dynamic_analysis.js

function hookFunctionCall() {
    Interceptor.attach(Module.findExportByName(null, "function_name"), {
      onEnter: function (args) {
        var arg1 = args[0].toInt32();
        var arg2 = args[1].toInt32();

        // Log the function arguments
        send("Function arguments - arg1: " + arg1 + ", arg2: " + arg2);
      },
      onLeave: function (retval) {
        // Log the return value
        send("Function return value: " + retval.toInt32());
      }
    });
  }

  function hookMemoryAccess() {
    Interceptor.attach(ptr("address_to_hook"), {
      onRead: function (access, address, size) {
        // Log the memory read operation
        send("Memory Read - Address: " + address + ", Size: " + size);
      },
      onWrite: function (access, address, size) {
        // Log the memory write operation
        send("Memory Write - Address: " + address + ", Size: " + size);
      }
    });
  }

  function hookAPICall() {
    Interceptor.attach(Module.findExportByName(null, "api_function_name"), {
      onEnter: function (args) {
        // Log the API function name and arguments
        send("API Call - Function: " + this.functionName + ", Arg1: " + args[0].toInt32());
      },
      onLeave: function (retval) {
        // Log the return value of the API function
        send("API Return Value: " + retval.toInt32());
      }
    });
  }

  function traceExecutionFlow() {
    Stalker.follow(Process.getCurrentThreadId(), {
      events: {
        call: true, // Log function calls
        ret: true, // Log function returns
        exec: true // Log instruction execution
      },
      onReceive: function (events) {
        // Log the events received from Stalker
        for (var i = 0; i < events.length; i++) {
          var event = events[i];
          var type = event[0];
          var address = event[1];

          if (type === "call") {
            send("Function call - Address: " + address);
          } else if (type === "ret") {
            send("Function return - Address: " + address);
          } else if (type === "exec") {
            send("Instruction execution - Address: " + address);
          }
        }
      }
    });
  }

  function performDynamicAnalysis() {
    try {
      hookFunctionCall();
      hookMemoryAccess();
      hookAPICall();
      traceExecutionFlow();
    } catch (error) {
      send("Error during dynamic analysis: " + error);
    }
  }

  performDynamicAnalysis();