0ops CTF Qualifiers 2015 -simpleapk- Mobile Challenge

Download file :simple.apk



 Check file 



Decompiling APK file using apktool

    

Lets try to see if there is any occurrence of  0ctf


           
we found 0ctf {Too_Simple_Sometimes_Naive!!!} try to validate but its incorrect  .

Before analyzing  java source code , we try to see if there is other strings in process memory .

1- install and start  simple.apk in android emulator

 2- start Dalvik Debug Monitor

3-dump memory process


4- inspect the memory process using strings command :

Flag is  : 0ctf{It's_More_Than_Meets_The_Eye!}