Analysis
- max time kernel
149s - max time network
148s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
- submitted
01/06/2026, 22:56
General
- Target tmpuf3qn466.exe
- Size 1.5MB
- Sample260601-2w2efagx4x
- SHA256 1f90c00b86e7bcc9a688b12a85b5a386c8dd566a76ab5ef4f35c26fe6f2ff328
Malware Config
Extracted
-
remcos
-
2.2.2 Pro
-
chinemerem
-
remcoss.onmypc.org:3765
-
audio_folder
audio
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audio_path
%AppData%
-
audio_record_time
5
-
connect_delay
0
-
connect_interval
5
-
copy_file
remcos.exe
-
copy_folder
remcos
-
delete_file
false
-
hide_file
false
-
hide_keylog_file
true
-
install_flag
false
-
install_path
%AppData%
-
keylog_crypt
true
-
keylog_file
logs.dat
-
keylog_flag
false
-
keylog_folder
remcos
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keylog_path
%AppData%
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mouse_option
false
-
mutex
r-8ET8H0
-
screenshot_crypt
false
-
screenshot_flag
false
-
screenshot_folder
Screenshots
-
screenshot_path
%AppData%
-
screenshot_time
10
-
startup_value
remcos
-
take_screenshot_option
false
-
take_screenshot_time
5
Signatures
- Family: Remcos
Remcos is a closed-source remote control and surveillance software.
- Checks computer location settings 2 TTPs 3 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 6 IoCs
- AutoIT Executable 9 IoCs
AutoIT scripts compiled to PE executables.
- Suspicious use of SetThreadContext 4 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 8 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Scheduled Task/Job: Scheduled Task 1 TTPs 3 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 11 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\tmpuf3qn466.exe"C:\Users\Admin\AppData\Local\Temp\tmpuf3qn466.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\tmpuf3qn466.exe"C:\Users\Admin\AppData\Local\Temp\tmpuf3qn466.exe"2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
-
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\SysWOW64\schtasks.exe" /create /tn SystemSettingsAdminFlows /tr "C:\Users\Admin\AppData\Roaming\UIMgrBroker\AboutSettingsHandlers.exe" /sc minute /mo 1 /F2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
-
-
C:\Users\Admin\AppData\Roaming\UIMgrBroker\AboutSettingsHandlers.exeC:\Users\Admin\AppData\Roaming\UIMgrBroker\AboutSettingsHandlers.exe1⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Roaming\UIMgrBroker\AboutSettingsHandlers.exe"C:\Users\Admin\AppData\Roaming\UIMgrBroker\AboutSettingsHandlers.exe"2⤵
- Executes dropped EXE
-
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\SysWOW64\schtasks.exe" /create /tn SystemSettingsAdminFlows /tr "C:\Users\Admin\AppData\Roaming\UIMgrBroker\AboutSettingsHandlers.exe" /sc minute /mo 1 /F2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
-
-
C:\Users\Admin\AppData\Roaming\UIMgrBroker\AboutSettingsHandlers.exeC:\Users\Admin\AppData\Roaming\UIMgrBroker\AboutSettingsHandlers.exe1⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Roaming\UIMgrBroker\AboutSettingsHandlers.exe"C:\Users\Admin\AppData\Roaming\UIMgrBroker\AboutSettingsHandlers.exe"2⤵
- Executes dropped EXE
-
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\SysWOW64\schtasks.exe" /create /tn SystemSettingsAdminFlows /tr "C:\Users\Admin\AppData\Roaming\UIMgrBroker\AboutSettingsHandlers.exe" /sc minute /mo 1 /F2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
-
-
C:\Users\Admin\AppData\Roaming\UIMgrBroker\AboutSettingsHandlers.exeC:\Users\Admin\AppData\Roaming\UIMgrBroker\AboutSettingsHandlers.exe1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Roaming\UIMgrBroker\AboutSettingsHandlers.exe"C:\Users\Admin\AppData\Roaming\UIMgrBroker\AboutSettingsHandlers.exe"2⤵
- Executes dropped EXE
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
AboutSettingsHandlers.exe
logs.dat
memory/1312-19-0x0000000000DE0000-0x0000000000F69000-memory.dmp
memory/1312-1-0x0000000000890000-0x0000000000893000-memory.dmp
memory/1312-2-0x0000000001070000-0x0000000001071000-memory.dmp
memory/1312-21-0x0000000000DE0000-0x0000000000F69000-memory.dmp
memory/1312-0-0x0000000000DE0000-0x0000000000F69000-memory.dmp
memory/1312-15-0x0000000000890000-0x0000000000893000-memory.dmp
memory/1312-16-0x0000000000DE0000-0x0000000000F69000-memory.dmp
memory/1976-55-0x0000000000DE0000-0x0000000000F69000-memory.dmp
memory/1976-57-0x0000000000DE0000-0x0000000000F69000-memory.dmp
memory/2640-59-0x0000000000DE0000-0x0000000000F69000-memory.dmp
memory/3328-73-0x0000000000DE0000-0x0000000000F69000-memory.dmp
memory/3752-38-0x0000000000DE0000-0x0000000000F69000-memory.dmp
memory/3752-36-0x0000000000DE0000-0x0000000000F69000-memory.dmp
memory/3752-35-0x0000000000140000-0x0000000000143000-memory.dmp
memory/3752-40-0x0000000000DE0000-0x0000000000F69000-memory.dmp
memory/3752-24-0x0000000000140000-0x0000000000143000-memory.dmp
memory/4944-14-0x00000000000C0000-0x00000000000E0000-memory.dmp
memory/4944-11-0x00000000000C0000-0x00000000000E0000-memory.dmp
memory/4944-10-0x00000000000C0000-0x00000000000E0000-memory.dmp
memory/4944-3-0x00000000000C0000-0x00000000000E0000-memory.dmp