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/kotlinx/android/parcel/IgnoredOnParcel.java

@@ -0,0 +1,17 @@
+package kotlinx.android.parcel;
+
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+import kotlin.Metadata;
+import kotlin.annotation.AnnotationRetention;
+import kotlin.annotation.AnnotationTarget;
+
+@Target({})
+@Metadata(d1 = {"\u0000\n\n\u0002\u0018\u0002\n\u0002\u0010\u001b\n\u0000\b\u0087\u0002\u0018\u00002\u00020\u0001B\u0000¨\u0006\u0002"}, d2 = {"Lkotlinx/android/parcel/IgnoredOnParcel;", "", "kotlin-android-extensions-runtime"}, k = 1, mv = {1, 9, 0}, xi = 48)
+@kotlin.annotation.Target(allowedTargets = {AnnotationTarget.PROPERTY})
+@Retention(RetentionPolicy.SOURCE)
+@kotlin.annotation.Retention(AnnotationRetention.SOURCE)
+/* loaded from: classes3.dex */
+public @interface IgnoredOnParcel {
+}

apk_decompiled/sources/kotlinx/android/parcel/Parceler.java

@@ -0,0 +1,24 @@
+package kotlinx.android.parcel;
+
+import android.os.Parcel;
+import kotlin.Metadata;
+import kotlin.NotImplementedError;
+
+@Metadata(d1 = {"\u0000,\n\u0002\u0018\u0002\n\u0000\n\u0002\u0010\u0000\n\u0002\b\u0002\n\u0002\u0018\u0002\n\u0002\b\u0002\n\u0002\u0010\u0011\n\u0000\n\u0002\u0010\b\n\u0002\b\u0002\n\u0002\u0010\u0002\n\u0002\b\u0003\bf\u0018\u0000*\u0004\b\u0000\u0010\u00012\u00020\u0002J\u0015\u0010\u0003\u001a\u00028\u00002\u0006\u0010\u0004\u001a\u00020\u0005H&¢\u0006\u0002\u0010\u0006J\u001b\u0010\u0007\u001a\b\u0012\u0004\u0012\u00028\u00000\b2\u0006\u0010\t\u001a\u00020\nH\u0016¢\u0006\u0002\u0010\u000bJ!\u0010\f\u001a\u00020\r*\u00028\u00002\u0006\u0010\u0004\u001a\u00020\u00052\u0006\u0010\u000e\u001a\u00020\nH&¢\u0006\u0002\u0010\u000f¨\u0006\u0010"}, d2 = {"Lkotlinx/android/parcel/Parceler;", "T", "", "create", "parcel", "Landroid/os/Parcel;", "(Landroid/os/Parcel;)Ljava/lang/Object;", "newArray", "", "size", "", "(I)[Ljava/lang/Object;", "write", "", "flags", "(Ljava/lang/Object;Landroid/os/Parcel;I)V", "kotlin-android-extensions-runtime"}, k = 1, mv = {1, 9, 0}, xi = 48)
+/* loaded from: classes3.dex */
+public interface Parceler<T> {
+
+    @Metadata(k = 3, mv = {1, 9, 0}, xi = 48)
+    /* loaded from: classes3.dex */
+    public static final class DefaultImpls {
+        public static <T> T[] newArray(Parceler<T> parceler, int i) {
+            throw new NotImplementedError("Generated by Android Extensions automatically");
+        }
+    }
+
+    T create(Parcel parcel);
+
+    T[] newArray(int size);
+
+    void write(T t2, Parcel parcel, int i);
+}

apk_decompiled/sources/kotlinx/android/parcel/Parcelize.java

@@ -0,0 +1,18 @@
+package kotlinx.android.parcel;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+import kotlin.Metadata;
+import kotlin.annotation.AnnotationRetention;
+import kotlin.annotation.AnnotationTarget;
+
+@Target({ElementType.TYPE})
+@Metadata(d1 = {"\u0000\n\n\u0002\u0018\u0002\n\u0002\u0010\u001b\n\u0000\b\u0087\u0002\u0018\u00002\u00020\u0001B\u0000¨\u0006\u0002"}, d2 = {"Lkotlinx/android/parcel/Parcelize;", "", "kotlin-android-extensions-runtime"}, k = 1, mv = {1, 9, 0}, xi = 48)
+@kotlin.annotation.Target(allowedTargets = {AnnotationTarget.CLASS})
+@Retention(RetentionPolicy.CLASS)
+@kotlin.annotation.Retention(AnnotationRetention.BINARY)
+/* loaded from: classes3.dex */
+public @interface Parcelize {
+}

