This is currently a research-grade task. Most "unpackers" for Themida 3.x only remove the outer layers, leaving VM-protected code intact (the target remains partially virtualized).
To understand the difficulty of unpacking Themida 3.x, one must first understand the technology it employs. Unlike simple packers that merely compress an executable and decompress it in memory, Themida operates as a system-layer protector. themida 3x unpacker
As someone who has spent years analyzing malware and software protection, I can tell you that searching for a generic “Themida 3.x unpacker” is like searching for a universal skeleton key that opens every bank vault in the world. It doesn’t exist. And if a file claims to be one, you are 99% likely downloading a stealer or a ransomware dropper. This is currently a research-grade task
Three trends are shaping the future:
The software is "aware." If it detects a debugger like x64dbg or IDA Pro, it will often crash itself or lead the analyst into a "garbage code" trap. Mutation & Obfuscation: Unlike simple packers that merely compress an executable
Themida 3.x remains at the top of the software protection food chain. While there is no magic that works on every file, the combination of x64dbg , ScyllaHide , and specialized scripts makes it possible to deconstruct these protected binaries.