cryptax, Details of the "KangaPack" packer (used in Fluhorse). It packs the payload in its own classes.dex format.
Also, it's a good opportunity to use ImHex - a lovely hex editor with pattern editor etc.https://cryptax.medium.com/inside-kangapack-the-kangaroo-packer-with-native-decryption-3e7e054679c4
Have a nice week-end!