Unraveling Raspberry Robin's Layers: Analyzing Obfuscation Techniques and Core Mechanisms

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IntroductionDiscovered in 2021, Raspberry Robin (also known as Roshtyak) is a malicious downloader that has circulated in the wild for several years, primarily spreading through infected USB devices. Although USB devices are a common and unremarkable tactic for spreading malware, Raspberry Robin stands out due to its unique binary-obfuscation techniques, ... Read More

Automating Pikabot’s String Deobfuscation

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IntroductionPikabot is a malware loader that originally emerged in early 2023 with one of the prominent features being the code obfuscation that it leverages to evade detection and thwart technical analysis. Pikabot employed the obfuscation method to encrypt binary strings, including the address of the command-and-control (C2) servers. In this ... Read More

The (D)Evolution of Pikabot

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Introduction Pikabot is a malware loader that originally emerged in early 2023. Over the past year, ThreatLabz has been tracking the development of Pikabot and its modus operandi. There was a significant increase in usage of Pikabot in the second half of 2023, following the FBI-led takedown of Qakbot. This ... Read More

Technical Analysis of HijackLoader

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Introduction HijackLoader is a new malware loader, which has grown in popularity over the past few months. Even though HijackLoader does not contain advanced features, it is capable of using a variety of modules for code injection and execution since it uses a modular architecture, a feature that most loaders ... Read More

Technical Analysis of Rhadamanthys Obfuscation Techniques

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Key Points Rhadamanthys is an information stealer that consists of two components, the loader and the main module (responsible for exfiltrating collected credentials). The malware implements complex anti-analysis techniques by using a public open source library. Rhadamanthys is capable of extracting credentials of various applications such as Keepass and cryptocurrency ... Read More