Analysis
- max time kernel
149s - max time network
155s - 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, 03:58
Static task
static1
Behavioral task
behavioral1
Sample
2026-04-16_c694be6c7750b6ec4d340320b2cbfce1_amadey_elex_glassworm_njrat_remcos_rhadamanthys_smoke-loader_stealc.exe
Resource
win10v2004-20260130-en
Behavioral task
behavioral2
Sample
2026-04-16_c694be6c7750b6ec4d340320b2cbfce1_amadey_elex_glassworm_njrat_remcos_rhadamanthys_smoke-loader_stealc.exe
Resource
win11-20260130-en
General
- Target 2026-04-16_c694be6c7750b6ec4d340320b2cbfce1_amadey_elex_glassworm_njrat_remcos_rhadamanthys_smoke-loader_stealc.exe
- Size 14.2MB
- Sample260416-ejnlgsav7x
- SHA256 4f56fe8998601126576926a44594f8144d58b3d71d196846da692e6a45c92b89
- MD5 c694be6c7750b6ec4d340320b2cbfce1
- SHA1 37800bfc13b4c50e02a6f72f1a0a5fc16f6e9fae
- SHA512 416828e16cd1a7e72e92cf49ea9674e30c997ed63572652c725612e8c80cc518567371e441e5b375acc2ed28a683cc3b7763d2752894980d32cacdcd517bfcbb
- SSDEEP 12288:PEidhAglQhyupVe0L1ZA1YaL8i0DCmer5+nIwaJCer5+nTer5+nTer5+nTer5+n3:sNgShFLAVd
- TLSH T125E60A02B76499E1DA624BF8583045D5A333F8917E5197A6EC48B30F8C67F889F23B35
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Extracted
-
tofsee
-
vanaheim.cn
-
jotunheim.name
Signatures
- Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 3588 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\rmrwpnak\ImagePath = "C:\\Windows\\SysWOW64\\rmrwpnak\\sietogem.exe" svchost.exe - Creates new service(s) 2 TTPs
- Deletes itself 1 IoCs
pid Process 3288 svchost.exe - Executes dropped EXE 1 IoCs
pid Process 1700 sietogem.exe - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1700 set thread context of 3288 1700 sietogem.exe 92 - Launches sc.exe 3 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 5372 sc.exe 5900 sc.exe 3940 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 5632 1700 WerFault.exe 91 4772 3720 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 sc.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 sietogem.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_c694be6c7750b6ec4d340320b2cbfce1_amadey_elex_glassworm_njrat_remcos_rhadamanthys_smoke-loader_stealc.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe - Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 3720 wrote to memory of 4936 3720 2026-04-16_c694be6c7750b6ec4d340320b2cbfce1_amadey_elex_glassworm_njrat_remcos_rhadamanthys_smoke-loader_stealc.exe 80 PID 3720 wrote to memory of 2600 3720 2026-04-16_c694be6c7750b6ec4d340320b2cbfce1_amadey_elex_glassworm_njrat_remcos_rhadamanthys_smoke-loader_stealc.exe 82 PID 3720 wrote to memory of 5372 3720 2026-04-16_c694be6c7750b6ec4d340320b2cbfce1_amadey_elex_glassworm_njrat_remcos_rhadamanthys_smoke-loader_stealc.exe 84 PID 3720 wrote to memory of 5900 3720 2026-04-16_c694be6c7750b6ec4d340320b2cbfce1_amadey_elex_glassworm_njrat_remcos_rhadamanthys_smoke-loader_stealc.exe 87 PID 3720 wrote to memory of 3940 3720 2026-04-16_c694be6c7750b6ec4d340320b2cbfce1_amadey_elex_glassworm_njrat_remcos_rhadamanthys_smoke-loader_stealc.exe 89 PID 1700 wrote to memory of 3288 1700 sietogem.exe 92 PID 1700 wrote to memory of 3288 1700 sietogem.exe 92 PID 3720 wrote to memory of 3588 3720 2026-04-16_c694be6c7750b6ec4d340320b2cbfce1_amadey_elex_glassworm_njrat_remcos_rhadamanthys_smoke-loader_stealc.exe 96
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-04-16_c694be6c7750b6ec4d340320b2cbfce1_amadey_elex_glassworm_njrat_remcos_rhadamanthys_smoke-loader_stealc.exe"C:\Users\Admin\AppData\Local\Temp\2026-04-16_c694be6c7750b6ec4d340320b2cbfce1_amadey_elex_glassworm_njrat_remcos_rhadamanthys_smoke-loader_stealc.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3720 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\rmrwpnak\2⤵
- System Location Discovery: System Language Discovery
PID:4936
-
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\sietogem.exe" C:\Windows\SysWOW64\rmrwpnak\2⤵
- System Location Discovery: System Language Discovery
PID:2600
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-
C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" create rmrwpnak binPath= "C:\Windows\SysWOW64\rmrwpnak\sietogem.exe /d\"C:\Users\Admin\AppData\Local\Temp\2026-04-16_c694be6c7750b6ec4d340320b2cbfce1_amadey_elex_glassworm_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:5372
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C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" description rmrwpnak "wifi internet conection"2⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:5900
-
-
C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" start rmrwpnak2⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:3940
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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:3588
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3720 -s 12082⤵
- Program crash
PID:4772
-
-
C:\Windows\SysWOW64\rmrwpnak\sietogem.exeC:\Windows\SysWOW64\rmrwpnak\sietogem.exe /d"C:\Users\Admin\AppData\Local\Temp\2026-04-16_c694be6c7750b6ec4d340320b2cbfce1_amadey_elex_glassworm_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:1700 -
C:\Windows\SysWOW64\svchost.exesvchost.exe2⤵
- Sets service image path in registry
- Deletes itself
- System Location Discovery: System Language Discovery
PID:3288
-
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1700 -s 5562⤵
- Program crash
PID:5632
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 1700 -ip 17001⤵PID:5864
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 3720 -ip 37201⤵PID:4296
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\sietogem.exe
- Size 11.7MB
- SHA256 0a2dbbaca9771df07f6c2c2ebd53cc4c5adcc4dc6eccebe14d4c2eba3b840c30
- MD5 1d5301d0d9e487882962aaf955325f5c
- SHA1 ad43d856444704fbb7463dfd1d1fb06f52059a80
- SHA512 3b97388b741888e4e7835ae4a7924750e0c27509d3aee777794d24397019963fdd76a7b0991cb0f2be56cce645922bb8d1bcaf79402595aeba14dcf9d209bfa2
- SSDEEP 12288:sEidhAglQhyupVe0L1ZA1YaL8i0DCmer5+nIwaJCer5+nTer5+nTer5+nTer5+n/:rNgShFLAVd
- TLSH T1DFC61A02B76499D1DA624BF8583041D5A333F8917E5297A6EC48B30E8C67F899F23F35
- MD5 SHA1 SHA512 SSDEEP TLSH