Analysis
- max time kernel
148s - max time network
150s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
- submitted
08/05/2026, 12:52
General
- Target 1b79abd8fd656cbaedf758615f1a8c0cdbc5239f20a6d6a388d54241290a3b2c.exe
- Size 449KB
- Sample260508-p33vmacz2k
- SHA256 1b79abd8fd656cbaedf758615f1a8c0cdbc5239f20a6d6a388d54241290a3b2c
Malware Config
Extracted
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remcos
-
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-Y8INA4
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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
-
take_screenshot_time
5
Signatures
- Family: Remcos
Remcos is a closed-source remote control and surveillance software.
- Executes dropped EXE 3 IoCs
- Loads dropped DLL 5 IoCs
- Adds Run key to start application 2 TTPs 4 IoCs
- Contacts third-party web service commonly abused for C2 1 TTPs 3 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 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\1b79abd8fd656cbaedf758615f1a8c0cdbc5239f20a6d6a388d54241290a3b2c.exe"C:\Users\Admin\AppData\Local\Temp\1b79abd8fd656cbaedf758615f1a8c0cdbc5239f20a6d6a388d54241290a3b2c.exe"1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- 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\1b79abd8fd656cbaedf758615f1a8c0cdbc5239f20a6d6a388d54241290a3b2c.exe"C:\Users\Admin\AppData\Local\Temp\1b79abd8fd656cbaedf758615f1a8c0cdbc5239f20a6d6a388d54241290a3b2c.exe"2⤵
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C:\Users\Admin\AppData\Local\Temp\1b79abd8fd656cbaedf758615f1a8c0cdbc5239f20a6d6a388d54241290a3b2c.exe"C:\Users\Admin\AppData\Local\Temp\1b79abd8fd656cbaedf758615f1a8c0cdbc5239f20a6d6a388d54241290a3b2c.exe"2⤵
- 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\1b79abd8fd656cbaedf758615f1a8c0cdbc5239f20a6d6a388d54241290a3b2c.exe"C:\Users\Admin\AppData\Local\Temp\1b79abd8fd656cbaedf758615f1a8c0cdbc5239f20a6d6a388d54241290a3b2c.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 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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-
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Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
remcos.exe
4FA45AE1010E09657982D8D28B3BD38E_E12A0B8EDC6D67D64FAC7F53C5B2DBC4
646C991C2A28825F3CC56E0A1D1E3FA9
DDE8B1B7E253A9758EC380BD648952AF_A2D5CEEC2C581D0D49073AC0954273D3
4FA45AE1010E09657982D8D28B3BD38E_E12A0B8EDC6D67D64FAC7F53C5B2DBC4
646C991C2A28825F3CC56E0A1D1E3FA9
DDE8B1B7E253A9758EC380BD648952AF_A2D5CEEC2C581D0D49073AC0954273D3
System.dll
tmaz.ini
memory/3208-17-0x0000000074235000-0x0000000074236000-memory.dmp
memory/4152-103-0x0000000000810000-0x0000000001B27000-memory.dmp
memory/5992-58-0x0000000000810000-0x000000000089A000-memory.dmp
memory/5992-89-0x0000000000810000-0x0000000001B27000-memory.dmp
memory/5992-50-0x0000000000810000-0x0000000001B27000-memory.dmp
memory/5992-57-0x0000000000810000-0x000000000089A000-memory.dmp
memory/5992-56-0x0000000000810000-0x000000000089A000-memory.dmp
memory/5992-55-0x0000000077491000-0x00000000775B3000-memory.dmp
memory/5992-60-0x0000000000810000-0x0000000001B27000-memory.dmp
memory/5992-45-0x0000000000810000-0x0000000001B27000-memory.dmp
memory/5992-43-0x000000000084B000-0x000000000084C000-memory.dmp
memory/5992-51-0x0000000000810000-0x0000000001B27000-memory.dmp
memory/5992-41-0x0000000077491000-0x00000000775B3000-memory.dmp
memory/5992-36-0x0000000000810000-0x0000000001B27000-memory.dmp
memory/5992-24-0x00000000775BB000-0x00000000775BC000-memory.dmp
memory/5992-23-0x0000000000810000-0x0000000001B27000-memory.dmp
memory/5992-20-0x000000007753B000-0x000000007753C000-memory.dmp
memory/5992-19-0x00000000775BB000-0x00000000775BC000-memory.dmp
memory/5992-18-0x0000000077528000-0x0000000077529000-memory.dmp