As this application is not protected by any APK protector.
You can use Dex2Jar (https://github.com/pxb1988/dex2jar) to decompile it to readable Java source code.
If you do a quick read of the decompiled source code, you will realise that it is using DES ECB mode to encrypt/decrypt the important information.
Next, you can look at com.phone.stop.c.f
Inside this class, function a contains the key to decrypt the important information.
public static String a(String paramString)
{
try
{
String str = new b("staker").b(paramString);
return str;
}
catch (Exception localException)
{
localException.printStackTrace();
}
return "";
}
The decryption method can be found in com.phone.stop.e.b class
Finally, to get all the information which you wanted.
Go to com.phone.stop.db.a class and you will find the following functions that uses the decryption method.
public String c()
{
return this.b.getString("i_want_xxoo", "c177d8e3b0dc0bf95e754bf8bcabdf83");
}
public String d()
{
return this.b.getString("app_end_time", "f836c71f8d6fa6d0957f3215d8b6f13fcef7f91916798b69");
}
public String g()
{
return this.b.getString("send_email_account", "a6c7be89424beee740a2e7cd07cf2f598e2c10bd4959981e");
}
public String h()
{
return this.b.getString("receive_email_account", "a6c7be89424beee740a2e7cd07cf2f598e2c10bd4959981e");
}
public String i()
{
return this.b.getString("send_email_pwd", "cfc69bfbf58f1d25a075fba7da9202c8d0c3804faf7f793c");
}
If you are too lazy to code the decryption method.
You can use this online too.
http://des.online-domain-tools.com/
Decrypting the following
this.b.getString("i_want_xxoo", "c177d8e3b0dc0bf95e754bf8bcabdf83");
will get you:
13428697096
this.b.getString("app_end_time", "f836c71f8d6fa6d0957f3215d8b6f13fcef7f91916798b69");
2015-09-08 09:08:22
this.b.getString("send_email_account", "a6c7be89424beee740a2e7cd07cf2f598e2c10bd4959981e");
m13714277170@163.com
this.b.getString("receive_email_account", "a6c7be89424beee740a2e7cd07cf2f598e2c10bd4959981e");
m13714277170@163.com
this.b.getString("send_email_pwd", "cfc69bfbf58f1d25a075fba7da9202c8d0c3804faf7f793c");
nacvgbpjizzosreq
Hope this is simple and useful. :D