
New release: 0.9.0
Malcat version 0.9.0 is out! You can now open multiple files in parallel, scan for FLIRT signatures, analyse onenote files and enjoy quick bookmarks handling, in addition to the usual bug fixing and various QOL improvements
Read more →

New release: 0.8.5
New version 0.8.5 is out! Enjoy the new "big file" mode, an improved disassembly view, advanced Yara integration and VHD + FAT filesystem support, as well as many other improvements.
Read more →

LNK forensic and config extraction of a cobalt strike beacon
Windows shortcut files can contain valuable data. We will see how to extract the most information out of a .lnk downloader and will manually extract the configuration file of the final cobalt strike beacon using malcat
Read more →

New release: 0.8.4
New version 0.8.4 is out! Enjoy support for ubuntu 22.04 / python 3.10! We've also improved the analysis of LNK and NSIS files, added more than 400000 API hashes in our constant database and malcat can now identify and parse Cobalt strike configuration files.
Read more →

New release: 0.8.2
New version 0.8.2 is out! Enjoy blazing fast stack strings detection for x86/x64, CD/DVD file system browsing, Py2Exe scripts disassembly and lzma streams detection.
Read more →

Reversing a NSIS dropper using quick and dirty shellcode emulation
We will statically unpack and emulate a malicious NSIS installer running multiple shellcodes, up to the final Lokibot password stealer and its configuration.
Read more →

New release: 0.8.0
New version 0.8.0 is out! New RTTI analysis, VTGrep integration, improved python + Golang disassembly, color themes and advanced selection.
Read more →

Cutting corners against a Dridex downloader
When one faces obfuscated code, it is sometimes more efficient to focus on the data instead. By using Malcat's different views and analyses (and a bit of guessing as well), we will show how to statically unpack an excel downloader and the following obfuscated native dropper without (much) reverse engineering.
Read more →

New release: 0.7.88
New version 0.7.88 is out! Added MSI installer decompiler, improved scripting documentation and added Joe Sandbox threat intelligence lookup.
Read more →

Exploit, steganography and Delphi: unpacking DBatLoader
We will unroll a maldoc spam exploiting CVE-2018-0798 leading to a multi-staged Delphi dropper abusing steganography and cloud services to conceal its payload
Read more →

Statically unpacking a simple .NET dropper
Our target is a 2-layers .NET dropper using multiple cipher passes (XOR, AES ECB and AES CBC + PBKDF2) to finally drop a Loki sample. Without even starting a debugger, we will show how to unpack it 100% statically using Malcat's builtin transformations and the python scripting engine.
Read more →