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/i2/AbstractC0396a.java

@@ -0,0 +1,40 @@
+package i2;
+
+import android.view.animation.DecelerateInterpolator;
+import android.view.animation.LinearInterpolator;
+import j0.AbstractInterpolatorC0400b;
+import j0.C0399a;
+
+/* renamed from: i2.a, reason: case insensitive filesystem */
+/* loaded from: classes3.dex */
+public abstract class AbstractC0396a {
+
+    /* renamed from: a, reason: collision with root package name */
+    public static final LinearInterpolator f6815a = new LinearInterpolator();
+
+    /* renamed from: b, reason: collision with root package name */
+    public static final C0399a f6816b = new C0399a(1);
+
+    /* renamed from: c, reason: collision with root package name */
+    public static final C0399a f6817c = new C0399a(0);
+
+    /* renamed from: d, reason: collision with root package name */
+    public static final C0399a f6818d = new AbstractInterpolatorC0400b(C0399a.f6902e);
+
+    /* JADX WARN: Type inference failed for: r0v3, types: [j0.a, j0.b] */
+    static {
+        new DecelerateInterpolator();
+    }
+
+    public static float a(float f2, float f4, float f5) {
+        return com.google.android.gms.measurement.internal.a.a(f4, f2, f5, f2);
+    }
+
+    public static float b(float f2, float f4, float f5, float f6, float f7) {
+        return f7 <= f5 ? f2 : f7 >= f6 ? f4 : a(f2, f4, (f7 - f5) / (f6 - f5));
+    }
+
+    public static int c(float f2, int i, int i4) {
+        return Math.round(f2 * (i4 - i)) + i;
+    }
+}

apk_decompiled/sources/i2/C0397b.java

@@ -0,0 +1,97 @@
+package i2;
+
+import android.animation.Animator;
+import android.animation.AnimatorInflater;
+import android.animation.AnimatorSet;
+import android.animation.ObjectAnimator;
+import android.animation.TimeInterpolator;
+import android.content.Context;
+import android.util.Log;
+import android.view.animation.AccelerateDecelerateInterpolator;
+import android.view.animation.AccelerateInterpolator;
+import android.view.animation.DecelerateInterpolator;
+import java.util.ArrayList;
+import s.j;
+
+/* renamed from: i2.b, reason: case insensitive filesystem */
+/* loaded from: classes3.dex */
+public final class C0397b {
+
+    /* renamed from: a, reason: collision with root package name */
+    public final j f6819a = new j(0);
+
+    /* renamed from: b, reason: collision with root package name */
+    public final j f6820b = new j(0);
+
+    public static C0397b a(Context context, int i) {
+        try {
+            Animator loadAnimator = AnimatorInflater.loadAnimator(context, i);
+            if (loadAnimator instanceof AnimatorSet) {
+                return b(((AnimatorSet) loadAnimator).getChildAnimations());
+            }
+            if (loadAnimator == null) {
+                return null;
+            }
+            ArrayList arrayList = new ArrayList();
+            arrayList.add(loadAnimator);
+            return b(arrayList);
+        } catch (Exception e4) {
+            Log.w("MotionSpec", "Can't load animation resource ID #0x" + Integer.toHexString(i), e4);
+            return null;
+        }
+    }
+
+    /* JADX WARN: Multi-variable type inference failed */
+    /* JADX WARN: Type inference failed for: r6v1, types: [java.lang.Object, i2.c] */
+    public static C0397b b(ArrayList arrayList) {
+        C0397b c0397b = new C0397b();
+        int size = arrayList.size();
+        for (int i = 0; i < size; i++) {
+            Animator animator = (Animator) arrayList.get(i);
+            if (!(animator instanceof ObjectAnimator)) {
+                throw new IllegalArgumentException("Animator must be an ObjectAnimator: " + animator);
+            }
+            ObjectAnimator objectAnimator = (ObjectAnimator) animator;
+            c0397b.f6820b.put(objectAnimator.getPropertyName(), objectAnimator.getValues());
+            String propertyName = objectAnimator.getPropertyName();
+            long startDelay = objectAnimator.getStartDelay();
+            long duration = objectAnimator.getDuration();
+            TimeInterpolator interpolator = objectAnimator.getInterpolator();
+            if ((interpolator instanceof AccelerateDecelerateInterpolator) || interpolator == null) {
+                interpolator = AbstractC0396a.f6816b;
+            } else if (interpolator instanceof AccelerateInterpolator) {
+                interpolator = AbstractC0396a.f6817c;
+            } else if (interpolator instanceof DecelerateInterpolator) {
+                interpolator = AbstractC0396a.f6818d;
+            }
+            ?? obj = new Object();
+            obj.f6824d = 0;
+            obj.f6825e = 1;
+            obj.f6821a = startDelay;
+            obj.f6822b = duration;
+            obj.f6823c = interpolator;
+            obj.f6824d = objectAnimator.getRepeatCount();
+            obj.f6825e = objectAnimator.getRepeatMode();
+            c0397b.f6819a.put(propertyName, obj);
+        }
+        return c0397b;
+    }
+
+    public final boolean equals(Object obj) {
+        if (this == obj) {
+            return true;
+        }
+        if (obj instanceof C0397b) {
+            return this.f6819a.equals(((C0397b) obj).f6819a);
+        }
+        return false;
+    }
+
+    public final int hashCode() {
+        return this.f6819a.hashCode();
+    }
+
+    public final String toString() {
+        return "\n" + C0397b.class.getName() + '{' + Integer.toHexString(System.identityHashCode(this)) + " timings: " + this.f6819a + "}\n";
+    }
+}

