The assault happened near St Peter & St Paul’s Church (credit: Google Maps)
The 32-year-old was left with a broken eye socket in the attack as he walked near the cemetery at St Peter & Paul’s Church last month.
The attack happened between 10-11pm on Friday, 1 November.
Police say the victim was knocked unconscious and later found out that his phone and cash had been stolen.
The suspects are all described as white males around 6ft tall.
Anyone who witnessed the attack, or has information, is asked to call Grays CID on 101 quoting crime reference 42/176238/19.
Alternatively, they can contact Crimestoppers anonymously on 0800 555 111.
Tags: Grays, Thurrock