Analysis
- max time kernel
60s - max time network
52s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
- submitted
31/10/2026, 20:20
General
- Target 3bd98568a0e8479539239caf16e876d6f1a4a53f1147f79b3e27f34fc92deaf8.exe
- Size 1.5MB
- Sample261031-y4jmtady81
- SHA256 3bd98568a0e8479539239caf16e876d6f1a4a53f1147f79b3e27f34fc92deaf8
Malware Config
Extracted
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remcos
-
2.2.2 Pro
-
chinemerem
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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
-
keylog_path
%AppData%
-
mouse_option
false
-
mutex
r-8ET8H0
-
screenshot_crypt
false
-
screenshot_flag
false
-
screenshot_folder
Screenshots
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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.
- Executes dropped EXE 4 IoCs
- AutoIT Executable 6 IoCs
AutoIT scripts compiled to PE executables.
- Suspicious use of SetThreadContext 3 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs
The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.
- System Location Discovery: System Language Discovery 1 TTPs 6 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 2 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 8 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\3bd98568a0e8479539239caf16e876d6f1a4a53f1147f79b3e27f34fc92deaf8.exe"C:\Users\Admin\AppData\Local\Temp\3bd98568a0e8479539239caf16e876d6f1a4a53f1147f79b3e27f34fc92deaf8.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\3bd98568a0e8479539239caf16e876d6f1a4a53f1147f79b3e27f34fc92deaf8.exe"C:\Users\Admin\AppData\Local\Temp\3bd98568a0e8479539239caf16e876d6f1a4a53f1147f79b3e27f34fc92deaf8.exe"2⤵
- Reads the TCP/IP host and domain name from the registry
- 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⤵
- 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.exe"C:\Users\Admin\AppData\Roaming\UIMgrBroker\AboutSettingsHandlers.exe"1⤵
- 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/1060-14-0x00000000000C0000-0x00000000000E0000-memory.dmp
memory/1060-3-0x00000000000C0000-0x00000000000E0000-memory.dmp
memory/1060-10-0x00000000000C0000-0x00000000000E0000-memory.dmp
memory/1060-11-0x00000000000C0000-0x00000000000E0000-memory.dmp
memory/1932-33-0x0000000000DE0000-0x0000000000F69000-memory.dmp
memory/1932-23-0x0000000000970000-0x0000000000973000-memory.dmp
memory/1932-36-0x0000000000DE0000-0x0000000000F69000-memory.dmp
memory/1932-37-0x0000000000DE0000-0x0000000000F69000-memory.dmp
memory/2200-15-0x0000000000DC0000-0x0000000000DC3000-memory.dmp
memory/2200-16-0x0000000000DE0000-0x0000000000F69000-memory.dmp
memory/2200-20-0x0000000000DE0000-0x0000000000F69000-memory.dmp
memory/2200-2-0x00000000033F0000-0x00000000033F1000-memory.dmp
memory/2200-0-0x0000000000DE0000-0x0000000000F69000-memory.dmp
memory/2200-1-0x0000000000DC0000-0x0000000000DC3000-memory.dmp
memory/2636-47-0x0000000000DE0000-0x0000000000F69000-memory.dmp