The Malaysians had put up a fight in the first quarter but capitulated in the later stages to suffer a big defeat.
For the Australians, it was a good comeback after having lost their opening match to Japan on Saturday.
It was the right response to the indifferent form they showed in the earlier math.
Malaysians penalty corner defending left much to be desired although they had initially matched the Australians stride for stride.
Australians coach Chris O’Reilly said that he was pleased with the big win and hoped to see the improvement going to the other games.
“It was a good show as we played well all around. We took our chances well and the penalty corners were much better. Today they kept a tight control of the match,” he said.
Both teams had lost their opening games on Saturday. The Malaysians went down 1-2 to India while the Australians lost by a similar margin to Japan.
Thus, both teams needed to win to keep their finals hopes alive.
Malaysian started well by pinning the Australians in deep defence. But they could make their strong start last.
The Australians against the run of play scored a field goal in the eighth minute through Belitz Hayden.
In the second quarter, the Australians had more chances and managed to increase the lead in the 26th minute through Alec Rassmusen.
The Malaysians reduced the deficit in the 37th minute off a penalty corner variation taken by Mohamed Hasrin.
But the fightback ended soon enough.
Damon Steffens scored form the penalty corner in the 44th minute while Jake Stannes also was on target in the 45th minute off another penalty corner.
The Malaysians conceded another two more goals, via the penalty corner set-piece moves in the 53rd and 54th minute.
Coby Green was on target for the fifth goal while Damon added another goal to his tally.
Malaysian coach Nur Saiful Zaini lamented on their porous defence in the third and fourth quarters.
“There were some good players in their initial stage, but we could not maintain it. We also gave away some soft goals due to poor defending.
“We need to improve on it in the coming matches and seek a more consistent performance,” he said.