apk-info 1.0.3

APK full-featured parser

apk-info

A full-featured apk parser.

Features

• A malware-friendly zip extractor. Great article about BadPack technique;
• A malware-friendly axml and arsc extractor;
• A full AXML (Android Binary XML) implementation;
• A full ARSC (Android Resource) implementation;
• Support for extracting information contained in the APK Signature Block 42:
  • APK Signature scheme v1;
  • APK Signature scheme v2;
  • APK Signature scheme v3;
  • APK Signature scheme v3.1;
  • Stamp Block v1;
  • Stamp Block v2;
  • Apk Channel Block;
  • Google Play Frosting (there are plans, but there is critically little information about it);
• Correct extraction of the MainActivity based on how the Android OS does it;
• Bindings for python 3.10+ with typings - no more # type: ignore;
• And of course just a fast parser - 🙃

Usage

Installation

uv pip install apk-info

Get basic information about APK

from apk_info import APK

apk = APK("./path-to-file.apk")
package_name = apk.get_package_name()
main_activities = apk.get_main_activities()
min_sdk = apk.get_min_sdk_version()

print(f"Package Name: {package_name}")
print(f"Minimal SDK: {min_sdk}")

if not main_activities:
    print("apk is not launchable!")
    exit()

print(f"Main Activity: {package_name}/{main_activities[0]}")

Get information about signatures

import sys

from apk_info import APK, Signature

if len(sys.argv) < 2:
    print(f"usage: {sys.argv[0]} <apk>")
    sys.exit(1)

file = sys.argv[1]
apk = APK(file)

signatures = apk.get_signatures()
for signature in signatures:
    match signature:
        case Signature.V1() | Signature.V2() | Signature.V3() | Signature.V31():
            for cert in signature.certificates:
                print(f"{cert.subject=} {cert.valid_from=} {cert.valid_until=}")
        case Signature.ApkChannelBlock():
            print(f"got apk channel block: {signature.value}")
        case _:
            print(f"oh, cool, library added some new feature - {signature}")

For more information visit - homepage.