From the article: "The shellcode used in this exploit is constructed in a similar manner to shellcode observed in previous North Korean exploits."
[1] https://blog.cyberproof.com/blog/which-countries-are-most-da...
[2] https://blog.cloudflare.com/ddos-attack-trends-for-2021-q4/
"Look, see? NK. We even copied some Korean words into the comments."