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/ranges/ComparableRange.java

@@ -0,0 +1,62 @@
+package kotlin.ranges;
+
+import java.lang.Comparable;
+import kotlin.Metadata;
+import kotlin.jvm.internal.Intrinsics;
+import kotlin.ranges.ClosedRange;
+
+@Metadata(d1 = {"\u0000*\n\u0002\u0018\u0002\n\u0000\n\u0002\u0010\u000f\n\u0002\u0018\u0002\n\u0002\b\b\n\u0002\u0010\u000b\n\u0000\n\u0002\u0010\u0000\n\u0000\n\u0002\u0010\b\n\u0000\n\u0002\u0010\u000e\n\u0000\b\u0012\u0018\u0000*\u000e\b\u0000\u0010\u0001*\b\u0012\u0004\u0012\u0002H\u00010\u00022\b\u0012\u0004\u0012\u0002H\u00010\u0003B\u0015\u0012\u0006\u0010\u0004\u001a\u00028\u0000\u0012\u0006\u0010\u0005\u001a\u00028\u0000¢\u0006\u0002\u0010\u0006J\u0013\u0010\u000b\u001a\u00020\f2\b\u0010\r\u001a\u0004\u0018\u00010\u000eH\u0096\u0002J\b\u0010\u000f\u001a\u00020\u0010H\u0016J\b\u0010\u0011\u001a\u00020\u0012H\u0016R\u0016\u0010\u0005\u001a\u00028\u0000X\u0096\u0004¢\u0006\n\n\u0002\u0010\t\u001a\u0004\b\u0007\u0010\bR\u0016\u0010\u0004\u001a\u00028\u0000X\u0096\u0004¢\u0006\n\n\u0002\u0010\t\u001a\u0004\b\n\u0010\b¨\u0006\u0013"}, d2 = {"Lkotlin/ranges/ComparableRange;", "T", "", "Lkotlin/ranges/ClosedRange;", "start", "endInclusive", "(Ljava/lang/Comparable;Ljava/lang/Comparable;)V", "getEndInclusive", "()Ljava/lang/Comparable;", "Ljava/lang/Comparable;", "getStart", "equals", "", "other", "", "hashCode", "", "toString", "", "kotlin-stdlib"}, k = 1, mv = {1, 9, 0}, xi = 48)
+/* loaded from: classes3.dex */
+class ComparableRange<T extends Comparable<? super T>> implements ClosedRange<T> {
+    private final T endInclusive;
+    private final T start;
+
+    public ComparableRange(T start, T endInclusive) {
+        Intrinsics.checkNotNullParameter(start, "start");
+        Intrinsics.checkNotNullParameter(endInclusive, "endInclusive");
+        this.start = start;
+        this.endInclusive = endInclusive;
+    }
+
+    @Override // kotlin.ranges.ClosedRange, kotlin.ranges.OpenEndRange
+    public boolean contains(T t2) {
+        return ClosedRange.DefaultImpls.contains(this, t2);
+    }
+
+    public boolean equals(Object other) {
+        if (!(other instanceof ComparableRange)) {
+            return false;
+        }
+        if (isEmpty() && ((ComparableRange) other).isEmpty()) {
+            return true;
+        }
+        ComparableRange comparableRange = (ComparableRange) other;
+        return Intrinsics.areEqual(getStart(), comparableRange.getStart()) && Intrinsics.areEqual(getEndInclusive(), comparableRange.getEndInclusive());
+    }
+
+    @Override // kotlin.ranges.ClosedRange
+    public T getEndInclusive() {
+        return this.endInclusive;
+    }
+
+    @Override // kotlin.ranges.ClosedRange, kotlin.ranges.OpenEndRange
+    public T getStart() {
+        return this.start;
+    }
+
+    public int hashCode() {
+        if (isEmpty()) {
+            return -1;
+        }
+        return getEndInclusive().hashCode() + (getStart().hashCode() * 31);
+    }
+
+    @Override // kotlin.ranges.ClosedRange, kotlin.ranges.OpenEndRange
+    public boolean isEmpty() {
+        return ClosedRange.DefaultImpls.isEmpty(this);
+    }
+
+    public String toString() {
+        return getStart() + ".." + getEndInclusive();
+    }
+}