Brazil had to play most of the game with 10 men as Douglas Luis had seen red in the 13th minute. Malcom came on as a substitute in the 73rd minute, replacing Anthony.
After two matches, Brazil stand on four points and share first place in Group D with Ivory Coast. Next up is Saudi Arabia for the Brazilians.
Brazil are the defending Olympic champion after winning on gold at the 2016 Rio de Janeiro Games.
