KUALA LUMPUR (REUTERS) - A Malaysian court will begin hearing on Feb 15 an appeal by former prime minister Najib Razak against his conviction on graft and money-laundering charges linked to the state fund 1MDB, a prosecutor said on Thursday (Oct 1).

Najib was sentenced to 12 years in jail and fines of nearly US$50 million (S$68 million) in July on seven charges over illegally receiving US$10 million misappropriated from SRC International, a former unit of 1Malaysia Development Berhad (1MDB).

The sentence was stayed pending the appeal.

He denied wrongdoing.

The Court of Appeal has set 12 days to hear Najib's bid, from Feb 15, prosecutor Mohd Ashrof Adrin Kamarul told Reuters in a text message.

US and Malaysian authorities say US$4.5 billion is believed to have been stolen from 1MDB, a fund Najib founded to promote economic development, and used by his associates to buy art, luxury real estate, and finance movies including The Wolf of Wall Street in 2013.

Prosecutors say more than US$1 billion from 1MDB made its way into Najib's personal bank accounts, over which he faces a total of 42 criminal charges.