You are right to be suspicious of this job. It was in violation of Upwork ToS and has already been removed by the team. You'll notice that the interview has been archived.
I just received a similar invitation and recognize it as a scam. The listing itself doesn't look that suspicious, but the invitation is clearly the problem. (Says the freelancer will list stuff on e.b.a.y. then get $50 per winning auction.)
I flagged the listing. Should I also send the link or the invitation to someone?
PS-It was from a "Kevin" and he wanted me to text him to let him know I was interested.
"Kevin" harrassed the heck out of me about a month ago. Constant invitations. Valeria is well aware of this guy - you could PM her, although I'm not sure which mod is working this weekend.