Malware Analysis

Malware Analysis Spotlight: Formbook (September 2020)

A Fresh Look at an Old Problem Formbook is a well-known malware family of data stealers and form grabbers. Sold as “malware-as-a-service” on hacking forums since early 2016, anyone so inclined can purchase a subscription and use the Formbook tool. It is usually distributed using malspam containing malicious attachments and

Malware Analysis

Malware Analysis Spotlight: Qbot’s Delivery Method

The Re-Emergence of Qbot After more than a decade in operation, the Qbot Trojan is back in the news. A modified version of the malware which now extracts email threads from Outlook to use in phishing attacks was used in a prominent campaign that ran from March to the end

Malware Analysis

Threat Bulletin: WastedLocker Ransomware

Targeted ransomware is a common occurrence nowadays. Recently Garmin confirmed to have been the target of a ransomware attack on July 23, 2020, which led to the interruption of many of their online services. According to Bleeping Computer, the ransomware has been confirmed to be WastedLocker. The article goes on

Malware Analysis

SANS Webcast Recap: Defense Against Dark Arts – Dissecting Sandbox Evasion Techniques

If you are of a certain age, you might remember Mad Magazine’s satirical Spy v. Spy comic strip in which two agents – one dressed completely in white and the other in black – would try and outwit and annihilate each other on a weekly basis. Malware authors and the

Malware Analysis

Malware Analysis Spotlight: MassLogger’s Noisy Stealing Attempts

In this Malware Analysis Spotlight, the VMRay Labs Team will examine MassLogger, a Spyware/Stealer that was first publicly observed in-the-wild at the end of April. During our analysis, we monitored a significant amount of behavioral matches for techniques that MassLogger uses to discover the host machine and to steal sensitive

Malware Analysis

Malware Analysis Spotlight: The Return of Emotet

After a long time of being inactive, the infamous malware delivery framework Emotet is back – the three Emotet botnets started pushing malicious spam on Friday, July 17. In this Malware Analysis Spotlight, we will take a look at one of the Microsoft Word documents used in the campaign (Figure

Threat Bulletin: Dissecting GuLoader’s Evasion Techniques

Editor’s Note: This blog post was updated on August 10, 2020. Over the last couple of months, we observed a new downloader called GuLoader (also known as CloudEyE) that has been actively distributed in 2020. In contrast to prototypical downloaders, GuLoader is known to use popular cloud services such as

Malware Analysis

Threat Bulletin: Cutting-off the Command-and-Control Infrastructure of CollectorGoomba

A Primer on Spyware-as-a-Service The rise in spyware-as-a-service allows cyber-criminals to choose a specialty, whether improving spyware, infecting users, or maximizing the profit derived from stolen information. The business model for spyware-as-a-service starts with an individual or team to developing the initial spyware and standing up any necessary infrastructure that

Malware Analysis

Malware Analysis Spotlight: Phishing Site Spread through SMS

In this Malware Analysis Spotlight, the VMRay Labs looks at the behavior of a phishing site distributed through an SMS message. Based on the content of the SMS message, this does not seem to be part of a targeted attack but rather part of a massive phishing campaign that aims

Malware Analysis

SANS Webcast Recap: Dissecting Living off the Land Techniques

Living off the Land Binaries – aka LOLBins – represent one of the more creative and insidious malware threats today. Attackers use LOLBins to evade detection by manipulating legitimate systems and processes for malicious purposes. In this post—condensed from a SANS webcast featuring SANS Analyst Jake Williams and VMRay Sr.

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