Belarusian hackers apparently did pretty precisely this to the biggest airline in the Russia, Aeroflot. They had been doing something for a whole year that successfully disabled Aeroflot’s backups, and deleted everything from every computer belonging to that company. They no longer know who’s working for them, for example.

I’d assume they must’ve done pretty precisely what you just described. So, it has been done once. And it probably will be done again, somewhere.