Most of these scams find things that are topical/relevant but are difficult or impossible to investigate or validate their product exists while using other companies past promotional material as their own. The trick is to look legit without actually making any product or providing said service.
Commonly referred to as 'vapor' product or service.
And then there are scams that actually use the word vapor in the product names or company names. The irony of which always cracks me up.