Analysis
- max time kernel
150s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
- submitted
27/07/2026, 02:45
General
- Target 2bb3924ac13fbbe690c44e6c2207117428fabb4588099b84db66a0203ca00ab9.exe
- Size 538KB
- Sample260727-c871bavtcy
- SHA256 2bb3924ac13fbbe690c44e6c2207117428fabb4588099b84db66a0203ca00ab9
Malware Config
Extracted
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remcos
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7.2.1 Pro
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RemoteHost
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107.175.246.30:2404
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107.175.246.30:5000
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audio_folder
MicRecords
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audio_path
ApplicationPath
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audio_record_time
5
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connect_delay
0
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connect_interval
1
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copy_file
remcos.exe
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copy_folder
Remcos
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delete_file
false
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hide_file
false
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hide_keylog_file
false
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install_flag
true
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keylog_crypt
false
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keylog_file
logs.dat
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keylog_flag
false
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keylog_folder
remcos
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mouse_option
false
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mutex
Rmc-M2C765
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screenshot_crypt
false
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screenshot_flag
false
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screenshot_folder
Screenshots
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screenshot_path
%AppData%
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screenshot_time
10
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take_screenshot_option
false
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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 3 IoCs
- Loads dropped DLL 5 IoCs
- Adds Run key to start application 2 TTPs 4 IoCs
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Contacts third-party web service commonly abused for C2 1 TTPs 4 IoCs
Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.
- Suspicious use of NtCreateThreadExHideFromDebugger 2 IoCs
- Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs
- Drops file in Program Files directory 4 IoCs
- Drops file in Windows directory 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 4 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious behavior: MapViewOfSection 2 IoCs
- Suspicious use of WriteProcessMemory 9 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\2bb3924ac13fbbe690c44e6c2207117428fabb4588099b84db66a0203ca00ab9.exe"C:\Users\Admin\AppData\Local\Temp\2bb3924ac13fbbe690c44e6c2207117428fabb4588099b84db66a0203ca00ab9.exe"1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Program Files directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\2bb3924ac13fbbe690c44e6c2207117428fabb4588099b84db66a0203ca00ab9.exe"C:\Users\Admin\AppData\Local\Temp\2bb3924ac13fbbe690c44e6c2207117428fabb4588099b84db66a0203ca00ab9.exe"2⤵
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-
C:\Users\Admin\AppData\Local\Temp\2bb3924ac13fbbe690c44e6c2207117428fabb4588099b84db66a0203ca00ab9.exe"C:\Users\Admin\AppData\Local\Temp\2bb3924ac13fbbe690c44e6c2207117428fabb4588099b84db66a0203ca00ab9.exe"2⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\2bb3924ac13fbbe690c44e6c2207117428fabb4588099b84db66a0203ca00ab9.exe"C:\Users\Admin\AppData\Local\Temp\2bb3924ac13fbbe690c44e6c2207117428fabb4588099b84db66a0203ca00ab9.exe"3⤵
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C:\ProgramData\Remcos\remcos.exe"C:\ProgramData\Remcos\remcos.exe"3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Program Files directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
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C:\ProgramData\Remcos\remcos.exe"C:\ProgramData\Remcos\remcos.exe"4⤵
- Executes dropped EXE
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-
C:\ProgramData\Remcos\remcos.exe"C:\ProgramData\Remcos\remcos.exe"4⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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C:\ProgramData\Remcos\remcos.exe"C:\ProgramData\Remcos\remcos.exe"5⤵
- Executes dropped EXE
-
-
-
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Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
remcos.exe
646C991C2A28825F3CC56E0A1D1E3FA9
B3513D73A177A2707D910183759B389B_7DD27661FE660D16AA99AE0402116C4E
DDE8B1B7E253A9758EC380BD648952AF_DF1A6565DCD908C2FD1C90E4018E7B7A
646C991C2A28825F3CC56E0A1D1E3FA9
B3513D73A177A2707D910183759B389B_7DD27661FE660D16AA99AE0402116C4E
DDE8B1B7E253A9758EC380BD648952AF_DF1A6565DCD908C2FD1C90E4018E7B7A
System.dll
tmaz.ini
Besoege.kra
Lavalderens
Mahsur.per
Sprechstallmeistere.dif
prinsetitlen.bol
svenskheden.fed
verbless.jet
memory/632-26-0x0000000074215000-0x0000000074216000-memory.dmp
memory/2636-107-0x00000000004E0000-0x0000000001734000-memory.dmp
memory/2636-49-0x0000000077531000-0x0000000077651000-memory.dmp
memory/2636-60-0x00000000004E0000-0x000000000056A000-memory.dmp
memory/2636-51-0x000000000051B000-0x000000000051C000-memory.dmp
memory/2636-44-0x00000000004E0000-0x0000000001734000-memory.dmp
memory/2636-58-0x00000000004E0000-0x0000000001734000-memory.dmp
memory/2636-33-0x0000000077659000-0x000000007765A000-memory.dmp
memory/2636-32-0x00000000004E0000-0x0000000001734000-memory.dmp
memory/2636-29-0x00000000775D5000-0x00000000775D6000-memory.dmp
memory/2636-28-0x0000000077659000-0x000000007765A000-memory.dmp
memory/2636-27-0x00000000775B8000-0x00000000775B9000-memory.dmp
memory/2636-62-0x00000000004E0000-0x0000000001734000-memory.dmp
memory/2708-117-0x00000000004E0000-0x0000000001734000-memory.dmp