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/kotlin/reflect/jvm/internal/KMutableProperty2Impl.java

@@ -0,0 +1,101 @@
+package kotlin.reflect.jvm.internal;
+
+import com.google.android.gms.measurement.api.AppMeasurementSdk;
+import kotlin.Lazy;
+import kotlin.LazyKt;
+import kotlin.LazyThreadSafetyMode;
+import kotlin.Metadata;
+import kotlin.Unit;
+import kotlin.jvm.functions.Function0;
+import kotlin.jvm.internal.Intrinsics;
+import kotlin.reflect.KMutableProperty2;
+import kotlin.reflect.jvm.internal.KMutableProperty2Impl;
+import kotlin.reflect.jvm.internal.KPropertyImpl;
+import kotlin.reflect.jvm.internal.impl.descriptors.PropertyDescriptor;
+
+@Metadata(d1 = {"\u0000<\n\u0002\u0018\u0002\n\u0002\b\u0003\n\u0002\u0018\u0002\n\u0002\u0018\u0002\n\u0000\n\u0002\u0018\u0002\n\u0000\n\u0002\u0010\u000e\n\u0002\b\u0003\n\u0002\u0018\u0002\n\u0002\b\u0002\n\u0002\u0018\u0002\n\u0002\u0018\u0002\n\u0002\b\u0004\n\u0002\u0010\u0002\n\u0002\b\u0006\b\u0000\u0018\u0000*\u0004\b\u0000\u0010\u0001*\u0004\b\u0001\u0010\u0002*\u0004\b\u0002\u0010\u00032\u0014\u0012\u0004\u0012\u0002H\u0001\u0012\u0004\u0012\u0002H\u0002\u0012\u0004\u0012\u0002H\u00030\u00042\u0014\u0012\u0004\u0012\u0002H\u0001\u0012\u0004\u0012\u0002H\u0002\u0012\u0004\u0012\u0002H\u00030\u0005:\u0001\u001bB\u001f\b\u0016\u0012\u0006\u0010\u0006\u001a\u00020\u0007\u0012\u0006\u0010\b\u001a\u00020\t\u0012\u0006\u0010\n\u001a\u00020\t¢\u0006\u0002\u0010\u000bB\u0017\b\u0016\u0012\u0006\u0010\u0006\u001a\u00020\u0007\u0012\u0006\u0010\f\u001a\u00020\r¢\u0006\u0002\u0010\u000eJ%\u0010\u0015\u001a\u00020\u00162\u0006\u0010\u0017\u001a\u00028\u00002\u0006\u0010\u0018\u001a\u00028\u00012\u0006\u0010\u0019\u001a\u00028\u0002H\u0016¢\u0006\u0002\u0010\u001aR&\u0010\u000f\u001a\u001a\u0012\u0016\u0012\u0014\u0012\u0004\u0012\u00028\u0000\u0012\u0004\u0012\u00028\u0001\u0012\u0004\u0012\u00028\u00020\u00110\u0010X\u0082\u0004¢\u0006\u0002\n\u0000R&\u0010\u0012\u001a\u0014\u0012\u0004\u0012\u00028\u0000\u0012\u0004\u0012\u00028\u0001\u0012\u0004\u0012\u00028\u00020\u00118VX\u0096\u0004¢\u0006\u0006\u001a\u0004\b\u0013\u0010\u0014¨\u0006\u001c"}, d2 = {"Lkotlin/reflect/jvm/internal/KMutableProperty2Impl;", "D", "E", "V", "Lkotlin/reflect/jvm/internal/KProperty2Impl;", "Lkotlin/reflect/KMutableProperty2;", "container", "Lkotlin/reflect/jvm/internal/KDeclarationContainerImpl;", AppMeasurementSdk.ConditionalUserProperty.NAME, "", "signature", "(Lkotlin/reflect/jvm/internal/KDeclarationContainerImpl;Ljava/lang/String;Ljava/lang/String;)V", "descriptor", "Lkotlin/reflect/jvm/internal/impl/descriptors/PropertyDescriptor;", "(Lkotlin/reflect/jvm/internal/KDeclarationContainerImpl;Lorg/jetbrains/kotlin/descriptors/PropertyDescriptor;)V", "_setter", "Lkotlin/Lazy;", "Lkotlin/reflect/jvm/internal/KMutableProperty2Impl$Setter;", "setter", "getSetter", "()Lkotlin/reflect/jvm/internal/KMutableProperty2Impl$Setter;", "set", "", "receiver1", "receiver2", "value", "(Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;)V", "Setter", "kotlin-reflection"}, k = 1, mv = {1, 9, 0}, xi = 48)
+/* loaded from: classes3.dex */
+public final class KMutableProperty2Impl<D, E, V> extends KProperty2Impl<D, E, V> implements KMutableProperty2<D, E, V> {
+    private final Lazy<Setter<D, E, V>> _setter;
+
+    @Metadata(d1 = {"\u0000\"\n\u0002\u0018\u0002\n\u0002\b\u0003\n\u0002\u0018\u0002\n\u0002\u0018\u0002\n\u0000\n\u0002\u0018\u0002\n\u0002\b\u0004\n\u0002\u0010\u0002\n\u0002\b\u0005\u0018\u0000*\u0004\b\u0003\u0010\u0001*\u0004\b\u0004\u0010\u0002*\u0004\b\u0005\u0010\u00032\b\u0012\u0004\u0012\u0002H\u00030\u00042\u0014\u0012\u0004\u0012\u0002H\u0001\u0012\u0004\u0012\u0002H\u0002\u0012\u0004\u0012\u0002H\u00030\u0005B\u001f\u0012\u0018\u0010\u0006\u001a\u0014\u0012\u0004\u0012\u00028\u0003\u0012\u0004\u0012\u00028\u0004\u0012\u0004\u0012\u00028\u00050\u0007¢\u0006\u0002\u0010\bJ&\u0010\u000b\u001a\u00020\f2\u0006\u0010\r\u001a\u00028\u00032\u0006\u0010\u000e\u001a\u00028\u00042\u0006\u0010\u000f\u001a\u00028\u0005H\u0096\u0002¢\u0006\u0002\u0010\u0010R&\u0010\u0006\u001a\u0014\u0012\u0004\u0012\u00028\u0003\u0012\u0004\u0012\u00028\u0004\u0012\u0004\u0012\u00028\u00050\u0007X\u0096\u0004¢\u0006\b\n\u0000\u001a\u0004\b\t\u0010\n¨\u0006\u0011"}, d2 = {"Lkotlin/reflect/jvm/internal/KMutableProperty2Impl$Setter;", "D", "E", "V", "Lkotlin/reflect/jvm/internal/KPropertyImpl$Setter;", "Lkotlin/reflect/KMutableProperty2$Setter;", "property", "Lkotlin/reflect/jvm/internal/KMutableProperty2Impl;", "(Lkotlin/reflect/jvm/internal/KMutableProperty2Impl;)V", "getProperty", "()Lkotlin/reflect/jvm/internal/KMutableProperty2Impl;", "invoke", "", "receiver1", "receiver2", "value", "(Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;)V", "kotlin-reflection"}, k = 1, mv = {1, 9, 0}, xi = 48)
