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/analytics/ktx/AnalyticsKt.java

@@ -0,0 +1,61 @@
+package com.google.firebase.analytics.ktx;
+
+import com.google.android.gms.measurement.api.AppMeasurementSdk;
+import com.google.firebase.analytics.FirebaseAnalytics;
+import com.google.firebase.ktx.Firebase;
+import com.google.firebase.ktx.FirebaseKt;
+import kotlin.Metadata;
+import kotlin.Unit;
+import kotlin.jvm.functions.Function1;
+import kotlin.jvm.internal.Intrinsics;
+
+@Metadata(d1 = {"\u0000<\n\u0000\n\u0002\u0018\u0002\n\u0002\b\u0005\n\u0002\u0010\u000e\n\u0000\n\u0002\u0010\u0000\n\u0002\b\u0003\n\u0002\u0018\u0002\n\u0002\b\u0003\n\u0002\u0010\u0002\n\u0002\b\u0002\n\u0002\u0018\u0002\n\u0002\u0018\u0002\n\u0002\u0018\u0002\n\u0000\n\u0002\u0018\u0002\n\u0000\u001a3\u0010\u0010\u001a\u00020\u0011*\u00020\u00012\u0006\u0010\u0012\u001a\u00020\u00072\u0019\b\u0004\u0010\u0013\u001a\u0013\u0012\u0004\u0012\u00020\u0015\u0012\u0004\u0012\u00020\u00110\u0014¢\u0006\u0002\b\u0016H\u0086\bø\u0001\u0000\u001a+\u0010\u0017\u001a\u00020\u0011*\u00020\u00012\u0019\b\u0004\u0010\u0013\u001a\u0013\u0012\u0004\u0012\u00020\u0018\u0012\u0004\u0012\u00020\u00110\u0014¢\u0006\u0002\b\u0016H\u0086\bø\u0001\u0000\"\u001c\u0010\u0000\u001a\u0004\u0018\u00010\u0001X\u0080\u000e¢\u0006\u000e\n\u0000\u001a\u0004\b\u0002\u0010\u0003\"\u0004\b\u0004\u0010\u0005\"\u000e\u0010\u0006\u001a\u00020\u0007X\u0080T¢\u0006\u0002\n\u0000\"\u0014\u0010\b\u001a\u00020\tX\u0080\u0004¢\u0006\b\n\u0000\u001a\u0004\b\n\u0010\u000b\"\u0015\u0010\f\u001a\u00020\u0001*\u00020\r8F¢\u0006\u0006\u001a\u0004\b\u000e\u0010\u000f\u0082\u0002\u0007\n\u0005\b\u009920\u0001¨\u0006\u0019"}, d2 = {"ANALYTICS", "Lcom/google/firebase/analytics/FirebaseAnalytics;", "getANALYTICS", "()Lcom/google/firebase/analytics/FirebaseAnalytics;", "setANALYTICS", "(Lcom/google/firebase/analytics/FirebaseAnalytics;)V", "LIBRARY_NAME", "", "LOCK", "", "getLOCK", "()Ljava/lang/Object;", "analytics", "Lcom/google/firebase/ktx/Firebase;", "getAnalytics", "(Lcom/google/firebase/ktx/Firebase;)Lcom/google/firebase/analytics/FirebaseAnalytics;", "logEvent", "", AppMeasurementSdk.ConditionalUserProperty.NAME, "block", "Lkotlin/Function1;", "Lcom/google/firebase/analytics/ktx/ParametersBuilder;", "Lkotlin/ExtensionFunctionType;", "setConsent", "Lcom/google/firebase/analytics/ktx/ConsentBuilder;", "java.com.google.android.libraries.firebase.firebase_analytics_ktx_granule"}, k = 2, mv = {1, 8, 0}, xi = 48)
+/* loaded from: classes3.dex */
+public final class AnalyticsKt {
+    public static final String LIBRARY_NAME = "fire-analytics-ktx";
+    private static volatile FirebaseAnalytics zza;
+    private static final Object zzb = new Object();
+
+    public static final FirebaseAnalytics getANALYTICS() {
+        return zza;
+    }
+
+    public static final FirebaseAnalytics getAnalytics(Firebase firebase) {
+        Intrinsics.checkNotNullParameter(firebase, "<this>");
+        if (zza == null) {
+            synchronized (zzb) {
+                if (zza == null) {
+                    zza = FirebaseAnalytics.getInstance(FirebaseKt.getApp(Firebase.INSTANCE).getApplicationContext());
+                }
+            }
+        }
+        FirebaseAnalytics firebaseAnalytics = zza;
+        Intrinsics.checkNotNull(firebaseAnalytics);
+        return firebaseAnalytics;
+    }
+
+    public static final Object getLOCK() {
+        return zzb;
+    }
+
+    public static final void logEvent(FirebaseAnalytics firebaseAnalytics, String name, Function1<? super ParametersBuilder, Unit> block) {
+        Intrinsics.checkNotNullParameter(firebaseAnalytics, "<this>");
+        Intrinsics.checkNotNullParameter(name, "name");
+        Intrinsics.checkNotNullParameter(block, "block");
+        ParametersBuilder parametersBuilder = new ParametersBuilder();
+        block.invoke(parametersBuilder);
+        firebaseAnalytics.logEvent(name, parametersBuilder.getZza());
+    }
+
+    public static final void setANALYTICS(FirebaseAnalytics firebaseAnalytics) {
+        zza = firebaseAnalytics;
+    }
+
+    public static final void setConsent(FirebaseAnalytics firebaseAnalytics, Function1<? super ConsentBuilder, Unit> block) {
+        Intrinsics.checkNotNullParameter(firebaseAnalytics, "<this>");
+        Intrinsics.checkNotNullParameter(block, "block");
+        ConsentBuilder consentBuilder = new ConsentBuilder();
+        block.invoke(consentBuilder);
+        firebaseAnalytics.setConsent(consentBuilder.asMap());
+    }
+}