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/m/C0451a0.java

@@ -0,0 +1,74 @@
+package m;
+
+import android.content.Context;
+import android.graphics.RectF;
+import android.widget.TextView;
+import androidx.appcompat.widget.AppCompatEditText;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.concurrent.ConcurrentHashMap;
+
+/* renamed from: m.a0, reason: case insensitive filesystem */
+/* loaded from: classes.dex */
+public final class C0451a0 {
+
+    /* renamed from: a, reason: collision with root package name */
+    public int f7647a = 0;
+
+    /* renamed from: b, reason: collision with root package name */
+    public float f7648b = -1.0f;
+
+    /* renamed from: c, reason: collision with root package name */
+    public float f7649c = -1.0f;
+
+    /* renamed from: d, reason: collision with root package name */
+    public float f7650d = -1.0f;
+
+    /* renamed from: e, reason: collision with root package name */
+    public int[] f7651e = new int[0];
+
+    /* renamed from: f, reason: collision with root package name */
+    public boolean f7652f = false;
+
+    /* renamed from: g, reason: collision with root package name */
+    public final TextView f7653g;
+    public final Context h;
+
+    static {
+        new RectF();
+        new ConcurrentHashMap();
+    }
+
+    public C0451a0(TextView textView) {
+        this.f7653g = textView;
+        this.h = textView.getContext();
+        new Y();
+    }
+
+    public static int[] a(int[] iArr) {
+        int length = iArr.length;
+        if (length != 0) {
+            Arrays.sort(iArr);
+            ArrayList arrayList = new ArrayList();
+            for (int i : iArr) {
+                if (i > 0 && Collections.binarySearch(arrayList, Integer.valueOf(i)) < 0) {
+                    arrayList.add(Integer.valueOf(i));
+                }
+            }
+            if (length != arrayList.size()) {
+                int size = arrayList.size();
+                int[] iArr2 = new int[size];
+                for (int i4 = 0; i4 < size; i4++) {
+                    iArr2[i4] = ((Integer) arrayList.get(i4)).intValue();
+                }
+                return iArr2;
+            }
+        }
+        return iArr;
+    }
+
+    public final boolean b() {
+        return !(this.f7653g instanceof AppCompatEditText);
+    }
+}