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/text/MatchResult.java

@@ -0,0 +1,101 @@
+package kotlin.text;
+
+import java.util.List;
+import kotlin.Metadata;
+import kotlin.internal.InlineOnly;
+import kotlin.jvm.internal.Intrinsics;
+import kotlin.ranges.IntRange;
+
+@Metadata(d1 = {"\u0000.\n\u0002\u0018\u0002\n\u0002\u0010\u0000\n\u0000\n\u0002\u0018\u0002\n\u0002\b\u0003\n\u0002\u0010 \n\u0002\u0010\u000e\n\u0002\b\u0003\n\u0002\u0018\u0002\n\u0002\b\u0003\n\u0002\u0018\u0002\n\u0002\b\b\bf\u0018\u00002\u00020\u0001:\u0001\u0017J\n\u0010\u0016\u001a\u0004\u0018\u00010\u0000H&R\u0014\u0010\u0002\u001a\u00020\u00038VX\u0096\u0004¢\u0006\u0006\u001a\u0004\b\u0004\u0010\u0005R\u0018\u0010\u0006\u001a\b\u0012\u0004\u0012\u00020\b0\u0007X¦\u0004¢\u0006\u0006\u001a\u0004\b\t\u0010\nR\u0012\u0010\u000b\u001a\u00020\fX¦\u0004¢\u0006\u0006\u001a\u0004\b\r\u0010\u000eR\u0012\u0010\u000f\u001a\u00020\u0010X¦\u0004¢\u0006\u0006\u001a\u0004\b\u0011\u0010\u0012R\u0012\u0010\u0013\u001a\u00020\bX¦\u0004¢\u0006\u0006\u001a\u0004\b\u0014\u0010\u0015¨\u0006\u0018"}, d2 = {"Lkotlin/text/MatchResult;", "", "destructured", "Lkotlin/text/MatchResult$Destructured;", "getDestructured", "()Lkotlin/text/MatchResult$Destructured;", "groupValues", "", "", "getGroupValues", "()Ljava/util/List;", "groups", "Lkotlin/text/MatchGroupCollection;", "getGroups", "()Lkotlin/text/MatchGroupCollection;", "range", "Lkotlin/ranges/IntRange;", "getRange", "()Lkotlin/ranges/IntRange;", "value", "getValue", "()Ljava/lang/String;", "next", "Destructured", "kotlin-stdlib"}, k = 1, mv = {1, 9, 0}, xi = 48)
+/* loaded from: classes3.dex */
+public interface MatchResult {
+
+    @Metadata(k = 3, mv = {1, 9, 0}, xi = 48)
+    /* loaded from: classes3.dex */
+    public static final class DefaultImpls {
+        public static Destructured getDestructured(MatchResult matchResult) {
+            return new Destructured(matchResult);
+        }
+    }
+
+    @Metadata(d1 = {"\u0000 \n\u0002\u0018\u0002\n\u0002\u0010\u0000\n\u0000\n\u0002\u0018\u0002\n\u0002\b\u0004\n\u0002\u0010\u000e\n\u0002\b\n\n\u0002\u0010 \n\u0000\u0018\u00002\u00020\u0001B\u000f\b\u0000\u0012\u0006\u0010\u0002\u001a\u00020\u0003¢\u0006\u0002\u0010\u0004J\t\u0010\u0007\u001a\u00020\bH\u0087\nJ\t\u0010\t\u001a\u00020\bH\u0087\nJ\t\u0010\n\u001a\u00020\bH\u0087\nJ\t\u0010\u000b\u001a\u00020\bH\u0087\nJ\t\u0010\f\u001a\u00020\bH\u0087\nJ\t\u0010\r\u001a\u00020\bH\u0087\nJ\t\u0010\u000e\u001a\u00020\bH\u0087\nJ\t\u0010\u000f\u001a\u00020\bH\u0087\nJ\t\u0010\u0010\u001a\u00020\bH\u0087\nJ\t\u0010\u0011\u001a\u00020\bH\u0087\nJ\f\u0010\u0012\u001a\b\u0012\u0004\u0012\u00020\b0\u0013R\u0011\u0010\u0002\u001a\u00020\u0003¢\u0006\b\n\u0000\u001a\u0004\b\u0005\u0010\u0006¨\u0006\u0014"}, d2 = {"Lkotlin/text/MatchResult$Destructured;", "", "match", "Lkotlin/text/MatchResult;", "(Lkotlin/text/MatchResult;)V", "getMatch", "()Lkotlin/text/MatchResult;", "component1", "", "component10", "component2", "component3", "component4", "component5", "component6", "component7", "component8", "component9", "toList", "", "kotlin-stdlib"}, k = 1, mv = {1, 9, 0}, xi = 48)
+    /* loaded from: classes3.dex */
+    public static final class Destructured {
+        private final MatchResult match;
+
+        public Destructured(MatchResult match) {
+            Intrinsics.checkNotNullParameter(match, "match");
+            this.match = match;
+        }
+
+        @InlineOnly
+        private final String component1() {
+            return getMatch().getGroupValues().get(1);
+        }
+
+        @InlineOnly
+        private final String component10() {
+            return getMatch().getGroupValues().get(10);
+        }
+
+        @InlineOnly
+        private final String component2() {
+            return getMatch().getGroupValues().get(2);
+        }
+
+        @InlineOnly
+        private final String component3() {
+            return getMatch().getGroupValues().get(3);
+        }
+
+        @InlineOnly
+        private final String component4() {
+            return getMatch().getGroupValues().get(4);
+        }
+
+        @InlineOnly
+        private final String component5() {
+            return getMatch().getGroupValues().get(5);
+        }
+
+        @InlineOnly
+        private final String component6() {
+            return getMatch().getGroupValues().get(6);
+        }
+
+        @InlineOnly
+        private final String component7() {
+            return getMatch().getGroupValues().get(7);
+        }
+
+        @InlineOnly
+        private final String component8() {
+            return getMatch().getGroupValues().get(8);
+        }
+
+        @InlineOnly
+        private final String component9() {
+            return getMatch().getGroupValues().get(9);
+        }
+
+        public final MatchResult getMatch() {
+            return this.match;
+        }
+
+        public final List<String> toList() {
+            return this.match.getGroupValues().subList(1, this.match.getGroupValues().size());
+        }
+    }
+
+    Destructured getDestructured();
+
+    List<String> getGroupValues();
+
+    MatchGroupCollection getGroups();
+
+    IntRange getRange();
+
+    String getValue();
+
+    MatchResult next();
+}