The Real Madrid star scored his fourth goal of the tournament as Fernando Santos' side picked up their first win from two outings and position themselves as the favourites to top their group.
"Please keep Pepe in your prayers after this assault from Benatia", the World Cup Goals account jokingly captioned the video.
The Real Madrid star struck in the fourth minute in Moscow to surpass Hungarian legend Ferenc Puskas as Europe's all-time leading scorer with 85 worldwide goals.
Morocco, who had a real go at the Luzhniki Stadium but failed to convert their chances, are pointless having also lost 1-0 to Iran and can not progress to the second round.
"We misplaced a lot of passes, we lost confidence.it was inexplicable". He could not get the ball up and over a solid wall of defenders on either occasion.
They qualified for the finals without conceding a goal in six matches yet somehow opted against marking the most unsafe attacker at the tournament in the six yard box when Joao Moutinho swung in a cross from a short corner and Ronaldo duly buried the header.
Morocco continued to carve out opportunities as Patricio clung on well to a curling Belhanda shot, and the Portugal keeper pulled off an even better save minutes later.
It was his 85th global goal, taking him beyond Hungarian Ferenc Puskas's European record, with only Iran's Ali Daei ahead of him on 109.
The goal - Ronaldo's fourth in two games - made him the top-scoring European in global football to dump Herve Renard's Morocco out of the World Cup.
The second-half was a carbon copy of the first.
Morocco's Nordin Amrabat has slammed the lack of use of VAR during his side's 1-0 defeat to Portugal.
The Real Madrid forward threatened a second soon after, swivelling on the edge of the area and scuffing just wide after a powerful run from left-back Raphael Guerreiro.
Portugal have no such concerns and will seek to win the group in their final game against Iran, while Morocco face Spain, both on June 25.
The result was harsh on Morocco, as was their loss against Iran in their opening game, but it reflected their difficulty producing the telling final ball, despite so much good work in the other two thirds of the pitch.