Grampian Police are still hunting for the person who attacked the 22-year-old in the Powis area of Aberdeen on Saturday morning.
The rapist is around 30 years old, white, about 6ft, of medium build and has an unkempt appearance, as if he had been sleeping rough.
He is thought to have been wearing a black hooded top, a red, white and blue scarf, and grey or black hiking boots.
More than 100 police officers are involved in the investigation and Detective Chief Inspector Martin Dunn described the rape as a "particularly nasty attack".
Grampian Police said their investigation is not focusing on a specific person.