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/ParametersBuilder.java

@@ -0,0 +1,44 @@
+package com.google.firebase.analytics.ktx;
+
+import android.os.Bundle;
+import kotlin.Metadata;
+import kotlin.jvm.internal.Intrinsics;
+
+@Metadata(d1 = {"\u00000\n\u0002\u0018\u0002\n\u0002\u0010\u0000\n\u0002\b\u0002\n\u0002\u0018\u0002\n\u0002\b\u0003\n\u0002\u0010\u0002\n\u0000\n\u0002\u0010\u000e\n\u0000\n\u0002\u0010\u0011\n\u0000\n\u0002\u0010\u0006\n\u0002\u0010\t\n\u0000\u0018\u00002\u00020\u0001B\u0005¢\u0006\u0002\u0010\u0002J\u0016\u0010\u0007\u001a\u00020\b2\u0006\u0010\t\u001a\u00020\n2\u0006\u0010\u000b\u001a\u00020\u0004J!\u0010\u0007\u001a\u00020\b2\u0006\u0010\t\u001a\u00020\n2\f\u0010\u000b\u001a\b\u0012\u0004\u0012\u00020\u00040\f¢\u0006\u0002\u0010\rJ\u0016\u0010\u0007\u001a\u00020\b2\u0006\u0010\t\u001a\u00020\n2\u0006\u0010\u000b\u001a\u00020\u000eJ\u0016\u0010\u0007\u001a\u00020\b2\u0006\u0010\t\u001a\u00020\n2\u0006\u0010\u000b\u001a\u00020\u000fJ\u0016\u0010\u0007\u001a\u00020\b2\u0006\u0010\t\u001a\u00020\n2\u0006\u0010\u000b\u001a\u00020\nR\u0011\u0010\u0003\u001a\u00020\u0004¢\u0006\b\n\u0000\u001a\u0004\b\u0005\u0010\u0006¨\u0006\u0010"}, d2 = {"Lcom/google/firebase/analytics/ktx/ParametersBuilder;", "", "()V", "bundle", "Landroid/os/Bundle;", "getBundle", "()Landroid/os/Bundle;", "param", "", "key", "", "value", "", "(Ljava/lang/String;[Landroid/os/Bundle;)V", "", "", "java.com.google.android.libraries.firebase.firebase_analytics_ktx_granule"}, k = 1, mv = {1, 8, 0}, xi = 48)
+/* loaded from: classes3.dex */
+public final class ParametersBuilder {
+    private final Bundle zza = new Bundle();
+
+    /* renamed from: getBundle, reason: from getter */
+    public final Bundle getZza() {
+        return this.zza;
+    }
+
+    public final void param(String key, double value) {
+        Intrinsics.checkNotNullParameter(key, "key");
+        this.zza.putDouble(key, value);
+    }
+
+    public final void param(String key, long value) {
+        Intrinsics.checkNotNullParameter(key, "key");
+        this.zza.putLong(key, value);
+    }
+
+    public final void param(String key, Bundle value) {
+        Intrinsics.checkNotNullParameter(key, "key");
+        Intrinsics.checkNotNullParameter(value, "value");
+        this.zza.putBundle(key, value);
+    }
+
+    public final void param(String key, String value) {
+        Intrinsics.checkNotNullParameter(key, "key");
+        Intrinsics.checkNotNullParameter(value, "value");
+        this.zza.putString(key, value);
+    }
+
+    public final void param(String key, Bundle[] value) {
+        Intrinsics.checkNotNullParameter(key, "key");
+        Intrinsics.checkNotNullParameter(value, "value");
+        this.zza.putParcelableArray(key, value);
+    }
+}