Analysis
- max time kernel
149s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20260911-en - resource tags
arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
04/11/2026, 01:52
Static task
static1
Behavioral task
behavioral1
Sample
2026-11-03_f9297f57e7432c4de89cb791e9083c34_amadey_elex_remcos_smoke-loader.exe
Resource
win10v2004-20260911-en
General
- Target 2026-11-03_f9297f57e7432c4de89cb791e9083c34_amadey_elex_remcos_smoke-loader.exe
- Size 12.6MB
- Sample261104-cac3aacb52
- SHA256 9e28ad096644f303885a42fa9393ef0666dc2d36935cb85c4fee62eb9fcb2e7b
- MD5 f9297f57e7432c4de89cb791e9083c34
- SHA1 9a8bd43e3b90bd71c0632688f10db388b531ea5a
- SHA512 50f54d97bbbde93db7fc907a4f6202b7b33635354018de25252802c5b9d08e43c1c95a82eb527cd614d0b08f654bc2a6ff79a14241534cd460a2fd6e0c6bd718
- SSDEEP 24576:8Swf8lsd83RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRB:Pwk
- TLSH T1E3D68C211AB84D2CC4F549FD732D3F1189FEC770EBD1A6A7A90828F548B75BA24D2427
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Extracted
-
tofsee
-
quadoil.ru
-
lakeflex.ru
Signatures
- Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 116 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\cihnkxwq\ImagePath = "C:\\Windows\\SysWOW64\\cihnkxwq\\gicrnjfw.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-1-5-21-939655444-3071939294-1401108526-1000\Control Panel\International\Geo\Nation 2026-11-03_f9297f57e7432c4de89cb791e9083c34_amadey_elex_remcos_smoke-loader.exe - Creates new service(s) 2 TTPs
- Deletes itself 1 TTPs 1 IoCs
pid Process 4056 svchost.exe - Executes dropped EXE 1 IoCs
pid Process 2844 gicrnjfw.exe - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2844 set thread context of 4056 2844 gicrnjfw.exe 107 - Launches sc.exe 3 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 508 sc.exe 4264 sc.exe 720 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 queried \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh netsh.exe Key value enumerated \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh netsh.exe Key opened \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 1144 cmd.exe 1496 cmd.exe - Program crash 2 IoCs
pid pid_target Process procid_target 4140 912 WerFault.exe 84 2528 2844 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 cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language sc.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language gicrnjfw.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language svchost.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2026-11-03_f9297f57e7432c4de89cb791e9083c34_amadey_elex_remcos_smoke-loader.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 - Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 912 wrote to memory of 1144 912 2026-11-03_f9297f57e7432c4de89cb791e9083c34_amadey_elex_remcos_smoke-loader.exe 85 PID 912 wrote to memory of 1496 912 2026-11-03_f9297f57e7432c4de89cb791e9083c34_amadey_elex_remcos_smoke-loader.exe 89 PID 912 wrote to memory of 508 912 2026-11-03_f9297f57e7432c4de89cb791e9083c34_amadey_elex_remcos_smoke-loader.exe 91 PID 912 wrote to memory of 4264 912 2026-11-03_f9297f57e7432c4de89cb791e9083c34_amadey_elex_remcos_smoke-loader.exe 95 PID 912 wrote to memory of 720 912 2026-11-03_f9297f57e7432c4de89cb791e9083c34_amadey_elex_remcos_smoke-loader.exe 98 PID 912 wrote to memory of 116 912 2026-11-03_f9297f57e7432c4de89cb791e9083c34_amadey_elex_remcos_smoke-loader.exe 101 PID 2844 wrote to memory of 4056 2844 gicrnjfw.exe 107 PID 2844 wrote to memory of 4056 2844 gicrnjfw.exe 107
Processes
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C:\Users\Admin\AppData\Local\Temp\2026-11-03_f9297f57e7432c4de89cb791e9083c34_amadey_elex_remcos_smoke-loader.exe"C:\Users\Admin\AppData\Local\Temp\2026-11-03_f9297f57e7432c4de89cb791e9083c34_amadey_elex_remcos_smoke-loader.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:912 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\cihnkxwq\2⤵
- Executes a command shell one-liner
- System Location Discovery: System Language Discovery
PID:1144
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\gicrnjfw.exe" C:\Windows\SysWOW64\cihnkxwq\2⤵
- Executes a command shell one-liner
- System Location Discovery: System Language Discovery
PID:1496
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C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" create cihnkxwq binPath= "C:\Windows\SysWOW64\cihnkxwq\gicrnjfw.exe /d\"C:\Users\Admin\AppData\Local\Temp\2026-11-03_f9297f57e7432c4de89cb791e9083c34_amadey_elex_remcos_smoke-loader.exe\"" type= own start= auto DisplayName= "wifi support"2⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:508
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C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" description cihnkxwq "wifi internet conection"2⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:4264
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C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" start cihnkxwq2⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:720
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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:116
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 912 -s 10442⤵
- Program crash
PID:4140
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C:\Windows\SysWOW64\cihnkxwq\gicrnjfw.exeC:\Windows\SysWOW64\cihnkxwq\gicrnjfw.exe /d"C:\Users\Admin\AppData\Local\Temp\2026-11-03_f9297f57e7432c4de89cb791e9083c34_amadey_elex_remcos_smoke-loader.exe"1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2844 -
C:\Windows\SysWOW64\svchost.exesvchost.exe2⤵
- Sets service image path in registry
- Deletes itself
- System Location Discovery: System Language Discovery
PID:4056
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2844 -s 5322⤵
- Program crash
PID:2528
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 912 -ip 9121⤵PID:2980
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 2844 -ip 28441⤵PID:2900
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
1Indicator Removal
1File Deletion
1Modify Registry
1Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\gicrnjfw.exe
- Size 13.4MB
- SHA256 67e7bdb65efb3f6c8b0ae218fca0960d109fcf66fd51d6c3a47e469889264864
- MD5 cc7eb7418bdaf95d331cee269a31a4f5
- SHA1 0aa0c7c75637daeebb54f88e7ea277a09cca76ac
- SHA512 6332a93f29f7ab05c92e12b91c5881b784885ca2b316e90dd8a30dec689a87587210eb5d2ed1f6e5e040d36d5487f5556554fa8f6d55653fca46805e67fc631b
- SSDEEP 24576:vSwf8lsd83RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR1:awk
- TLSH T1D7E68C211AB84D2CC4F549FD732D3F1189FEC770EBD1A6A7A90828F548B75BA24D2427
- MD5 SHA1 SHA512 SSDEEP TLSH