Stonnington Crime Investigation Unit detectives are hoping to identify a thief who used a stolen credit card in Prahran on 21 March.
Police have been told a stolen credit card was used by an unknown man to purchase food from a fast food outlet on Chapel Street about 5am.
The man then attended a nearby ATM and used the same stolen card to withdraw a large amount of cash.
The offender is perceived to be Caucasian in appearance, aged 25 to 35-years-old with brown hair and sideburns.
He was wearing a white baseball cap with the word 'Childe' on the front, a blue Adidas jacket with white stripes, tan pants and black runners.
Police have released an image a man who they believe may be able to assist with their enquiries.
Anyone with any information is urged to contact Crime Stoppers on 1800 333 000 or submit a confidential crime report at www.crimestoppersvic.com.au