Isis has called on Muslims to replicate the Bondi Beach attack, presenting the atrocity as an "instruction manual" for future massacres.
The terror group published the material in its English-language Voice of Khurasan publication.
The piece commended the alleged perpetrators, father Sajid Akram and son Naveed Akram, claiming they had struck a significant blow against Jewish people and those who back them.
The seven-page article features photographs of both suspects alongside images of grieving crowds at the Sydney beachfront.
It bears the title "The Sydney Attack: The Revenge of the Oppressed Ummah".
"Ummah" is the word for the global Muslim community.
"The Sydney attack was only a pebble from a mountain; we will continue to kill, by the permission of Allah, until you grow weary of burying the dead," the publication noted, according to The Australian.
The newsletter further declared that the assault "not only inflicted heavy physical casualties, but also delivered a major blow to the 'intellectual invasion' practiced by the Jews and their supporters".
It also claimed the violence "demonstrated to the Ummah that the path to salvation and the honor of Islam lies precisely in the way adopted by the attackers".
The seven-page article is titled 'The Sydney Attack: The Revenge of the Oppressed Ummah'
|VOICE OF KHURASAN
Islamic State labelled Muslims who spoke out against the massacre as "shameful", asserting that "there is no such thing as a noncombatant Kafir" or non-believer.
The terror network had previously referred to the Akrams as "soldiers" and "brave lions".
Security analysts in Australia believe the devastating incident - which claimed 15 lives and wounded scores more at the iconic Sydney location - drew inspiration from a 2024 Isis address encouraging followers to transform Jewish and Christian festivities into "bloody massacres".
Dr Levi West, a counter-terrorism specialist at the Australian National University, described the newsletter as "exactly the type of article and instructional material that underpinned the last wave of IS-inspired attacks in the West".
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The seven-page article features images of grieving crowds at the Sydney beachfront
| REUTERS"What we have seen since the Gaza war is a trend line of increased attacks on Jews and targets across the West," Dr West told The Australian.
"These articles are the kinds of things that inspire people to act and are a reminder, whether we want it or not, that counter-terrorism has to be a significant aspect of what our national security posture looks like."
Naveed Akram, 24, remains in custody facing nearly 60 charges, among them 15 murder counts and 40 charges of wounding with intent to kill.
Additional charges include firing a weapon publicly, showing a banned terrorist emblem, and positioning an explosive device near a building intending to cause harm.
Naveed Akram, 24, remains in custody facing nearly 60 charges
|GETTY
His father Sajid, 50, was fatally shot by officers at the scene.
In February, Akram appeared in a Sydney court for about five minutes via video link from prison.
Outside court, his lawyer, Ben Archbold, the 24-year-old was doing "as well as can be expected" while in custody in Goulburn supermax prison.
"Everyone knows it's supermax - very onerous conditions," he told journalists.
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