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/annotation/AnnotationTarget.java

@@ -0,0 +1,57 @@
+package kotlin.annotation;
+
+import kotlin.Metadata;
+import kotlin.SinceKotlin;
+import kotlin.enums.EnumEntries;
+import kotlin.enums.EnumEntriesKt;
+
+/* JADX WARN: Failed to restore enum class, 'enum' modifier and super class removed */
+/* JADX WARN: Unknown enum class pattern. Please report as an issue! */
+@Metadata(d1 = {"\u0000\f\n\u0002\u0018\u0002\n\u0002\u0010\u0010\n\u0002\b\u0011\b\u0086\u0081\u0002\u0018\u00002\b\u0012\u0004\u0012\u00020\u00000\u0001B\u0007\b\u0002¢\u0006\u0002\u0010\u0002j\u0002\b\u0003j\u0002\b\u0004j\u0002\b\u0005j\u0002\b\u0006j\u0002\b\u0007j\u0002\b\bj\u0002\b\tj\u0002\b\nj\u0002\b\u000bj\u0002\b\fj\u0002\b\rj\u0002\b\u000ej\u0002\b\u000fj\u0002\b\u0010j\u0002\b\u0011¨\u0006\u0012"}, d2 = {"Lkotlin/annotation/AnnotationTarget;", "", "(Ljava/lang/String;I)V", "CLASS", "ANNOTATION_CLASS", "TYPE_PARAMETER", "PROPERTY", "FIELD", "LOCAL_VARIABLE", "VALUE_PARAMETER", "CONSTRUCTOR", "FUNCTION", "PROPERTY_GETTER", "PROPERTY_SETTER", "TYPE", "EXPRESSION", "FILE", "TYPEALIAS", "kotlin-stdlib"}, k = 1, mv = {1, 9, 0}, xi = 48)
+/* loaded from: classes3.dex */
+public final class AnnotationTarget {
+    private static final /* synthetic */ EnumEntries $ENTRIES;
+    private static final /* synthetic */ AnnotationTarget[] $VALUES;
+    public static final AnnotationTarget CLASS = new AnnotationTarget("CLASS", 0);
+    public static final AnnotationTarget ANNOTATION_CLASS = new AnnotationTarget("ANNOTATION_CLASS", 1);
+    public static final AnnotationTarget TYPE_PARAMETER = new AnnotationTarget("TYPE_PARAMETER", 2);
+    public static final AnnotationTarget PROPERTY = new AnnotationTarget("PROPERTY", 3);
+    public static final AnnotationTarget FIELD = new AnnotationTarget("FIELD", 4);
+    public static final AnnotationTarget LOCAL_VARIABLE = new AnnotationTarget("LOCAL_VARIABLE", 5);
+    public static final AnnotationTarget VALUE_PARAMETER = new AnnotationTarget("VALUE_PARAMETER", 6);
+    public static final AnnotationTarget CONSTRUCTOR = new AnnotationTarget("CONSTRUCTOR", 7);
+    public static final AnnotationTarget FUNCTION = new AnnotationTarget("FUNCTION", 8);
+    public static final AnnotationTarget PROPERTY_GETTER = new AnnotationTarget("PROPERTY_GETTER", 9);
+    public static final AnnotationTarget PROPERTY_SETTER = new AnnotationTarget("PROPERTY_SETTER", 10);
+    public static final AnnotationTarget TYPE = new AnnotationTarget("TYPE", 11);
+    public static final AnnotationTarget EXPRESSION = new AnnotationTarget("EXPRESSION", 12);
+    public static final AnnotationTarget FILE = new AnnotationTarget("FILE", 13);
+
+    @SinceKotlin(version = "1.1")
+    public static final AnnotationTarget TYPEALIAS = new AnnotationTarget("TYPEALIAS", 14);
+
+    private static final /* synthetic */ AnnotationTarget[] $values() {
+        return new AnnotationTarget[]{CLASS, ANNOTATION_CLASS, TYPE_PARAMETER, PROPERTY, FIELD, LOCAL_VARIABLE, VALUE_PARAMETER, CONSTRUCTOR, FUNCTION, PROPERTY_GETTER, PROPERTY_SETTER, TYPE, EXPRESSION, FILE, TYPEALIAS};
+    }
+
+    static {
+        AnnotationTarget[] $values = $values();
+        $VALUES = $values;
+        $ENTRIES = EnumEntriesKt.enumEntries($values);
+    }
+
+    private AnnotationTarget(String str, int i) {
+    }
+
+    public static EnumEntries<AnnotationTarget> getEntries() {
+        return $ENTRIES;
+    }
+
+    public static AnnotationTarget valueOf(String str) {
+        return (AnnotationTarget) Enum.valueOf(AnnotationTarget.class, str);
+    }
+
+    public static AnnotationTarget[] values() {
+        return (AnnotationTarget[]) $VALUES.clone();
+    }
+}