The incident took place between 5pm and 5.45pm on Tuesday 7 February 2023.
The victim, a man in his seventies, was assaulted after confronting a group of four young people who were found in the communal area of a residential building in Canterbury Road, Westgate.
The suspects then left after they were challenged by a second person.
The victim sustained head and foot injuries and was taken to a local hospital for treatment.
The first suspect was described as a slim white boy aged 14 or 15, around 5 ft tall. He had blonde curly hair and wore a black hooded top, dark trousers, and black and white trainers.
The second suspect was believed to be a slim white person in his 20s, and wore a hooded top pulled tight around his face.
The third boy was mixed race, around 14 or 15 years old with a stocky build. He wore a light blue hooded top and had short hair, shaved at the sides.
The fourth suspect was a white girl, of similar age with long brown hair.
Detectives are appealing for witnesses and information, or anyone who recognises the person in the e-fit, to contact Kent Police on 01843 222289 quoting 46/23933/23.
