Ismael Saibari scored twice in the first half after Abdul-Latif Goumey was sent off and second-half goals from Ayoub el Kaabi, Hamza Igamane and Azzedine Ounahi completed the rout.
A sixth straight victory lifted Morocco to an unassailable lead with 18 points, and sealed a seventh appearance at the global showpiece with two matches to spare.
Morocco were shock semi-finalists at the 2022 World Cup in Qatar. The Atlas Lions topped a group including Croatia and Belgium and eliminated Spain and Portugal in the knockout stage.
The stunning run came to an end in the semi-finals as they lost 2-0 to France. Morocco finished fourth after losing a play-off against Croatia.