Since its public launch in October 2025, nightMARE has quickly become a vital tool for malware analysts seeking to optimize static and dynamic analysis workflows.
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Developed by Elastic Security Labs , it combines mature open source reverse engineering components under a unified Python API. Rather than forcing users to manage different dependencies, nightMARE leverages Rizin via rz-pipe for disassembly and the Unicorn engine for lightweight emulation.
This coherent design enables researchers to quickly build configuration extraction tools, create IoCs, and automate repetitive analysis tasks. Born from the need to reduce code duplication in Elastic's internal tools, nightMARE is based on practices that have been refined over thousands of sample analyses.
Elastic analysts noted that many proprietary scripts suffered from brittle dependency chains and inconsistent abstractions. By integrating common patterns—such as pattern matching, command emulation, and cross-reference enumeration—into a powerful library, nightMARE provides a solid foundation for both experienced and novice reverse engineers.
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After installation, nightMARE exposes three main modules: analysis, kernel, and malware. The analysis module integrates Rizin to enable disassembly, hexadecimal pattern searches, and function enumeration. The core module offers utilities for bitwise, regex- , and data transmission. Finally, the malware module groups exporters for specific families—from Smokeloader to LUMMA—into versioned subpackages that demonstrate real-world uses of the API.
Elastic researchers identified a significant increase in LUMMA theft campaigns in mid-2025, highlighting the value of quickly extracting configurations. Through nightMARE’s emulation capabilities, analysts can create a WindowsEmulator, register Import Address Table (IAT) to APIs like Sleep, and execute targeted code sequences in seconds.
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By intercepting decryption routines during the process, nightMARE automates the recovery of C2 domains without manual decompression or detection via a debugger.
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