Primer paso de la investigacion. Se aportan el .apk, las carpetas con el apk extraido y el apk descompilado. El archivo API_DOCUMENTATION.md es un archivo donde se anotaran los descubrimientos del funcionamiento de la API, y los .py son scripts para probar la funcionalidad de la API con los métodos que vayamos encontrando. Finalmente, los archivos .js son scripts de Frida para extraer informacion de la APP durante la ejecucion.

apk_decompiled/sources/com/google/firebase/crashlytics/CrashlyticsRegistrar.java

@@ -0,0 +1,35 @@
+package com.google.firebase.crashlytics;
+
+import com.google.firebase.FirebaseApp;
+import com.google.firebase.analytics.connector.AnalyticsConnector;
+import com.google.firebase.components.Component;
+import com.google.firebase.components.ComponentContainer;
+import com.google.firebase.components.ComponentRegistrar;
+import com.google.firebase.components.Dependency;
+import com.google.firebase.crashlytics.internal.CrashlyticsNativeComponent;
+import com.google.firebase.heartbeatinfo.b;
+import com.google.firebase.installations.FirebaseInstallationsApi;
+import com.google.firebase.platforminfo.LibraryVersionComponent;
+import com.google.firebase.remoteconfig.interop.FirebaseRemoteConfigInterop;
+import com.google.firebase.sessions.api.FirebaseSessionsDependencies;
+import com.google.firebase.sessions.api.SessionSubscriber;
+import java.util.Arrays;
+import java.util.List;
+
+/* loaded from: classes3.dex */
+public class CrashlyticsRegistrar implements ComponentRegistrar {
+    private static final String LIBRARY_NAME = "fire-cls";
+
+    static {
+        FirebaseSessionsDependencies.INSTANCE.addDependency(SessionSubscriber.Name.CRASHLYTICS);
+    }
+
+    public FirebaseCrashlytics buildCrashlytics(ComponentContainer componentContainer) {
+        return FirebaseCrashlytics.init((FirebaseApp) componentContainer.get(FirebaseApp.class), (FirebaseInstallationsApi) componentContainer.get(FirebaseInstallationsApi.class), componentContainer.getDeferred(CrashlyticsNativeComponent.class), componentContainer.getDeferred(AnalyticsConnector.class), componentContainer.getDeferred(FirebaseRemoteConfigInterop.class));
+    }
+
+    @Override // com.google.firebase.components.ComponentRegistrar
+    public List<Component<?>> getComponents() {
+        return Arrays.asList(Component.builder(FirebaseCrashlytics.class).name(LIBRARY_NAME).add(Dependency.required((Class<?>) FirebaseApp.class)).add(Dependency.required((Class<?>) FirebaseInstallationsApi.class)).add(Dependency.deferred((Class<?>) CrashlyticsNativeComponent.class)).add(Dependency.deferred((Class<?>) AnalyticsConnector.class)).add(Dependency.deferred((Class<?>) FirebaseRemoteConfigInterop.class)).factory(new b(this, 2)).eagerInDefaultApp().build(), LibraryVersionComponent.create(LIBRARY_NAME, BuildConfig.VERSION_NAME));
+    }
+}