VBA Macro Deobfuscator & OLE Extractor
Extract and deobfuscate VBA macros from malicious Office documents. CyberNexus Decoder parses OLE compound files (.doc, .xls, .ppt), pulls macro streams, and resolves Chr()/ChrW() concatenation, StrReverse, and string-building obfuscation common in maldocs.
Open the vba macro deobfuscator tool →How to use the vba macro deobfuscator
- Upload the OLE Office document or paste the macro source.
- Run "Extract OLE/VBA Streams" to enumerate streams and pull macro code.
- Run "Deobfuscate VBA Expressions" to resolve Chr() and StrReverse.
- Use "Extract Network IOCs" to surface download URLs and dropped files.
Features
- OLE compound file (MS-CFB) directory and stream parsing.
- VBA macro string and indicator extraction.
- Resolves Chr/ChrW concatenation and StrReverse obfuscation.
- Flags ADODB, Shell, and download indicators.
Frequently asked questions
How do I extract macros from a Word document?
Upload the .doc/.xls file and run Extract OLE/VBA Streams. It parses the OLE structure and pulls readable strings from the macro streams.
Can it deobfuscate Chr() obfuscation?
Yes. Deobfuscate VBA Expressions resolves Chr/ChrW concatenation and StrReverse to reconstruct the original strings.