Construction worker Damien Guerot, who holds a temporary Australian visa, was praised by French president Emmanuel Macron for his heroic attempt to protect shoppers.

The government will consider an extension of security guard Muhammad Taha's visa after he was severely injured during the April 13 stabbing rampage by 40-year-old Joel Cauchi.

Mr Taha holds a graduate visa that's due to expire in coming weeks.

His coworker Faraz Tahir was one of six people to be killed in the attack.

"As a direct victim of the incident, I believe I deserve recognition and consideration for citizenship," Mr Taha told The Australian.

"As well [as], the guards working alongside came running towards the point of incident and risking their lives ... (they) should be offered citizenship as well."

The prime minister said the "extraordinary acts" of Mr Taha and Mr Guerot, as well as fellow French tradie Silas Despreaux and NSW Police inspector Amy Scott, will forever be known in Australian culture.

"There was extraordinary stories of bravery in amongst the carnage and tragedy that we saw on Saturday," he said.

"It's a bit of light in amongst the darkness."