Help with decode PNG of Dragon Fighters：Multiverse Android Game

[heirtalent]

Hello everyone,

Can someone help me decode this file PNG file , tried use a lot of tools but no hope ( AssetStudio, cocos, AssetBundleExtractor....), they are supposed to be .png files from Dragon Fighters：Multiverse Android Game
 So any help is trully appreaciated. 
Thank you in advance.
Link a PNG file from game:
https://www.mediafire.com/file/j9evx6x52...1.png/file