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/remoteconfig/ktx/RemoteConfigKt.java

@@ -0,0 +1,62 @@
+package com.google.firebase.remoteconfig.ktx;
+
+import com.google.firebase.FirebaseApp;
+import com.google.firebase.ktx.Firebase;
+import com.google.firebase.remoteconfig.ConfigUpdate;
+import com.google.firebase.remoteconfig.FirebaseRemoteConfig;
+import com.google.firebase.remoteconfig.FirebaseRemoteConfigSettings;
+import com.google.firebase.remoteconfig.FirebaseRemoteConfigValue;
+import kotlin.Deprecated;
+import kotlin.Metadata;
+import kotlin.ReplaceWith;
+import kotlin.Unit;
+import kotlin.jvm.functions.Function1;
+import kotlin.jvm.internal.Intrinsics;
+import kotlinx.coroutines.flow.Flow;
+import kotlinx.coroutines.flow.FlowKt;
+
+@Metadata(d1 = {"\u0000D\n\u0000\n\u0002\u0018\u0002\n\u0002\u0018\u0002\n\u0002\u0018\u0002\n\u0002\b\u0005\n\u0002\u0018\u0002\n\u0002\b\u0003\n\u0002\u0018\u0002\n\u0000\n\u0002\u0018\u0002\n\u0002\u0018\u0002\n\u0002\u0010\u0002\n\u0002\u0018\u0002\n\u0000\n\u0002\u0018\u0002\n\u0000\n\u0002\u0010\u000e\n\u0000\n\u0002\u0018\u0002\n\u0000\u001a\u001f\u0010\f\u001a\u00020\r2\u0017\u0010\u000e\u001a\u0013\u0012\u0004\u0012\u00020\u0010\u0012\u0004\u0012\u00020\u00110\u000f¢\u0006\u0002\b\u0012\u001a\u0015\u0010\u0013\u001a\u00020\u0014*\u00020\u00032\u0006\u0010\u0015\u001a\u00020\u0016H\u0087\u0002\u001a\u0012\u0010\b\u001a\u00020\u0003*\u00020\t2\u0006\u0010\u0017\u001a\u00020\u0018\"$\u0010\u0000\u001a\b\u0012\u0004\u0012\u00020\u00020\u0001*\u00020\u00038FX\u0087\u0004¢\u0006\f\u0012\u0004\b\u0004\u0010\u0005\u001a\u0004\b\u0006\u0010\u0007\"\u0015\u0010\b\u001a\u00020\u0003*\u00020\t8F¢\u0006\u0006\u001a\u0004\b\n\u0010\u000b¨\u0006\u0019"}, d2 = {"configUpdates", "Lkotlinx/coroutines/flow/Flow;", "Lcom/google/firebase/remoteconfig/ConfigUpdate;", "Lcom/google/firebase/remoteconfig/FirebaseRemoteConfig;", "getConfigUpdates$annotations", "(Lcom/google/firebase/remoteconfig/FirebaseRemoteConfig;)V", "getConfigUpdates", "(Lcom/google/firebase/remoteconfig/FirebaseRemoteConfig;)Lkotlinx/coroutines/flow/Flow;", "remoteConfig", "Lcom/google/firebase/ktx/Firebase;", "getRemoteConfig", "(Lcom/google/firebase/ktx/Firebase;)Lcom/google/firebase/remoteconfig/FirebaseRemoteConfig;", "remoteConfigSettings", "Lcom/google/firebase/remoteconfig/FirebaseRemoteConfigSettings;", "init", "Lkotlin/Function1;", "Lcom/google/firebase/remoteconfig/FirebaseRemoteConfigSettings$Builder;", "", "Lkotlin/ExtensionFunctionType;", "get", "Lcom/google/firebase/remoteconfig/FirebaseRemoteConfigValue;", "key", "", "app", "Lcom/google/firebase/FirebaseApp;", "com.google.firebase-firebase-config"}, k = 2, mv = {1, 7, 1}, xi = 48)
+/* loaded from: classes3.dex */
+public final class RemoteConfigKt {
+    @Deprecated(message = "Migrate to use the KTX API from the main module: https://firebase.google.com/docs/android/kotlin-migration.", replaceWith = @ReplaceWith(expression = "", imports = {}))
+    public static final FirebaseRemoteConfigValue get(FirebaseRemoteConfig firebaseRemoteConfig, String key) {
+        Intrinsics.checkNotNullParameter(firebaseRemoteConfig, "<this>");
+        Intrinsics.checkNotNullParameter(key, "key");
+        FirebaseRemoteConfigValue value = firebaseRemoteConfig.getValue(key);
+        Intrinsics.checkNotNullExpressionValue(value, "this.getValue(key)");
+        return value;
+    }
+
+    public static final Flow<ConfigUpdate> getConfigUpdates(FirebaseRemoteConfig firebaseRemoteConfig) {
+        Intrinsics.checkNotNullParameter(firebaseRemoteConfig, "<this>");
+        return FlowKt.callbackFlow(new RemoteConfigKt$configUpdates$1(firebaseRemoteConfig, null));
+    }
+
+    @Deprecated(message = "Migrate to use the KTX API from the main module: https://firebase.google.com/docs/android/kotlin-migration.", replaceWith = @ReplaceWith(expression = "", imports = {}))
+    public static /* synthetic */ void getConfigUpdates$annotations(FirebaseRemoteConfig firebaseRemoteConfig) {
+    }
+
+    public static final FirebaseRemoteConfig getRemoteConfig(Firebase firebase) {
+        Intrinsics.checkNotNullParameter(firebase, "<this>");
+        FirebaseRemoteConfig firebaseRemoteConfig = FirebaseRemoteConfig.getInstance();
+        Intrinsics.checkNotNullExpressionValue(firebaseRemoteConfig, "getInstance()");
+        return firebaseRemoteConfig;
+    }
+
+    public static final FirebaseRemoteConfig remoteConfig(Firebase firebase, FirebaseApp app) {
+        Intrinsics.checkNotNullParameter(firebase, "<this>");
+        Intrinsics.checkNotNullParameter(app, "app");
+        FirebaseRemoteConfig firebaseRemoteConfig = FirebaseRemoteConfig.getInstance(app);
+        Intrinsics.checkNotNullExpressionValue(firebaseRemoteConfig, "getInstance(app)");
+        return firebaseRemoteConfig;
+    }
+
+    public static final FirebaseRemoteConfigSettings remoteConfigSettings(Function1<? super FirebaseRemoteConfigSettings.Builder, Unit> init) {
+        Intrinsics.checkNotNullParameter(init, "init");
+        FirebaseRemoteConfigSettings.Builder builder = new FirebaseRemoteConfigSettings.Builder();
+        init.invoke(builder);
+        FirebaseRemoteConfigSettings build = builder.build();
+        Intrinsics.checkNotNullExpressionValue(build, "builder.build()");
+        return build;
+    }
+}