Analysis
- user interaction
yes - max time kernel
148s - max time network
151s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260629-en - resource tags
- submitted
01/07/2026, 17:15
General
- Target loader_3c5b056bedf3028f.js
- Size 306KB
- Sample260701-vszccacx2x
- SHA256 1b48a7b1d0245232e771e1bd95982fac7726d2f8ca97cb5f54fc4bd8d8922d1b
Malware Config
Extracted
-
remcos
-
7.2.6 Light
-
888vnd
-
mediaware.nl:443
-
audio_folder
MicRecords
-
audio_path
ApplicationPath
-
audio_record_time
5
-
connect_delay
5
-
connect_interval
2
-
copy_file
remcos.exe
-
copy_folder
Remcos
-
delete_file
false
-
hide_file
false
-
hide_keylog_file
false
-
install_flag
false
-
keylog_crypt
false
-
keylog_file
logs.dat
-
keylog_flag
false
-
keylog_folder
remcos
-
mouse_option
false
-
mutex
Rmc-CP7HF1
-
screenshot_crypt
false
-
screenshot_flag
false
-
screenshot_folder
Screenshots
-
screenshot_path
%AppData%
-
screenshot_time
10
-
take_screenshot_option
false
-
take_screenshot_time
5
Signatures
- Family: Remcos
Remcos is a closed-source remote control and surveillance software.
- Executes dropped EXE 1 IoCs
- UPX packed file 17 IoCs
Detects executables packed with UPX/modified UPX open source packer.
- Command and Scripting Interpreter: JavaScript 1 TTPs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious use of FindShellTrayWindow 1 IoCs
- Suspicious use of SendNotifyMessage 1 IoCs
- Suspicious use of WriteProcessMemory 1 IoCs
Processes
-
C:\Windows\system32\wscript.exewscript.exe C:\Users\Admin\AppData\Local\Temp\loader_3c5b056bedf3028f.js1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\taskhostw.exe"C:\Users\Admin\AppData\Local\Temp\taskhostw.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
taskhostw.exe
memory/5864-7-0x0000000000400000-0x000000000048A000-memory.dmp
memory/5864-9-0x0000000000489000-0x000000000048A000-memory.dmp
memory/5864-10-0x0000000000400000-0x000000000048A000-memory.dmp
memory/5864-11-0x0000000000400000-0x000000000048A000-memory.dmp
memory/5864-12-0x0000000000400000-0x000000000048A000-memory.dmp
memory/5864-13-0x0000000000400000-0x000000000048A000-memory.dmp
memory/5864-14-0x0000000000400000-0x000000000048A000-memory.dmp
memory/5864-15-0x0000000000400000-0x000000000048A000-memory.dmp
memory/5864-16-0x0000000000400000-0x000000000048A000-memory.dmp
memory/5864-17-0x0000000000400000-0x000000000048A000-memory.dmp
memory/5864-18-0x0000000000400000-0x000000000048A000-memory.dmp
memory/5864-19-0x0000000000400000-0x000000000048A000-memory.dmp
memory/5864-20-0x0000000000400000-0x000000000048A000-memory.dmp
memory/5864-21-0x0000000000400000-0x000000000048A000-memory.dmp
memory/5864-22-0x0000000000400000-0x000000000048A000-memory.dmp
memory/5864-23-0x0000000000400000-0x000000000048A000-memory.dmp
memory/5864-24-0x0000000000400000-0x000000000048A000-memory.dmp