Authorities say at 12:06 a.m. on April 11th, the 63-year-old woman was inside her home when an unknown male driving a white Toyota Celica parked on the 7900 block of Loretta Avenue and entered her residence.
When the male approached her, police say he began sexually assaulting her.
While struggling with the victim, the suspect brandished a hammer and struck the woman several times in the head.
The victim began screaming and the suspect fled the home in an unknown direction.
Police describe the suspect as an Hispanic male, 20 years-of-age, 5'7, average build, long thick ponytail, wearing faded blue jeans, black hooded sweatshirt, Atlanta Braves baseball cap and was operating a white Toyota Celica.
Authorities have released surveillance video, which can be viewed here.
To submit a tip, call 215-686-TIPS (8477) or text a tip to PPD TIP or 773847.