Herramientas para analizar APK (app Android)

APK son las siglas de Android Aplication Package. Este tipo de archivo contiene el programa o aplicación que queremos instalar de la misma manera que también el instalador. Por tanto diremos que se trata de un archivo instalable concebido para Android.

Para analizar una aplicación, lo primero es conseguir el archivo .APK (Android) o .IPA (iOS). Para descargar el .APK de la PlayStore se puede utilizar el servicio de APKPure. Solo se debe pasar la URL oficial de la PlayStore. Esta herramienta no hace ningún cambio a la aplicación descargada por lo que hasta la fecha es un servicio confiable.

Este repositorio GIT tiene un listado actualizado de herramientas para analizar aplicaciones de Android (APK), al igual que Android Arsenal.

Online Tools

Mobile Security Framework (MobSF): Es LA herramienta, la que recomiendo abiertamente para el análisis dinámico y estático de apps, independiente de la plataforma (Android o iOS), si vas a realizar el análisis de aplicaciones móviles habitualmente esta herramienta no puede faltar en tu arsenal.
Quick Android Review Kit o QARK: Es un framework de análisis automatizado de aplicaciones android que tiene poco tiempo de vida, esta enfocado al análisis de aplicaciones android y cuenta con muy buenas funcionalidades.
SandDroid (informe de ejemplo): Es una de las mejores herramientas online que podemos tener para el análisis automático de aplicaciones android, realiza análisis dinámico y estático, además de darnos un puntaje de riesgo basado en la información que logra recolectar.
Reverse.it (informe de ejemplo): Es una herramienta que también permite el análisis dinámico y estático de aplicaciones android de forma automatizada, es una especialmente útil cuando buscamos comportamientos anómalos dentro de las aplicaciones móviles.
Dexter: Para un análisis más detallado podemos usar (previo registro gratuito) esta herramienta, enfocada en el análisis de software que nos permite de forma colaborativa visualizar el funcionamiento de la aplicación con un potente buscador que nos ayudará a encontrar fácilmente funciones interesantes en las cuales centrar nuestra atención.
JavaDecompilers: Es una herramienta online que nos permite decompilar aplicaciones online abriendo la posibilidad de examinar su código fuente desde un simple navegador, si con Dexter encontraste funciones interesantes que analizar, con javadecompilers puedes examinar sus entrañas para ver su funcionamiento a nivel de código.

Análisis Estático

Amandroid
Android Decompiler: not free
Androwarn: detect and warn the user about potential malicious behaviours developped by an Android application.
ApkAnalyser
APKInspector
CFGScanDroid: Scans and compares CFG against CFG of malicious applications
ConDroid: Performs a combination of symoblic + concrete execution of the app
Droid Intent Data Flow Analysis for Information Leakage
DroidLegacy
FlowDroid
Madrolyzer: extracts actionable data like C&C, phone number etc.
PSCout: A tool that extracts the permission specification from the Android OS source code using static analysis
Several tools from PSU
Smali CFG generator
SmaliSCA: Smali Static Code Analysis
SPARTA: verifies (proves) that an app satisfies an information-flow security policy; built on the Checker Framework

