macOS NimDoor | DPRK Threat Actors Target Web3 and Crypto Platforms with Nim-Based Malware www.sentinelone.com/labs/maco…

In April 2025, Huntabil.IT observed a targeted attack on a Web3 startup, attributing the incident to a DPRK threat actor group. Several reports on social media at the time described similar incidents at other Web3 and Crypto organizations. Analysis revealed an attack chain consisting of an eclectic mix of scripts and binaries written in AppleScript, C++ and Nim. Although the early stages of the attack follow a familiar DPRK pattern using social engineering, lure scripts and fake updates, the use of Nim-compiled binaries on macOS is a more unusual choice. A report by Huntress in mid-June described a similar initial attack chain as observed by Huntabil.IT, albeit using different later stage payloads.