Analysis
- max time kernel
33s - max time network
153s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260706-en - resource tags
- submitted
08/07/2026, 04:35
General
- Target 2026-07-08_6194214b1cf5648cb4c1cd5d04b1aab7_amadey_elex_njrat_remcos_rhadamanthys_smoke-loader_stealc.exe
- Size 11.7MB
- Sample260708-e7sv4sbw7k
- SHA256 2d92f940cfa224c488b5a23a5e98406f357b2fc8dee852f6b4094c79dd6d4366
Malware Config
Extracted
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tofsee
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vanaheim.cn
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jotunheim.name
Signatures
- Family: Tofsee
Backdoor/botnet which carries out malicious activities based on commands from a C2 server.
- Boot or Logon Autostart Execution: Active Setup 2 TTPs 1 IoCs
Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.
- Modifies Windows Firewall 2 TTPs 1 IoCs
- 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.
- Creates new service(s) 2 TTPs
- Deletes itself 1 IoCs
- Executes dropped EXE 1 IoCs
- Enumerates connected drives 3 TTPs 2 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
- Suspicious use of SetThreadContext 1 IoCs
- Launches sc.exe 3 IoCs
Sc.exe is a Windows utlilty to control services on the system.
- 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.
- Program crash 2 IoCs
- 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.
- Checks SCSI registry key(s) 3 TTPs 42 IoCs
SCSI information is often read in order to detect sandboxing environments.
- Modifies Internet Explorer settings 1 TTPs 1 IoCs
- Modifies registry class 16 IoCs
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of AdjustPrivilegeToken 12 IoCs
- Suspicious use of FindShellTrayWindow 9 IoCs
- Suspicious use of SendNotifyMessage 2 IoCs
- Suspicious use of SetWindowsHookEx 2 IoCs
- Suspicious use of WriteProcessMemory 9 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\2026-07-08_6194214b1cf5648cb4c1cd5d04b1aab7_amadey_elex_njrat_remcos_rhadamanthys_smoke-loader_stealc.exe"C:\Users\Admin\AppData\Local\Temp\2026-07-08_6194214b1cf5648cb4c1cd5d04b1aab7_amadey_elex_njrat_remcos_rhadamanthys_smoke-loader_stealc.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\uloahjeh\2⤵
- System Location Discovery: System Language Discovery
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\twpaajkk.exe" C:\Windows\SysWOW64\uloahjeh\2⤵
- System Location Discovery: System Language Discovery
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C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" create uloahjeh binPath= "C:\Windows\SysWOW64\uloahjeh\twpaajkk.exe /d\"C:\Users\Admin\AppData\Local\Temp\2026-07-08_6194214b1cf5648cb4c1cd5d04b1aab7_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
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C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" description uloahjeh "wifi internet conection"2⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
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C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" start uloahjeh2⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
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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
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 912 -s 8202⤵
- Program crash
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C:\Windows\SysWOW64\uloahjeh\twpaajkk.exeC:\Windows\SysWOW64\uloahjeh\twpaajkk.exe /d"C:\Users\Admin\AppData\Local\Temp\2026-07-08_6194214b1cf5648cb4c1cd5d04b1aab7_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
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C:\Windows\SysWOW64\svchost.exesvchost.exe2⤵
- Sets service image path in registry
- Deletes itself
- System Location Discovery: System Language Discovery
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 992 -s 5882⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 992 -ip 9921⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 912 -ip 9121⤵
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C:\Windows\system32\sihost.exesihost.exe1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
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C:\Windows\explorer.exeexplorer.exe /LOADSAVEDWINDOWS2⤵
- Boot or Logon Autostart Execution: Active Setup
- Enumerates connected drives
- Checks SCSI registry key(s)
- Modifies Internet Explorer settings
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
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C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe"C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca1⤵
- Modifies registry class
- Suspicious use of SetWindowsHookEx
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C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe"C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe" -ServerName:CortanaUI.AppXstmwaab17q5s3y22tp6apqz7a45vwv65.mca1⤵
- Modifies registry class
- Suspicious use of SetWindowsHookEx
Network
MITRE ATT&CK Enterprise v16
Persistence
Boot or Logon Autostart Execution
2Active Setup
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
2Active Setup
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
3Replay Monitor
Loading Replay Monitor...
Downloads
prep_Activatable Class_Hermes_perf.cache
prep_Activatable Class_Hermes_perf.cache
twpaajkk.exe
memory/912-11-0x0000000004320000-0x0000000004333000-memory.dmp
memory/912-2-0x0000000004320000-0x0000000004333000-memory.dmp
memory/912-1-0x00000000026F0000-0x00000000027F0000-memory.dmp
memory/1240-191-0x000001FC98AF0000-0x000001FC98BC4000-memory.dmp
memory/2868-12-0x0000000000890000-0x00000000008A5000-memory.dmp
memory/2868-13-0x0000000000890000-0x00000000008A5000-memory.dmp
memory/2868-7-0x0000000000890000-0x00000000008A5000-memory.dmp
memory/3408-36-0x000001B7001E0000-0x000001B7002E0000-memory.dmp
memory/3408-46-0x000001B701ED0000-0x000001B701FD0000-memory.dmp
memory/3408-35-0x000001B7001E0000-0x000001B7002E0000-memory.dmp
memory/3408-57-0x000001B701E50000-0x000001B701E70000-memory.dmp
memory/3408-45-0x000001B701CF0000-0x000001B701D10000-memory.dmp
memory/3408-80-0x000001B7142F0000-0x000001B714310000-memory.dmp
memory/3408-34-0x000001B7001E0000-0x000001B7002E0000-memory.dmp