Análisis Dinamico

Android DBI frameowork
Androl4b- A Virtual Machine For Assessing Android applications, Reverse Engineering and Malware Analysis
Android Malware Analysis Toolkit: (linux distro) Earlier it use to be an online analyzer
Mobile-Security-Framework MobSF: Mobile Security Framework is an intelligent, all-in-one open source mobile application (Android/iOS) automated pen-testing framework capable of performing static, dynamic analysis and web API testing.
AppUse – custom build for pentesting
Cobradroid – custom image for malware analysis
ViaLab Community Edition
Droidbox
~~Mercury~~
Drozer
Xposed: equivalent of doing Stub based code injection but without any modifications to the binary
Inspeckage: Android Package Inspector: dynamic analysis with api hooks, start unexported activities and more. (Xposed Module)
Android Hooker: Dynamic Java code instrumentation (requires the Substrate Framework)
ProbeDroid: Dynamic Java code instrumentation
Android Tamer: Virtual / Live Platform for Android Security Professionals
DECAF: Dynamic Executable Code Analysis Framework based on QEMU (DroidScope is now an extension to DECAF)
CuckooDroid: Android extension for Cuckoo sandbox
Mem: Memory analysis of Android (root required)
Crowdroid: unable to find the actual tool
AuditdAndroid: android port of auditd, not under active development anymore
Android Security Evaluation Framework: not under active development anymore
Android Reverse Engineering: ARE (android reverse engineering) not under active development anymore
Aurasium: Practical security policy enforcement for Android apps via bytecode rewriting and in-place reference monitor.
Android Linux Kernel modules
Appie: Appie is a software package that has been pre-configured to function as an Android Pentesting Environment.It is completely portable and can be carried on USB stick or smartphone.This is a one stop answer for all the tools needed in Android Application Security Assessment and an awesome alternative to existing virtual machines.
StaDynA: a system supporting security app analysis in the presence of dynamic code update features (dynamic class loading and reflection). This tool combines static and dynamic analysis of Android applications in order to reveal the hidden/updated behavior and extend static analysis results with this information.
DroidAnalytics: incomplete
Vezir Project: Virtual Machine for Mobile Application Pentesting and Mobile Malware Analysis
MARA: Mobile Application Reverse engineering and Analysis Framework
NowSecure Lab Automated: Enterprise tool for mobile app security testing both Android and iOS mobile apps. Lab Automated features dynamic and static analysis on real devices in the cloud to return results in minutes.
~~Taintdroid~~: requires AOSP compilation

Tools

AFLogical: Android forensics tool developed by viaForensics
Amandroid: Is a static analysis framework for Android apps
Android backup extractor: Android backup extractor
Android Loadable Kernel Modules
Android SDK
Android4me: J2ME port of Google's Android
Android-forensics: Open source Android Forensics app and framework
Android-random: Collection of extended examples for Android developers
Androwarn: Is a tool whose main aim is to detect and warn the user about potential malicious behaviours developped by an Android application
ApkAnalyser: Static, virtual analysis tool
Apk-extractor: Android Application (.apk) file extractor and Parser for Android Binary XML
Apkinspector: Powerful GUI tool for analysts to analyze the Android applications
Apk-recovery: Recover main resources from your .apk file
Audit tools
bunq fuzzer: Program for testing a mobile app by sending it semi-random inputs
Canhazaxs: A tool for enumerating the access to entries in the file system of an Android device
ConDroid: Symbolic/concolic execution of Android apps
DDMS: Dalvik Debug Monitor Server
Decaf-platform: DECAF Binary Analysis Platform
Device Monitor: Graphical user interface for several Android application debugging and analysis tools
Dexinfo: A very rudimentary Android DEX file parser
Dexter: Static android application analysis tool
Dexterity: Dex manipulation library
Dextools: Miscellaenous DEX (Dalvik Executable) tools
DidFail: Uses static analysis to detect potential leaks of sensitive information within a set of Android apps
Drozer: Comprehensive security audit and attack framework for Android
FindBugs: Find Bugs in Java Programs
Find Security Bugs: The FindBugs plugin for security audits of Java web applications.
FlowDroid: Is a context-, flow-, field-, object-sensitive and lifecycle-aware static taint analysis tool for Android applications
Heimdall: Cross-platform open-source tool suite used to flash firmware (aka ROMs) onto Samsung mobile devices
Hidex: Demo application where a method named thisishidden() in class MrHyde is hidden from disassemblers but no called by the app
Hooker: Automated Dynamic Analysis of Android Applications
Maldrolyzer: Simple framework to extract "actionable" data from Android malware (C&Cs, phone numbers etc.)
mbfuzzer (Mobile Application Fuzzer via SSL MITM): Mobile Application Fuzzer via SSL MITM
PScout: Analyzing the Android Permission Specification
Scalpel: A surgical debugging tool to uncover the layers under your app
SPARTA: Is building a toolset to verify the security of mobile phone applications
Apk Sign: Sign.jar automatically signs an apk with the Android test certificate.
SIIS Tools: This page contains a list of software tools created by the SIIS lab
Smali: An assembler/disassembler for Android's dex format
Smali-CFGs: Smali Control Flow Graph's
SmaliEx: A wrapper to get dex from oat
SmaliSCA: Static Code Analysis for Smali files
Soot: Java Optimization Framework
STAMP: STatic Analysis of Mobile Programs
Systrace: Analyze the performance capturing and displaying execution times of your applications and other Android system processes
TaintDroid: Tracking how apps use sensitive information required
Traceview: Graphical viewer for execution logs saved by your application
Undx: Bytecode translator
XML-apk-parser: Print AndroidManifest.xml directly from apk file

