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/OpenEndDoubleRange.java

@@ -0,0 +1,66 @@
+package kotlin.ranges;
+
+import kotlin.Metadata;
+
+@Metadata(d1 = {"\u0000,\n\u0002\u0018\u0002\n\u0002\u0018\u0002\n\u0002\u0010\u0006\n\u0002\b\t\n\u0002\u0010\u000b\n\u0002\b\u0003\n\u0002\u0010\u0000\n\u0000\n\u0002\u0010\b\n\u0002\b\u0005\n\u0002\u0010\u000e\n\u0000\b\u0002\u0018\u00002\b\u0012\u0004\u0012\u00020\u00020\u0001B\u0015\u0012\u0006\u0010\u0003\u001a\u00020\u0002\u0012\u0006\u0010\u0004\u001a\u00020\u0002¢\u0006\u0002\u0010\u0005J\u0011\u0010\u000b\u001a\u00020\f2\u0006\u0010\r\u001a\u00020\u0002H\u0096\u0002J\u0013\u0010\u000e\u001a\u00020\f2\b\u0010\u000f\u001a\u0004\u0018\u00010\u0010H\u0096\u0002J\b\u0010\u0011\u001a\u00020\u0012H\u0016J\b\u0010\u0013\u001a\u00020\fH\u0016J\u0018\u0010\u0014\u001a\u00020\f2\u0006\u0010\u0015\u001a\u00020\u00022\u0006\u0010\u0016\u001a\u00020\u0002H\u0002J\b\u0010\u0017\u001a\u00020\u0018H\u0016R\u000e\u0010\u0006\u001a\u00020\u0002X\u0082\u0004¢\u0006\u0002\n\u0000R\u000e\u0010\u0007\u001a\u00020\u0002X\u0082\u0004¢\u0006\u0002\n\u0000R\u0014\u0010\u0004\u001a\u00020\u00028VX\u0096\u0004¢\u0006\u0006\u001a\u0004\b\b\u0010\tR\u0014\u0010\u0003\u001a\u00020\u00028VX\u0096\u0004¢\u0006\u0006\u001a\u0004\b\n\u0010\t¨\u0006\u0019"}, d2 = {"Lkotlin/ranges/OpenEndDoubleRange;", "Lkotlin/ranges/OpenEndRange;", "", "start", "endExclusive", "(DD)V", "_endExclusive", "_start", "getEndExclusive", "()Ljava/lang/Double;", "getStart", "contains", "", "value", "equals", "other", "", "hashCode", "", "isEmpty", "lessThanOrEquals", "a", "b", "toString", "", "kotlin-stdlib"}, k = 1, mv = {1, 9, 0}, xi = 48)
+/* loaded from: classes3.dex */
+final class OpenEndDoubleRange implements OpenEndRange<Double> {
+    private final double _endExclusive;
+    private final double _start;
+
+    public OpenEndDoubleRange(double d4, double d5) {
+        this._start = d4;
+        this._endExclusive = d5;
+    }
+
+    private final boolean lessThanOrEquals(double a2, double b4) {
+        return a2 <= b4;
+    }
+
+    /* JADX WARN: Multi-variable type inference failed */
+    @Override // kotlin.ranges.OpenEndRange
+    public /* bridge */ /* synthetic */ boolean contains(Comparable comparable) {
+        return contains(((Number) comparable).doubleValue());
+    }
+
+    public boolean equals(Object other) {
+        if (!(other instanceof OpenEndDoubleRange)) {
+            return false;
+        }
+        if (isEmpty() && ((OpenEndDoubleRange) other).isEmpty()) {
+            return true;
+        }
+        OpenEndDoubleRange openEndDoubleRange = (OpenEndDoubleRange) other;
+        return this._start == openEndDoubleRange._start && this._endExclusive == openEndDoubleRange._endExclusive;
+    }
+
+    public int hashCode() {
+        if (isEmpty()) {
+            return -1;
+        }
+        return Double.hashCode(this._endExclusive) + (Double.hashCode(this._start) * 31);
+    }
+
+    @Override // kotlin.ranges.OpenEndRange
+    public boolean isEmpty() {
+        return this._start >= this._endExclusive;
+    }
+
+    public String toString() {
+        return this._start + "..<" + this._endExclusive;
+    }
+
+    public boolean contains(double value) {
+        return value >= this._start && value < this._endExclusive;
+    }
+
+    @Override // kotlin.ranges.OpenEndRange
+    public Double getEndExclusive() {
+        return Double.valueOf(this._endExclusive);
+    }
+
+    @Override // kotlin.ranges.OpenEndRange
+    public Double getStart() {
+        return Double.valueOf(this._start);
+    }
+}