Malware dynamic analysis

Unlike static analysis, dynamic analysis is a malware analysis technique in which the expert executes the sample, and then studies the sample's behavior as it is being run. The main advantage of dynamic analysis over static is that it allows you to bypass obfuscation by simply observing how a sample behaves, rather than trying to decipher the sample's contents and behavior. Since malware is intrinsically unsafe, researchers resort to executing samples in a virtual machine (VM). This is called sandboxing.