Analysis
- max time kernel
148s - max time network
148s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
- submitted
05/09/2026, 17:16
General
- Target 921618ac44ebffb61816e161821b88e657b5ace14e9898a1386a0b8c0a21bded.exe
- Size 525KB
- Sample260905-vtk64swthx
- SHA256 921618ac44ebffb61816e161821b88e657b5ace14e9898a1386a0b8c0a21bded
Malware Config
Extracted
-
remcos
-
7.3.1 Pro
-
RemoteHost
-
qh88eu.com:443
-
go8.company:443
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webyss.in:443
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trungnguyen.co.za:443
-
qh88.es:443
-
news24-news.sa.com:443
-
audio_folder
MicRecords
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audio_path
ApplicationPath
-
audio_record_time
5
-
connect_delay
0
-
connect_interval
1
-
copy_file
WinService.exe
-
copy_folder
service
-
delete_file
false
-
hide_file
false
-
hide_keylog_file
false
-
install_flag
true
-
install_path
%AppData%
-
keylog_crypt
true
-
keylog_file
logs.dat
-
keylog_flag
false
-
keylog_folder
remcos
-
mouse_option
false
-
mutex
Rmc_c2-OR2U87
-
screenshot_crypt
true
-
screenshot_flag
true
-
screenshot_folder
Screenshots
-
screenshot_path
%AppData%
-
screenshot_time
10
- startup_value
-
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 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 1 IoCs
- Adds Run key to start application 2 TTPs 4 IoCs
- Suspicious use of SetThreadContext 2 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 3 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of FindShellTrayWindow 1 IoCs
- Suspicious use of SendNotifyMessage 1 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 3 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\921618ac44ebffb61816e161821b88e657b5ace14e9898a1386a0b8c0a21bded.exe"C:\Users\Admin\AppData\Local\Temp\921618ac44ebffb61816e161821b88e657b5ace14e9898a1386a0b8c0a21bded.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Roaming\service\WinService.exe"C:\Users\Admin\AppData\Roaming\service\WinService.exe"2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
-
\??\c:\program files (x86)\internet explorer\iexplore.exe"c:\program files (x86)\internet explorer\iexplore.exe"3⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\svchost.exe"C:\Windows\SysWOW64\svchost.exe"4⤵
-
-
-
-
C:\Windows\system32\AUDIODG.EXEC:\Windows\system32\AUDIODG.EXE 0x300 0x2f41⤵
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
logs.dat
WinService.exe
memory/3900-29-0x0000000000900000-0x0000000000990000-memory.dmp
memory/3900-33-0x0000000000900000-0x0000000000990000-memory.dmp
memory/3900-17-0x0000000000900000-0x0000000000990000-memory.dmp
memory/3900-65-0x0000000000900000-0x0000000000990000-memory.dmp
memory/3900-21-0x0000000000900000-0x0000000000990000-memory.dmp
memory/3900-25-0x0000000000900000-0x0000000000990000-memory.dmp
memory/3900-8-0x0000000000900000-0x0000000000990000-memory.dmp
memory/3900-13-0x0000000000900000-0x0000000000990000-memory.dmp
memory/3900-37-0x0000000000900000-0x0000000000990000-memory.dmp
memory/3900-41-0x0000000000900000-0x0000000000990000-memory.dmp
memory/3900-45-0x0000000000900000-0x0000000000990000-memory.dmp
memory/3900-49-0x0000000000900000-0x0000000000990000-memory.dmp
memory/3900-53-0x0000000000900000-0x0000000000990000-memory.dmp
memory/3900-57-0x0000000000900000-0x0000000000990000-memory.dmp
memory/3900-61-0x0000000000900000-0x0000000000990000-memory.dmp
memory/4364-14-0x0000000000400000-0x0000000000490000-memory.dmp