+    /* loaded from: classes3.dex */
+    public static final class Setter<D, E, V> extends KPropertyImpl.Setter<V> implements KMutableProperty2.Setter<D, E, V> {
+        private final KMutableProperty2Impl<D, E, V> property;
+
+        public Setter(KMutableProperty2Impl<D, E, V> property) {
+            Intrinsics.checkNotNullParameter(property, "property");
+            this.property = property;
+        }
+
+        /* JADX WARN: Multi-variable type inference failed */
+        @Override // kotlin.jvm.functions.Function3
+        public /* bridge */ /* synthetic */ Unit invoke(Object obj, Object obj2, Object obj3) {
+            invoke2((Setter<D, E, V>) obj, obj2, obj3);
+            return Unit.INSTANCE;
+        }
+
+        @Override // kotlin.reflect.jvm.internal.KPropertyImpl.Accessor, kotlin.reflect.KProperty.Accessor
+        public KMutableProperty2Impl<D, E, V> getProperty() {
+            return this.property;
+        }
+
+        /* renamed from: invoke, reason: avoid collision after fix types in other method */
+        public void invoke2(D receiver1, E receiver2, V value) {
+            getProperty().set(receiver1, receiver2, value);
+        }
+    }
+
+    /* JADX WARN: 'super' call moved to the top of the method (can break code semantics) */
+    public KMutableProperty2Impl(KDeclarationContainerImpl container, String name, String signature) {
+        super(container, name, signature);
+        Intrinsics.checkNotNullParameter(container, "container");
+        Intrinsics.checkNotNullParameter(name, "name");
+        Intrinsics.checkNotNullParameter(signature, "signature");
+        this._setter = LazyKt.lazy(LazyThreadSafetyMode.PUBLICATION, (Function0) new Function0<Setter<D, E, V>>(this) { // from class: kotlin.reflect.jvm.internal.KMutableProperty2Impl$_setter$1
+            final /* synthetic */ KMutableProperty2Impl<D, E, V> this$0;
+
+            /* JADX WARN: 'super' call moved to the top of the method (can break code semantics) */
+            {
+                super(0);
+                this.this$0 = this;
+            }
+
+            @Override // kotlin.jvm.functions.Function0
+            public final KMutableProperty2Impl.Setter<D, E, V> invoke() {
+                return new KMutableProperty2Impl.Setter<>(this.this$0);
+            }
+        });
+    }
+
+    @Override // kotlin.reflect.KMutableProperty2
+    public void set(D receiver1, E receiver2, V value) {
+        getSetter().call(receiver1, receiver2, value);
+    }
+
+    /* JADX WARN: 'super' call moved to the top of the method (can break code semantics) */
+    public KMutableProperty2Impl(KDeclarationContainerImpl container, PropertyDescriptor descriptor) {
+        super(container, descriptor);
+        Intrinsics.checkNotNullParameter(container, "container");
+        Intrinsics.checkNotNullParameter(descriptor, "descriptor");
+        this._setter = LazyKt.lazy(LazyThreadSafetyMode.PUBLICATION, (Function0) new Function0<Setter<D, E, V>>(this) { // from class: kotlin.reflect.jvm.internal.KMutableProperty2Impl$_setter$1
+            final /* synthetic */ KMutableProperty2Impl<D, E, V> this$0;
+
+            /* JADX WARN: 'super' call moved to the top of the method (can break code semantics) */
+            {
+                super(0);
+                this.this$0 = this;
+            }
+
+            @Override // kotlin.jvm.functions.Function0
+            public final KMutableProperty2Impl.Setter<D, E, V> invoke() {
+                return new KMutableProperty2Impl.Setter<>(this.this$0);
+            }
+        });
+    }
+
+    @Override // kotlin.reflect.KMutableProperty2, kotlin.reflect.KMutableProperty
+    public Setter<D, E, V> getSetter() {
+        return this._setter.getValue();
+    }
+}