It happened at the station at 110 Street and Cathedral Parkway on Saturday, January 4th at 3:30 p.m.
The 36-year-old woman was walking out when the suspect came up from behind her and pulled her pants down.
The victim began to scream and the suspect ran off.
She was not injured.
The suspect is described as a 35-year-old black male, 6' tall, weighing 250 pounds, wearing a black cap, black sneakers, and a waist length black jacket.
Anyone with information in regards to this attempted rape is asked to call the NYPD's Crime Stoppers Hotline at 800-577-TIPS.