Executive Summary
PurpleBravo is a North Korean state-sponsored threat group that overlaps with the “Contagious Interview” campaign first documented in November 2023. It targets software developers, especially in the software development and cryptocurrency verticals, via fake recruiter outreach, interview coding tests, and ClickFix prompts. Activity throughout 2025 has linked multiple fraudulent LinkedIn personas to PurpleBravo through malicious GitHub repositories and fictitious lure brands. The group’s tool set includes BeaverTail (a JavaScript infostealer and loader) and multi-platform remote access trojans (RATs), specifically, PyLangGhost and GolangGhost, optimized for stealing browser credentials and cryptocurrency wallet information.
Based on Recorded Future® Network Intelligence, Insikt Group identified 3,136 individual IP addresses concentrated in South Asia and North America linked to likely targets of PurpleBravo activity from August 2024 to September 2025. Twenty potential victim organizations were observed across the AI, cryptocurrency, financial services, IT services, marketing, and software development verticals in Europe, South Asia, the Middle East, and Central America. In several cases, it is likely that job-seeking candidates executed malicious code on corporate devices, creating organizational exposure beyond the individual target. Insikt Group observed PurpleBravo administering command-and-control (C2) servers via Astrill VPN and from IP ranges in China, with BeaverTail and GolangGhost C2 servers hosted across seventeen distinct providers.
Insikt Group distinguishes PurpleBravo (Contagious Interview) from PurpleDelta (North Korean IT workers) but has documented meaningful intersections. This includes a likely PurpleBravo operator displaying activity consistent with North Korean IT worker behavior, IP addresses in Russia linked to North Korean IT workers communicating with PurpleBravo C2 servers, and administration traffic from the same Astrill VPN IP address associated with PurpleDelta activity.
PurpleBravo presents an overlooked threat to the IT software supply chain. Because many targets are in the IT services and staff-augmentation industries with large public customer bases, compromises can propagate downstream to their customers. This campaign poses an acute software supply-chain risk to organizations that outsource development, particularly in regions where PurpleBravo concentrates its fictitious recruitment efforts.
Key Findings
- PurpleBravo employs a combination of fictitious personas, organizations, and websites to distribute malware to unsuspecting job seekers in the software development industry. Candidates sometimes use their corporate devices, thereby compromising their employers’ security.
- PurpleBravo uses a variety of custom and open-source malware and tools in its operations, including BeaverTail, InvisibleFerret, GolangGhost, and PylangGhost.
- Using Recorded Future Network Intelligence, Insikt Group identified 3,136 individual IP addresses linked to likely targets of PurpleBravo activity and twenty potential victim organizations in the AI, cryptocurrency, financial services, IT services, marketing, and software development industries.
- Insikt Group has observed multiple points of overlap between PurpleBravo and PurpleDelta, Recorded Future’s designation for North Korean IT workers, indicating that some individuals may be active in both operations.
- PurpleBravo’s heavy targeting of the IT and software development industries in South Asia presents an overlooked and acute supply-chain risk to organizations that contract or outsource their IT services work.
