That flag's like the scheme of Serbia in Imperial Russian colours. It's amazing what sort of novel designs you can get by tweaking just a few elements.

That said,

Corsac foxes live in the steppes and semidesert of central and northeast Asia. They are found throughout Kazakhstan, Uzbekistan, and Turkmenistan, and through all except the northernmost regions of Mongolia. In the south, their range extends into the more northern parts of Iran, Tajikistan, Kyrgyzstan, Afghanistan, and China, and they can also be found in neighbouring regions of Russia.

...It's fudging their range a bit, but there's really only one appropriate anthem:

This fox is so cute X3