Book Image

Malware Analysis Techniques

By : Dylan Barker
Book Image

Malware Analysis Techniques

By: Dylan Barker

Overview of this book

Malicious software poses a threat to every enterprise globally. Its growth is costing businesses millions of dollars due to currency theft as a result of ransomware and lost productivity. With this book, you'll learn how to quickly triage, identify, attribute, and remediate threats using proven analysis techniques. Malware Analysis Techniques begins with an overview of the nature of malware, the current threat landscape, and its impact on businesses. Once you've covered the basics of malware, you'll move on to discover more about the technical nature of malicious software, including static characteristics and dynamic attack methods within the MITRE ATT&CK framework. You'll also find out how to perform practical malware analysis by applying all that you've learned to attribute the malware to a specific threat and weaponize the adversary's indicators of compromise (IOCs) and methodology against them to prevent them from attacking. Finally, you'll get to grips with common tooling utilized by professional malware analysts and understand the basics of reverse engineering with the NSA's Ghidra platform. By the end of this malware analysis book, you’ll be able to perform in-depth static and dynamic analysis and automate key tasks for improved defense against attacks.
Table of Contents (17 chapters)
Section 1: Basic Techniques
Section 2: Debugging and Anti-Analysis – Going Deep
Section 3: Reporting and Weaponizing Your Findings
Section 4: Challenge Solutions

A word on obfuscation and de-obfuscation tools

There are several tools that are useful for both obfuscating and de-obfuscating malicious scripts. We'll touch on several of these, and also their de-obfuscation counterparts.

Invoke-Obfuscation and PSDecode

Invoke-Obfuscation is a powerful tool written by an ex-Mandiant red-team employee. It can take existing PowerShell scripts that have not been obfuscated in any way, and fully obfuscate them to evade endpoint detection and response (EDR) detection and make analysis more difficult for analysts. If you'd like to practice creating obfuscated scripts, the tool can be downloaded from You can see the tool in action in the following screenshot:

Figure 8.20 – The splash screen and options for Invoke-Obfuscation

Figure 8.20 – The splash screen and options for Invoke-Obfuscation

The blue-team counterpoint to Invoke-Obfuscation is PSDecode, which attempts to go through line by line to de-obfuscate and reverse...