Police are appealing to the public for information to help identify the attacker who was wearing a green jacket.
The 82-year-old is in hospital with a broken hip after the assault in Leith.
A 26-year-old woman was attacked in the early hours of Saturday, October 3.
A 16-year-old is due in court in connection with three separate incidents.
Two suspects, aged 21 and 20, have been arrested and charged over the incident in Paisley on Friday.
The 'violent unprovoked' assault happened at around 11pm on Thursday in Livingston.
The 64-year-old victim had asked a woman to move her purple Skoda as it was blocking a driveway.
The serious assault took place outside the supermarket in West Lothian last Wednesday.
The victim was assaulted near to the River Dee in Aberdeen on Saturday morning.
The 25-year-old victim was attacked within Pittencrieff Park in Dunfermline at around 6.20am on Sunday.
The 22-year-old victim was targeted by four men within the Old Mine Nature Park in Uddingston.
The assault happened in Dundee's Argyllgait at around 11.10pm on Saturday, January 25.
The incident happened on Broomielaw near to Brown Street in Glasgow at around 8pm on Monday, March 2.
Sean Macleod was charged with assault and behaving in a threatening or abusive manner.
Finlay McIntyre, 52, and Karen Branwhite, 38, were stabbed outside their front door in Greenock.
The 17-year-old, who cannot be named for legal reasons, kicked a constable outside Hampden Park.
The former first minister face 14 charges including attempted rape and multiple sexual assaults.
The victim was knocked to the ground in the assault and had to be taken to hospital.
Keirin McMillan, 20, Aron McMillan, 17, and Levi Hunter, 16, murdered Alasdair Forsyth in Edinburgh.
Councillor Alan Donnelly had denied kissing and touching a man, but was convicted after a trial last year.