According to Campaign US, people close to the issue said the media account was reviewed across the US and other global markets.
Locally, sources close to the issue confirmed to B&T Mindshare Australia picked up the account as part of the global review.
The account is said to be worth between $400 million (AU$592m) and $950 million (AU$1.4b) globally, depending on the number of markets included in the remit.
Brands that fall under the Ferrero umbrella include Ferrero Rocher, Tic Tac, Nutella and Kinder.