Ryan Mmaee opened the score for Morocco on a penalty kick (21st), before coming back to score his second goal with a nice shot that went in the back of the net of the goalkeeper Moussa Camara (29th).
Ayoub El Kaabi sealed the fate of the match by scoring the third goal for the Atlas Lions in the 60th minute.
Morocco, leader of group I with 18 points, had already secured its qualification for the last qualifying round of the World Cup in Qatar from the 4th day.
Guinea (4 pts) occupies the 3rd place, preceded by Guinea-Bissau, 2nd, with 6 points, while Sudan is bottom of the table (3 pts).