Wubuntu1124042x64iso+exclusive

I need to check if there's any official Ubuntu ISO with such a name. A quick search in the official Ubuntu repositories and download pages shows no ISO named "wubuntu1124042x64iso". The closest might be older versions like 11.04 (Natty Narwhal), but that's from 2011 and the architecture is x86 64-bit. However, the version number here is 1124042, which doesn't align with Ubuntu's typical release cycle (which is every 6 months for stable releases and every 2 years for LTS).