Blog - VMRay

Petya/NotPetya/ExPetr Cyber Attack is More Wiper Than Ransomware

Malware Family: (Not)Petya Hash Value SHA256: 027cc450ef5f8c5f653329641ec1fed 91f694e0d229928963b30f6b0d7d3a745 View the Full Petya Analysis Report According to Microsoft, the Petya (also referred to as NotPetya/ExPetr) Ransomware attack started its initial infection through a compromise at the Ukrainian company M.E.Doc, a developer of tax accounting software. We took a closer look and

Malware Analysis

404 Error Page Hides RAMNIT.A Worm in the Source Code

Malware Family: Win32/Ramnit Hash Values MD5: 089dc369616dafa44a9f7fefb18e8961 SHA1: c4a2430634b7ca7427d2c055dbbb1fb8cd42a285 SHA256: 4ebafa2738f11d73d06dddf18ce41cf 02c6913f431f2b383f7abaa0d04419f2f Most of the time, links aren’t dangerous without user interaction. Recently, we discovered an innocent-looking link for a JPG picture that prompts a user to activate ActiveX on IE. Leveraging a social engineering technique, if the user activates

Malware Analysis

VMRay Analyzer Identifies Resume Containing Evasive Malware

Recently, we received a seemingly innocuous job application with an attached Word document called “resume.doc”. Let’s take a closer look at the malicious behavior embedded in this fake resume. Upon uploading the Word doc into VMRay Analyzer, the signature was sent to our built-in reputation service, where the file hash

Cyber Security, Product Features

‘Close’ Doesn’t Count in Cyber Security

Even though enterprises spend millions every year on information security they still remain vulnerable to persistent cybercriminals in a world where cybercrime like ransomware is pervasive. Organizations cannot afford to do the “bare minimum” when it comes to threat analysis. As the saying goes, ” ‘close’ only counts in horseshoes

Malware Analysis

Jaff Ransomware Hiding in a PDF document

The challenge for a malware author today has more to do with creativity than a deep technical understanding. There are plenty of good trojan building tools out there to make the job easier. But once the author has a finished creation, the big challenge is how to get the finished

Malware Analysis

Wanna Decryptor Worm Spreads Over MS17-010 Vulnerability

About one month ago, the Shadow Brokers hacker group published a set of NSA hacking tools, that included zero-day exploits. One of these exploits is known as the ETERNALBLUE Server Message Block Protocol (SMB) vulnerability (MS17-010). It was only a matter of time before the inevitable happened. A malware author

Malware Analysis

Anti-Sandboxing Techniques in Cerber Ransomware Can’t Detect VMRay Analyzer

A new variant of Cerber ransomware is in the wild and has built-in anti-sandbox tools to detect hooking-based sandbox environments, as explained in this article by Cyphort. The limitations of a hooking-based approach, where a driver is injected into the target environment and ‘hooks’ API calls, allow the malware to

Product Features

Detect, Analyze, Block: Introducing the VMRay App for Phantom

In dealing with potentially malicious files, IT security teams in most organizations are challenged with arduous forensics and mitigation processes that involve a series of manual, repetitive tasks. The VMRay App for Phantom seamlessly integrates Phantom’s security automation and orchestration platform with VMRay’s agentless malware detection and analysis. This enables

Product Features

Introducing the VMRay Analyzer Add-On for Splunk

Multi-vendor security frameworks are a reality in virtually every enterprise. InfoSec teams need to manage that reality in order to protect the organization’s assets and data against targeted cyber-attacks and advanced malware. Deploying multi-vendor products means that there can often be challenges related to interoperability and integration. At VMRay, we

Malware Analysis

Undetected JScript Dropper Installs Sage Ransomware

A popular method to distribute malware (especially ransomware) is to send a JScript file (*.js) by E-Mail or prompt a user surfing the web to execute a file. The goal of this type of attack is to bypass filtering systems that warn users trying to open attachments with certain file

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