AUR malware and DDoS attacks are not even correlated, for there to be any minimally credible speculation about causation.

Such "speculation" would only come from someone very unintelligent who would see two news items about X within a smallish time frame (weeks), then obtusely start drawing connection lines between them where there is probably* none.

* We don't know who the malware spreaders or the DDoS attackers are. So we can't be 100% certain about anything. But indications point to script kiddies being behind AUR malware attempts. And a more sophisticated entity behind the DDoS attacks, not just some kid or an adult with a grudge paying a botnet, like some are sillily suggesting. One should also not forget that there was always the conspiracy theory that DDoS protection service providers are behind most DDoS attacks (before AI crawlers accidentally took that crown).