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/retrofit2/DefaultCallAdapterFactory.java

@@ -0,0 +1,158 @@
+package retrofit2;
+
+import e3.I;
+import java.io.IOException;
+import java.lang.annotation.Annotation;
+import java.lang.reflect.ParameterizedType;
+import java.lang.reflect.Type;
+import java.util.Objects;
+import java.util.concurrent.Executor;
+import r3.K;
+import retrofit2.CallAdapter;
+
+/* JADX INFO: Access modifiers changed from: package-private */
+/* loaded from: classes3.dex */
+public final class DefaultCallAdapterFactory extends CallAdapter.Factory {
+    private final Executor callbackExecutor;
+
+    /* renamed from: retrofit2.DefaultCallAdapterFactory$1 */
+    /* loaded from: classes3.dex */
+    public class AnonymousClass1 implements CallAdapter<Object, Call<?>> {
+        final /* synthetic */ Executor val$executor;
+        final /* synthetic */ Type val$responseType;
+
+        public AnonymousClass1(Type type, Executor executor) {
+            r2 = type;
+            r3 = executor;
+        }
+
+        @Override // retrofit2.CallAdapter
+        public Type responseType() {
+            return r2;
+        }
+
+        @Override // retrofit2.CallAdapter
+        public Call<?> adapt(Call<Object> call) {
+            Executor executor = r3;
+            return executor == null ? call : new ExecutorCallbackCall(executor, call);
+        }
+    }
+
+    /* loaded from: classes3.dex */
+    public static final class ExecutorCallbackCall<T> implements Call<T> {
+        final Executor callbackExecutor;
+        final Call<T> delegate;
+
+        /* renamed from: retrofit2.DefaultCallAdapterFactory$ExecutorCallbackCall$1 */
+        /* loaded from: classes3.dex */
+        public class AnonymousClass1 implements Callback<T> {
+            final /* synthetic */ Callback val$callback;
+
+            public AnonymousClass1(Callback callback) {
+                this.val$callback = callback;
+            }
+
+            public /* synthetic */ void lambda$onFailure$1(Callback callback, Throwable th) {
+                callback.onFailure(ExecutorCallbackCall.this, th);
+            }
+
+            public /* synthetic */ void lambda$onResponse$0(Callback callback, Response response) {
+                if (ExecutorCallbackCall.this.delegate.isCanceled()) {
+                    callback.onFailure(ExecutorCallbackCall.this, new IOException("Canceled"));
+                } else {
+                    callback.onResponse(ExecutorCallbackCall.this, response);
+                }
+            }
+
+            @Override // retrofit2.Callback
+            public void onFailure(Call<T> call, Throwable th) {
+                ExecutorCallbackCall.this.callbackExecutor.execute(new a(this, this.val$callback, th, 1));
+            }
+
+            @Override // retrofit2.Callback
+            public void onResponse(Call<T> call, Response<T> response) {
+                ExecutorCallbackCall.this.callbackExecutor.execute(new a(this, this.val$callback, response, 0));
+            }
+        }
+
+        public ExecutorCallbackCall(Executor executor, Call<T> call) {
+            this.callbackExecutor = executor;
+            this.delegate = call;
+        }
+
+        @Override // retrofit2.Call
+        public void cancel() {
+            this.delegate.cancel();
+        }
+
+        @Override // retrofit2.Call
+        public void enqueue(Callback<T> callback) {
+            Objects.requireNonNull(callback, "callback == null");
+            this.delegate.enqueue(new AnonymousClass1(callback));
+        }
+
+        @Override // retrofit2.Call
+        public Response<T> execute() throws IOException {
+            return this.delegate.execute();
+        }
+
+        @Override // retrofit2.Call
+        public boolean isCanceled() {
+            return this.delegate.isCanceled();
+        }
+
+        @Override // retrofit2.Call
+        public boolean isExecuted() {
+            return this.delegate.isExecuted();
+        }
+
+        @Override // retrofit2.Call
+        public I request() {
+            return this.delegate.request();
+        }
+
+        @Override // retrofit2.Call
+        public K timeout() {
+            return this.delegate.timeout();
+        }
+
+        @Override // retrofit2.Call
+        public Call<T> clone() {
+            return new ExecutorCallbackCall(this.callbackExecutor, this.delegate.clone());
+        }
+    }
+
+    public DefaultCallAdapterFactory(Executor executor) {
+        this.callbackExecutor = executor;
+    }
+
+    @Override // retrofit2.CallAdapter.Factory
+    public CallAdapter<?, ?> get(Type type, Annotation[] annotationArr, Retrofit retrofit) {
+        if (CallAdapter.Factory.getRawType(type) != Call.class) {
+            return null;
+        }
+        if (type instanceof ParameterizedType) {
+            return new CallAdapter<Object, Call<?>>() { // from class: retrofit2.DefaultCallAdapterFactory.1
+                final /* synthetic */ Executor val$executor;
+                final /* synthetic */ Type val$responseType;
+
+                public AnonymousClass1(Type type2, Executor executor) {
+                    r2 = type2;
+                    r3 = executor;
+                }
+
+                @Override // retrofit2.CallAdapter
+                public Type responseType() {
+                    return r2;
+                }
+
+                @Override // retrofit2.CallAdapter
+                public Call<?> adapt(Call<Object> call) {
+                    Executor executor = r3;
+                    return executor == null ? call : new ExecutorCallbackCall(executor, call);
+                }
+            };
+        }
+        throw new IllegalArgumentException("Call return type must be parameterized as Call<Foo> or Call<? extends Foo>");
+    }
+}