Malware AnalysisProduct Features

Preventing Sandbox Evasion with Randomized Filenames

In the malware analysis community, it is common to rename a malware sample to its hash value or add the hash to the filename. This helps analysts easily identify a sample and to store it with a unique filename. This strategy saves time and empowers collaboration. A drawback, however, is malware can use this as a […]

READ MORE
Malware Analysis

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 did a full analysis using VMRay […]

READ MORE
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 ActiveX their machine will be infected […]

READ MORE
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 product to the victims. Embedding […]

READ MORE
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 used this vulnerability to spread ransomware […]

READ MORE

Website designed and developed by Raincastle Communications, Inc.