd_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:1540 -
C:\Windows\SysWOW64\svchost.exesvchost.exe2⤵
- Windows security bypass
- Sets service image path in registry
- Deletes itself
- System Location Discovery: System Language Discovery
PID:5420
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1540 -s 5922⤵
- Program crash
PID:1316
-
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 1540 -ip 15401⤵PID:3188
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 5460 -ip 54601⤵PID:1444
Network
MITRE ATT&CK Enterprise v16
Execution
Command and Scripting Interpreter
1Windows Command Shell
1System Services
1Service Execution
1Persistence
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
2Disable or Modify System Firewall
1Disable or Modify Tools
1Modify Registry
2Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hovynbue.exe
- Size 10.3MB
- SHA256 4ed110f6fad4856c7d827d7b81690e09faf989a41b18d06686676780d8edd604
- MD5 fd03c470f5abbb4847d503afe77d46fa
- SHA1 c0006345d355278d535aa7e5a925fd815ddc2fe1
- SHA512 3282b056df2835582c5ef4bf47b2be7a9bdd39c3319d62dd9487492b9259955089bd6a1517fe91eb25f15e478a497aab67dc8049a9f8ff665c24ede55295e81e
- SSDEEP 6144:XIzw8mFAdhAtKlQXRbeoVp59Sqer5+nDFoGCCCCCCCCCCCCCCCCCCCCCCCCCCCCC:4EidhAglQhyupLer5+nZo
- TLSH T19BB6851541F80D57DA66BE34757F1B1FCCE9140A702EB7092094F1AEFAB9993C82A372
- MD5 SHA1 SHA512 SSDEEP TLSH