> For the complete documentation index, see [llms.txt](https://pwnsec-notes.gitbook.io/ctf-notes/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://pwnsec-notes.gitbook.io/ctf-notes/malware-analysis/memory-mapping.md).
# Memory Mapping
Memory-mapping is **a mechanism that maps a portion of a file, or an entire file, on disk to a range of addresses within an application's address space**. The application can then access files on disk in the same way it accesses dynamic memory.
## Unmaping **mechanism**
To unmap the PE file manually we must make Raw Addr = Virtual Addr and Raw Size = Virtual size
PE-bear used to unmap the PE file
