Friday, April 3, 2015

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!}

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