This is real.
Once a person amasses 1,700 WhopperCoins, he will be able to buy a new Whopper burger by using those coins instead of real money.
With more and more coins appearing and alternative uses for the blockchain being discovered it’s going to continue to be a high-profile target for cyber criminals. Not just financial transactions coins like Bitcoin, but also decentralized apps like Ethereum and cloud storage like Siacoin have already been developing in the space.
More on WhopperCoin here