The latest research discovered Andariel, a part of the Lazarus group, introduced several new malware families, such as YamaBot and MagicRat, updated versions of NukeSped and DTrack.  Andariel group executed the Maui ransomware attack using the DTrack backdoor by exploiting the Log4j vulnerability to gain access. US Cybersecurity and Infrastructure Security Agency (CISA) reported that Maui ransomware targets mainly companies and government organizations in the US healthcare sector.

Source: GBHackers