Based on the use of the relatively unique PLAINTEE malware, the malware’s use of the same file paths on in each cluster, and the similar targeting, we have grouped these attacks together under the RANCOR campaign moniker. Interestingly, the delivery document borrowed a technique which was publicized in late 2017 as being used by the Sofacy threat actors, embedding the main malicious code in a EXIF metadata property of the document. By doing so, the main content of the macro itself (Figure 2) can be kept relatively simple, and the malicious’ codes small footprint can help enable evasion of automated detection mechanisms based on macro content