Analysis
- max time kernel
149s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
29/07/2026, 05:06
Static task
static1
Behavioral task
behavioral1
Sample
2026-07-29_dcb2d5896d5e8259a35dc093a8f11bcf_amadey_elex_njrat_remcos_rhadamanthys_smoke-loader_stealc.exe
Resource
win10v2004-20260513-en
Behavioral task
behavioral2
Sample
2026-07-29_dcb2d5896d5e8259a35dc093a8f11bcf_amadey_elex_njrat_remcos_rhadamanthys_smoke-loader_stealc.exe
Resource
win11ltsc2024-20260709-en
General
- Target 2026-07-29_dcb2d5896d5e8259a35dc093a8f11bcf_amadey_elex_njrat_remcos_rhadamanthys_smoke-loader_stealc.exe
- Size 11.4MB
- Sample260729-frvkfaeb69
- SHA256 25c797e4144623bd76af527446bdb6bbd12fa52205a2eff85cc62ae9ddb331fe
- MD5 dcb2d5896d5e8259a35dc093a8f11bcf
- SHA1 aaef00ff1e52a2cdd5ba8f1eb9345f951d353ce3
- SHA512 bb4b78ecaffd12977f5bafb407539084ce8462583ead1b09ba231541ff3d69c56da44648a2709c25307cfaef1f55c0af875e042e08ec6acf8a83d0e1110dead2
- SSDEEP 6144:4Izw8mFAdhAtKlQXRbeoVp59Sqer5+nDFoGCCCCCCCCCCCCCCCCCCCCCCCCCCCCC:/EidhAglQhyupLer5+nZo
- TLSH T1BFC6851541F80D57DA66BE34757F1B1FCCE9140A702EB7092094F1AEFAB9993C82A372
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Extracted
-
tofsee
-
vanaheim.cn
-
jotunheim.name
Signatures
- Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 4128 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\ygjqtxfr\ImagePath = "C:\\Windows\\SysWOW64\\ygjqtxfr\\fzzrueiu.exe" svchost.exe - Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-540052884-2969440504-464782435-1000\Control Panel\International\Geo\Nation 2026-07-29_dcb2d5896d5e8259a35dc093a8f11bcf_amadey_elex_njrat_remcos_rhadamanthys_smoke-loader_stealc.exe - Creates new service(s) 2 TTPs
- Deletes itself 1 IoCs
pid Process 2192 svchost.exe - Executes dropped EXE 1 IoCs
pid Process 4356 fzzrueiu.exe - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4356 set thread context of 2192 4356 fzzrueiu.exe 101 - Launches sc.exe 3 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 3928 sc.exe 2548 sc.exe 4004 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 2536 cmd.exe 2120 cmd.exe - Program crash 2 IoCs
pid pid_target Process procid_target 3804 4356 WerFault.exe 100 2236 1788 WerFault.exe 84 - 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 2026-07-29_dcb2d5896d5e8259a35dc093a8f11bcf_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 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 sc.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language fzzrueiu.exe - Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 1788 wrote to memory of 2536 1788 2026-07-29_dcb2d5896d5e8259a35dc093a8f11bcf_amadey_elex_njrat_remcos_rhadamanthys_smoke-loader_stealc.exe 85 PID 1788 wrote to memory of 2120 1788 2026-07-29_dcb2d5896d5e8259a35dc093a8f11bcf_amadey_elex_njrat_remcos_rhadamanthys_smoke-loader_stealc.exe 88 PID 1788 wrote to memory of 3928 1788 2026-07-29_dcb2d5896d5e8259a35dc093a8f11bcf_amadey_elex_njrat_remcos_rhadamanthys_smoke-loader_stealc.exe 90 PID 1788 wrote to memory of 2548 1788 2026-07-29_dcb2d5896d5e8259a35dc093a8f11bcf_amadey_elex_njrat_remcos_rhadamanthys_smoke-loader_stealc.exe 95 PID 1788 wrote to memory of 4004 1788 2026-07-29_dcb2d5896d5e8259a35dc093a8f11bcf_amadey_elex_njrat_remcos_rhadamanthys_smoke-loader_stealc.exe 97 PID 4356 wrote to memory of 2192 4356 fzzrueiu.exe 101 PID 4356 wrote to memory of 2192 4356 fzzrueiu.exe 101 PID 1788 wrote to memory of 4128 1788 2026-07-29_dcb2d5896d5e8259a35dc093a8f11bcf_amadey_elex_njrat_remcos_rhadamanthys_smoke-loader_stealc.exe 104
Processes
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C:\Users\Admin\AppData\Local\Temp\2026-07-29_dcb2d5896d5e8259a35dc093a8f11bcf_amadey_elex_njrat_remcos_rhadamanthys_smoke-loader_stealc.exe"C:\Users\Admin\AppData\Local\Temp\2026-07-29_dcb2d5896d5e8259a35dc093a8f11bcf_amadey_elex_njrat_remcos_rhadamanthys_smoke-loader_stealc.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1788 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ygjqtxfr\2⤵
- Executes a command shell one-liner
- System Location Discovery: System Language Discovery
PID:2536
-
-
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\fzzrueiu.exe" C:\Windows\SysWOW64\ygjqtxfr\2⤵
- Executes a command shell one-liner
- System Location Discovery: System Language Discovery
PID:2120
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-
C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" create ygjqtxfr binPath= "C:\Windows\SysWOW64\ygjqtxfr\fzzrueiu.exe /d\"C:\Users\Admin\AppData\Local\Temp\2026-07-29_dcb2d5896d5e8259a35dc093a8f11bcf_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:3928
-
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C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" description ygjqtxfr "wifi internet conection"2⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:2548
-
-
C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" start ygjqtxfr2⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:4004
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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:4128
-
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1788 -s 10362⤵
- Program crash
PID:2236
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C:\Windows\SysWOW64\ygjqtxfr\fzzrueiu.exeC:\Windows\SysWOW64\ygjqtxfr\fzzrueiu.exe /d"C:\Users\Admin\AppData\Local\Temp\2026-07-29_dcb2d5896d5e8259a35dc093a8f11bcf_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:4356 -
C:\Windows\SysWOW64\svchost.exesvchost.exe2⤵
- Sets service image path in registry
- Deletes itself
- System Location Discovery: System Language Discovery
PID:2192
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4356 -s 5122⤵
- Program crash
PID:3804
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 4356 -ip 43561⤵PID:212
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 496 -p 1788 -ip 17881⤵PID:4964
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
1Disable or Modify System Firewall
1Modify Registry
1Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\fzzrueiu.exe
- Size 11.0MB
- SHA256 265108ccffb8e1070ee28162fa8728332b088ab8e96f6a90cd50f1e76188c4dd
- MD5 f6ccd78959c9446dfac2a1e9da2e0c89
- SHA1 fa1d36c0b467af600284875b44d0a29ae09d0dee
- SHA512 ea478b3f71c12472dce61fe3627f1b299218f4d3c547d0db8fde45ff3fd8a068a5bafd521f1103ed40f5f21727a8ad37dddd83df5750bd8041d1ba20c38ff3b5
- SSDEEP 6144:jIzw8mFAdhAtKlQXRbeoVp59Sqer5+nDFoGCCCCCCCCCCCCCCCCCCCCCCCCCCCCn:cEidhAglQhyupLer5+nZo
- TLSH T14BC6851541F80D57DA66BE34757F1B1FCCE9140A702EB7092094F1AEFAB9993C82A372
- MD5 SHA1 SHA512 SSDEEP TLSH