The Shlayer Trojan installs other malware
https://www.bleepingcomputer.com/news/security/10-percent-of-all-macs-shlayered-malware-cocktail-served/
Many people think that malware only targets Windows and that Macs are safe, but a new report shows how a single Apple malware called Shlayer has attacked over 10% of all Apple computers monitored by an antivirus company.
Instead of distributing the Shlayer Trojan via phishing attacks or through other malware, the threat actors focus on trending events or popular shows and then build fake web sites surrounding them.