This smells fishy miles away.
Please, first explain what you are trying to share with this innovative promotion.
Then, since you are a junior, escrow the funds.
I would not touch this file. Easiest form of malware distribution!
You either infect your PC or help him succeed in finding other victims.
But, of course, if you just try to spread some open source software then go ahead. But pls at least calculate hash sums and prove its integrity.
It looks shady for me as well. Downloading files from a not trusted source is always risky, so take care.
Also, OP, why did you use short link (by goo.gl)? Please share full link to see if it is legit or not... really no need to shorten the link.