Do you already have the file and need assistance or analyzing it safely ?
Using Python with socket and tkinter , you can create your own Netcat GUI in under 200 lines. This is the only way to guarantee no backdoor, because you write it.
A quality GUI does not sacrifice speed for visuals. It implements "obvious" keyboard shortcuts so that once you are proficient, you feel "as close as you can to a console despite using a GUI".
# 3. Upload to VirusTotal (CLI) vt upload .\netcat_gui_v13.exe --wait