Fraud??? Anyone ever run into one like this.

I just got a call from my bank. Before I get into that checks usually come into our office and wire transfers of course go right to the bank. Well, the bank office received a check from Canada made out to us for $ 95,000.00 which is far bigger than any checks we usually get. They called because it seemed suspicious but the only thing they can figure out is that had they deposited it somehow it would enable the writer to clean out our account. They are forwarding it to their fraud department. I have encountered a lot of fraud attempts but never one like this so I am curious if anyone else has encountered something like this.