Trellix describes an experimental malware-comparison method that converts binaries into audio and frequency spectra, then checks whether the sound profile reflects code similarities seen in traditional reversing. The DPRK-relevant section applies the method to VHD ransomware and a BEAF sample from prior DPRK ransomware research, where the samples showed some code similarity but substantial differences. Audio and plot-spectrum analysis also showed visible differences, including higher activity above 7000Hz in the VHD sample compared with BEAF. The piece is mainly methodological rather than a new intrusion report, but it documents an alternative way to compare DPRK-linked ransomware samples against known code-analysis findings.