The incident happened just after 3:30 a.m. on June 29 in Bedford Park.
Investigators say the suspect followed the 62-year-old victim into her Briggs Avenue apartment building.
He grabbed her from behind, viciously assaulted her and stole money before fleeing the scene.
The victim was treatment and released from the hospital.
KTRK-TV's sister station, WABC-TV in New York City, contributed to this report.
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