03-23-2024, 03:18 PM
You're correct, it's not currently supported in Hashcat although other tools such as MDXFind do support it, as "MD5SHA1MD5". If you want to request it as a hash-mode, you can do it on the GitHub issues page. It should be a fairly simple mode to add
https://github.com/hashcat/hashcat/issues
https://github.com/hashcat/hashcat/issues