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/kotlinx/coroutines/CancelledContinuation.java

@@ -0,0 +1,50 @@
+package kotlinx.coroutines;
+
+import java.util.concurrent.atomic.AtomicIntegerFieldUpdater;
+import kotlin.Metadata;
+
+@Metadata(d1 = {"\u0000&\n\u0002\u0018\u0002\n\u0002\u0018\u0002\n\u0000\n\u0002\u0018\u0002\n\u0000\n\u0002\u0010\u0003\n\u0000\n\u0002\u0010\u000b\n\u0002\b\u0002\n\u0002\u0018\u0002\n\u0002\b\u0002\b\u0000\u0018\u00002\u00020\u0001B#\u0012\n\u0010\u0002\u001a\u0006\u0012\u0002\b\u00030\u0003\u0012\b\u0010\u0004\u001a\u0004\u0018\u00010\u0005\u0012\u0006\u0010\u0006\u001a\u00020\u0007¢\u0006\u0002\u0010\bJ\u0006\u0010\u000b\u001a\u00020\u0007R\t\u0010\t\u001a\u00020\nX\u0082\u0004¨\u0006\f"}, d2 = {"Lkotlinx/coroutines/CancelledContinuation;", "Lkotlinx/coroutines/CompletedExceptionally;", "continuation", "Lkotlin/coroutines/Continuation;", "cause", "", "handled", "", "(Lkotlin/coroutines/Continuation;Ljava/lang/Throwable;Z)V", "_resumed", "Lkotlinx/atomicfu/AtomicBoolean;", "makeResumed", "kotlinx-coroutines-core"}, k = 1, mv = {1, 9, 0}, xi = 48)
+/* loaded from: classes3.dex */
+public final class CancelledContinuation extends CompletedExceptionally {
+    private static final /* synthetic */ AtomicIntegerFieldUpdater _resumed$volatile$FU = AtomicIntegerFieldUpdater.newUpdater(CancelledContinuation.class, "_resumed$volatile");
+    private volatile /* synthetic */ int _resumed$volatile;
+
+    /* JADX WARN: Illegal instructions before constructor call */
+    /*
+        Code decompiled incorrectly, please refer to instructions dump.
+        To view partially-correct add '--show-bad-code' argument
+    */
+    public CancelledContinuation(kotlin.coroutines.Continuation<?> r3, java.lang.Throwable r4, boolean r5) {
+        /*
+            r2 = this;
+            if (r4 != 0) goto L1a
+            java.util.concurrent.CancellationException r4 = new java.util.concurrent.CancellationException
+            java.lang.StringBuilder r0 = new java.lang.StringBuilder
+            java.lang.String r1 = "Continuation "
+            r0.<init>(r1)
+            r0.append(r3)
+            java.lang.String r3 = " was cancelled normally"
+            r0.append(r3)
+            java.lang.String r3 = r0.toString()
+            r4.<init>(r3)
+        L1a:
+            r2.<init>(r4, r5)
+            r3 = 0
+            r2._resumed$volatile = r3
+            return
+        */
+        throw new UnsupportedOperationException("Method not decompiled: kotlinx.coroutines.CancelledContinuation.<init>(kotlin.coroutines.Continuation, java.lang.Throwable, boolean):void");
+    }
+
+    private final /* synthetic */ int get_resumed$volatile() {
+        return this._resumed$volatile;
+    }
+
+    private final /* synthetic */ void set_resumed$volatile(int i) {
+        this._resumed$volatile = i;
+    }
+
+    public final boolean makeResumed() {
+        return _resumed$volatile$FU.compareAndSet(this, 0, 1);
+    }
+}