apk_decompiled/sources/i2/C0398c.java

@@ -0,0 +1,65 @@
+package i2;
+
+import android.animation.TimeInterpolator;
+
+/* renamed from: i2.c, reason: case insensitive filesystem */
+/* loaded from: classes3.dex */
+public final class C0398c {
+
+    /* renamed from: a, reason: collision with root package name */
+    public long f6821a;
+
+    /* renamed from: b, reason: collision with root package name */
+    public long f6822b;
+
+    /* renamed from: c, reason: collision with root package name */
+    public TimeInterpolator f6823c;
+
+    /* renamed from: d, reason: collision with root package name */
+    public int f6824d;
+
+    /* renamed from: e, reason: collision with root package name */
+    public int f6825e;
+
+    public final TimeInterpolator a() {
+        TimeInterpolator timeInterpolator = this.f6823c;
+        return timeInterpolator != null ? timeInterpolator : AbstractC0396a.f6816b;
+    }
+
+    public final boolean equals(Object obj) {
+        if (this == obj) {
+            return true;
+        }
+        if (!(obj instanceof C0398c)) {
+            return false;
+        }
+        C0398c c0398c = (C0398c) obj;
+        if (this.f6821a == c0398c.f6821a && this.f6822b == c0398c.f6822b && this.f6824d == c0398c.f6824d && this.f6825e == c0398c.f6825e) {
+            return a().getClass().equals(c0398c.a().getClass());
+        }
+        return false;
+    }
+
+    public final int hashCode() {
+        long j4 = this.f6821a;
+        long j5 = this.f6822b;
+        return ((((a().getClass().hashCode() + (((((int) (j4 ^ (j4 >>> 32))) * 31) + ((int) ((j5 >>> 32) ^ j5))) * 31)) * 31) + this.f6824d) * 31) + this.f6825e;
+    }
+
+    public final String toString() {
+        StringBuilder sb = new StringBuilder("\n");
+        sb.append(C0398c.class.getName());
+        sb.append('{');
+        sb.append(Integer.toHexString(System.identityHashCode(this)));
+        sb.append(" delay: ");
+        sb.append(this.f6821a);
+        sb.append(" duration: ");
+        sb.append(this.f6822b);
+        sb.append(" interpolator: ");
+        sb.append(a().getClass());
+        sb.append(" repeatCount: ");
+        sb.append(this.f6824d);
+        sb.append(" repeatMode: ");
+        return com.google.android.gms.measurement.internal.a.m(sb, this.f6825e, "}\n");
+    }
+}