unpack_apk.py

#!/usr/bin/python3
import os
from androguard.core.apk import APK
import frida
import time
import sys
frida_script = """
Java.perform(function() {

    var f = Java.use("java.io.File")
    f.delete.implementation = function(a){
        if(this.getAbsolutePath().includes("jar")){
            console.log("[+] Delete catched =>" +this.getAbsolutePath())
        }
        return true

    }
})
"""

device = frida.get_usb_device()
f = sys.argv[1]
a = APK(f)
print("Package name ",a.get_package())
os.system("adb install "+f)
print(f + " installed ")
pid = device.spawn([a.get_package()])
session = device.attach(pid)
script = session.create_script(frida_script)
script.load()
device.resume(pid)
time.sleep(2) 
os.system("adb pull /data/data/"+a.get_package()+" .")
print("Decrypted dex pulled")
script.unload()
os.system("adb uninstall "+a.get_package())
print(a.get_package() + " uninstalled")
time.sleep(2)