Análisis de Vulnerabilidades

AndroBugs Framework: Is an efficient Android vulnerability scanner that helps developers or hackers find potential security vulnerabilities in Android applications. No need to install on Windows.
Devknox: Autocorrect security issues as you write code
JAADAS: Joint Advanced Defect assEsment for android applications
Nogotofail
QARK: Quick Android Review Kit - This tool is designed to look for several security related Android application vulnerabilities, either in source code or packaged APKs.
Quixxi: Free automated vulnerability test.
SUPER Android Analyzer: Secure, Unified, Powerful and Extensible Rust Android Analyzer

Crawlers

Google play crawler (Java)
Google play crawler (Python)
Google play crawler (Node): get app details and download apps from official Google Play Store.
Aptoide downloader (Node): download apps from Aptoide third-party Android market
Appland downloader (Node): download apps from Appland third-party Android market

Fuzzing

AndroFuzz: A fuzzing utility for Android that focuses on reporting and delivery portions of the fuzzing process
An Android port of the melkor ELF fuzzer
IntentFuzzer: is a tool that can be used on any device using the Google Android operating system (OS)
Radamsa Fuzzer: An Android port of radamsa fuzzer
Honggfuzz: Security oriented fuzzer with powerful analysis options
Media Fuzzing Framework for Android
Melkor: An Android port of the melkor ELF fuzzer
MFFA: Media Fuzzing Framework for Android

Unpackers / Deobfuscators

Android Unpacker: Android Unpacker presented at Defcon 22 - Android Hacker Protection Level 0
Dehoser: Unpacker for the HoseDex2Jar APK Protection which packs the original file inside the dex header
Kisskiss: Unpacker for various Android packers/protectors
Simplify: Generic Android Deobfuscator
ClassNameDeobfuscator: Simple script to parse through the .smali files produced by apktool and extract the .source annotation lines.

Packers / Obfuscators

Allatori
APKfuscator: A generic DEX file obfuscator and munger
APKProtect
Bangcle
DexGuard: Optimizer and obfuscator for Android
HoseDex2Jar: Adds some instructions to the classes.dex file that Dex2Jar can not process
ProGuard: Shrinks, optimizes, and obfuscates the code by removing unused code and renaming classes, fields, and methods with semantically obscure names

Reverse Engineering

AndBug: A Scriptable Android Debugger
AndroChef: Java Decompiler apk, dex, jar and java class-files
Androguard: powerful, integrates well with other tools
Android Framework for Exploitation
Android OpenDebug: make any application on device debuggable (using cydia substrate)
APK Studio: Android Reverse Engineering Tool By Vaibhav Pandey a.k.a VPZ
Apktool– really useful for compilation/decompilation (uses smali)
ART: GUI for all your decompiling and recompiling needs
Bypass signature and permission checks for IPCs
Dare– .dex to .class converter
Dava: Decompiler for arbitrary Java bytecode
DecoJer: Java Decompiler
Dex2Jar: dex to jar converter
Dex-decomplier: Dex decompiler
Enjarify: dex to jar converter from Google
Dedexer: is a disassembler tool for DEX files
Emacs syntax coloring for smali files
Fino: Android small footprint inspection tool
Frida: inject javascript to explore applications and a GUI tool for it
Indroid– thread injection kit
IntentSniffer: is a tool that can be used on any device using the Google Android operating system (OS)
Introspy: Blackbox tool to help understand what an Android application is doing at runtime and assist in the identification of potential security issues
JAD: Java decompiler
JADX: Dex to Java decompiler
JD-GUI: Java decompiler
JEB Decompiler: The Interactive Android Decompiler
CFR: Java decompiler
Krakatau: Java decompiler
Luyten: Java Decompiler Gui for Procyon
Procyon: Java decompiler
FernFlower: Java decompiler
Redexer– apk manipulation
Smali viewer
Simplify Android deobfuscator: Generic Android Deobfuscator
Bytecode viewer: A Java 8 Jar & Android APK Reverse Engineering Suite (Decompiler, Editor, Debugger & More)
Radare2: Unix-like reverse engineering framework and commandline tools
Reverse Android: Reverse-engineering tools for Android applications
Xenotix-APK-Decompiler: APK decompiler powered by dex2jar and JAD
ZjDroid: Android app dynamic reverse tool based on Xposed framework