I can't find any information on this anywhere, but I'm seeing Atlant-Soyuz aircraft, which should have an ID of AYZ, flying with a code of MOA, which appears to be unallocated. The Atlant-Soyuz website now has a Moscow Airlines banner, but the rest of the site still refers to Atlant-Soyuz.
Are they rebranding as Moscow Airlines with a code of MOA?
If they are, here's a logo. If they're not, here's a logo anyway.
Rod