Security vision has captured the moment masked thugs bashed a man and stole his car in Melbourne’s south-east.

The footage shows a man collecting money from an ATM on Chesterville Road, Moorabbin, about 10pm yesterday.

Suddenly, three hooded offenders surround him, shoving him to the ground and repeatedly kicking and striking him with a stick.

In a tighter shot of the footage, one of the offenders appears to be holding a gun.

The victim, a man aged in his 50s, was repeatedly kicked by the thugs. Pictures: Supplied/9NEWS (9NEWS)

As the victim lies on the ground, the thugs race to his black Land Rover and flee the scene in the luxury car with the victim’s credit cards and cash.

Paramedics confirmed the victim, aged in his 50s, was assessed at the scene for upper-body injuries, and did not require further treatment in hospital.

Police are now investigating, with the 2015 Black Land Rover Discovery yet to be recovered.

Anyone with information is urged to contact Crime Stoppers on 1800 333 000