where can I download apk sample?

[baikaishiuc]

https://blog.zimperium.com/dissecting-mobile-native-code-packers-case-study/

I read the passage, but i'm not found the apk file where to download.

[fvrmatteo]

Any information about the application has been removed on purpose on the blogpost to avoid damaging the owner.

I would suggest you to find any malware sample protected by similar protections (Jiagu, TencentPacker, BaiduProtect) on Koodous, as those are the most commonly abused commercial packers/protectors used by malware writers.

As I was saying in another GitHub issue, the protection under analysis introduced some new features, but if you search for an older sample you should be able to replicate the techniques explored in the blogpost.