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/W2/a.java

@@ -0,0 +1,123 @@
+package W2;
+
+import Q2.l;
+import java.sql.Time;
+import java.sql.Timestamp;
+import java.text.ParseException;
+import java.text.SimpleDateFormat;
+import java.util.Date;
+
+/* loaded from: classes3.dex */
+public final class a extends l {
+
+    /* renamed from: c, reason: collision with root package name */
+    public static final T2.a f1966c = new T2.a(4);
+
+    /* renamed from: d, reason: collision with root package name */
+    public static final T2.a f1967d = new T2.a(5);
+
+    /* renamed from: e, reason: collision with root package name */
+    public static final T2.a f1968e = new T2.a(6);
+
+    /* renamed from: a, reason: collision with root package name */
+    public final /* synthetic */ int f1969a;
+
+    /* renamed from: b, reason: collision with root package name */
+    public final Object f1970b;
+
+    public a(int i) {
+        this.f1969a = i;
+        switch (i) {
+            case 1:
+                this.f1970b = new SimpleDateFormat("hh:mm:ss a");
+                return;
+            default:
+                this.f1970b = new SimpleDateFormat("MMM d, yyyy");
+                return;
+        }
+    }
+
+    @Override // Q2.l
+    public final Object a(Y2.a aVar) {
+        Date parse;
+        Time time;
+        switch (this.f1969a) {
+            case 0:
+                if (aVar.o0() == 9) {
+                    aVar.k0();
+                    return null;
+                }
+                String m02 = aVar.m0();
+                try {
+                    synchronized (this) {
+                        parse = ((SimpleDateFormat) this.f1970b).parse(m02);
+                    }
+                    return new java.sql.Date(parse.getTime());
+                } catch (ParseException e4) {
+                    StringBuilder p = com.google.android.gms.measurement.internal.a.p("Failed parsing '", m02, "' as SQL Date; at path ");
+                    p.append(aVar.a0(true));
+                    throw new RuntimeException(p.toString(), e4);
+                }
+            case 1:
+                if (aVar.o0() == 9) {
+                    aVar.k0();
+                    return null;
+                }
+                String m03 = aVar.m0();
+                try {
+                    synchronized (this) {
+                        time = new Time(((SimpleDateFormat) this.f1970b).parse(m03).getTime());
+                    }
+                    return time;
+                } catch (ParseException e5) {
+                    StringBuilder p3 = com.google.android.gms.measurement.internal.a.p("Failed parsing '", m03, "' as SQL Time; at path ");
+                    p3.append(aVar.a0(true));
+                    throw new RuntimeException(p3.toString(), e5);
+                }
+            default:
+                Date date = (Date) ((l) this.f1970b).a(aVar);
+                if (date != null) {
+                    return new Timestamp(date.getTime());
+                }
+                return null;
+        }
+    }
+
+    @Override // Q2.l
+    public final void b(Y2.b bVar, Object obj) {
+        String format;
+        String format2;
+        switch (this.f1969a) {
+            case 0:
+                java.sql.Date date = (java.sql.Date) obj;
+                if (date == null) {
+                    bVar.b0();
+                    return;
+                }
+                synchronized (this) {
+                    format = ((SimpleDateFormat) this.f1970b).format((Date) date);
+                }
+                bVar.h0(format);
+                return;
+            case 1:
+                Time time = (Time) obj;
+                if (time == null) {
+                    bVar.b0();
+                    return;
+                }
+                synchronized (this) {
+                    format2 = ((SimpleDateFormat) this.f1970b).format((Date) time);
+                }
+                bVar.h0(format2);
+                return;
+            default:
+                ((l) this.f1970b).b(bVar, (Timestamp) obj);
+                return;
+        }
+    }
+
+    public a(l lVar) {
+        this.f1969a = 2;
+        this.f1970b = lVar;
+    }
+}

apk_decompiled/sources/W2/b.java

@@ -0,0 +1,43 @@
+package W2;
+
+import T2.e;
+import java.sql.Date;
+import java.sql.Timestamp;
+
+/* loaded from: classes3.dex */
+public abstract class b {
+
+    /* renamed from: a, reason: collision with root package name */
+    public static final boolean f1971a;
+
+    /* renamed from: b, reason: collision with root package name */
+    public static final T2.a f1972b;
+
+    /* renamed from: c, reason: collision with root package name */
+    public static final T2.a f1973c;
+
+    /* renamed from: d, reason: collision with root package name */
+    public static final T2.a f1974d;
+
+    static {
+        boolean z3;
+        try {
+            Class.forName("java.sql.Date");
+            z3 = true;
+        } catch (ClassNotFoundException unused) {
+            z3 = false;
+        }
+        f1971a = z3;
+        if (!z3) {
+            f1972b = null;
+            f1973c = null;
+            f1974d = null;
+        } else {
+            new e(Date.class);
+            new e(Timestamp.class);
+            f1972b = a.f1966c;
+            f1973c = a.f1967d;
+            f1974d = a.f1968e;
+        }
+    }
+}