apk_decompiled/sources/kotlinx/android/parcel/RawValue.java

@@ -0,0 +1,18 @@
+package kotlinx.android.parcel;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+import kotlin.Metadata;
+import kotlin.annotation.AnnotationRetention;
+import kotlin.annotation.AnnotationTarget;
+
+@Target({ElementType.TYPE_USE})
+@Metadata(d1 = {"\u0000\n\n\u0002\u0018\u0002\n\u0002\u0010\u001b\n\u0000\b\u0087\u0002\u0018\u00002\u00020\u0001B\u0000¨\u0006\u0002"}, d2 = {"Lkotlinx/android/parcel/RawValue;", "", "kotlin-android-extensions-runtime"}, k = 1, mv = {1, 9, 0}, xi = 48)
+@kotlin.annotation.Target(allowedTargets = {AnnotationTarget.TYPE})
+@Retention(RetentionPolicy.CLASS)
+@kotlin.annotation.Retention(AnnotationRetention.BINARY)
+/* loaded from: classes3.dex */
+public @interface RawValue {
+}

apk_decompiled/sources/kotlinx/android/parcel/TypeParceler.java

@@ -0,0 +1,34 @@
+package kotlinx.android.parcel;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+import kotlin.Metadata;
+import kotlin.annotation.AnnotationRetention;
+import kotlin.annotation.AnnotationTarget;
+import kotlin.annotation.Repeatable;
+import kotlin.jvm.internal.RepeatableContainer;
+import kotlinx.android.parcel.Parceler;
+
+@Target({ElementType.TYPE})
+@kotlin.annotation.Target(allowedTargets = {AnnotationTarget.CLASS, AnnotationTarget.PROPERTY})
+@Retention(RetentionPolicy.SOURCE)
+@kotlin.annotation.Retention(AnnotationRetention.SOURCE)
+@Metadata(d1 = {"\u0000\u0012\n\u0002\u0018\u0002\n\u0002\b\u0002\n\u0002\u0018\u0002\n\u0002\u0010\u001b\n\u0000\b\u0087\u0002\u0018\u0000*\u0004\b\u0000\u0010\u0001*\u0010\b\u0001\u0010\u0002*\n\u0012\u0006\b\u0000\u0012\u0002H\u00010\u00032\u00020\u0004B\u0000¨\u0006\u0005"}, d2 = {"Lkotlinx/android/parcel/TypeParceler;", "T", "P", "Lkotlinx/android/parcel/Parceler;", "", "kotlin-android-extensions-runtime"}, k = 1, mv = {1, 9, 0}, xi = 48)
+@Repeatable
+@java.lang.annotation.Repeatable(Container.class)
+/* loaded from: classes3.dex */
+public @interface TypeParceler<T, P extends Parceler<? super T>> {
+
+    @Target({ElementType.TYPE})
+    @Metadata(k = 3, mv = {1, 9, 0}, xi = 48)
+    @kotlin.annotation.Target(allowedTargets = {AnnotationTarget.CLASS, AnnotationTarget.PROPERTY})
+    @Retention(RetentionPolicy.SOURCE)
+    @kotlin.annotation.Retention(AnnotationRetention.SOURCE)
+    @RepeatableContainer
+    /* loaded from: classes3.dex */
+    public @interface Container {
+        TypeParceler[] value();
+    }
+}

apk_decompiled/sources/kotlinx/android/parcel/WriteWith.java

@@ -0,0 +1,19 @@
+package kotlinx.android.parcel;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+import kotlin.Metadata;
+import kotlin.annotation.AnnotationRetention;
+import kotlin.annotation.AnnotationTarget;
+import kotlinx.android.parcel.Parceler;
+
+@Target({ElementType.TYPE_USE})
+@Metadata(d1 = {"\u0000\u0010\n\u0002\u0018\u0002\n\u0000\n\u0002\u0018\u0002\n\u0002\u0010\u001b\n\u0000\b\u0087\u0002\u0018\u0000*\f\b\u0000\u0010\u0001*\u0006\u0012\u0002\b\u00030\u00022\u00020\u0003B\u0000¨\u0006\u0004"}, d2 = {"Lkotlinx/android/parcel/WriteWith;", "P", "Lkotlinx/android/parcel/Parceler;", "", "kotlin-android-extensions-runtime"}, k = 1, mv = {1, 9, 0}, xi = 48)
+@kotlin.annotation.Target(allowedTargets = {AnnotationTarget.TYPE})
+@Retention(RetentionPolicy.SOURCE)
+@kotlin.annotation.Retention(AnnotationRetention.SOURCE)
+/* loaded from: classes3.dex */
+public @interface WriteWith<P extends Parceler<?>> {
+}