Download the image for proper analysis
As you can see, this chall is similar to the "plane sight" chall.
Lets use this webpage to decode this cyrillic encoding
Yup, that's our flag, just as we did for the first plane sight chall we'll be removing flag= which gives us a working flag
FLAG:-ACTF{17'5_a11_1n_Th3_m3T4d473}