AppWizard
May 5, 2026
A North Korean hacking group has targeted a digital gaming platform popular among the Korean ethnic enclave in China, using a sophisticated strategy to infiltrate Android applications. Researchers from Eset discovered that an app on the platform contained a backdoor known as BirdCall, linked to North Korea. The official website for the gaming platform hosted the same suspicious APK file. A second Android file associated with another game on the same site was also found to contain the BirdCall backdoor. This supply-chain attack was attributed to the threat actor ScarCruft (APT37), active in Asia and extending into Europe and the Middle East since late 2024. The hackers likely compromised the web server to recompile original APKs with the backdoor, which can collect sensitive information such as contacts, SMS messages, call logs, documents, media files, and private keys, and can take screenshots and record audio. The malware disguises its command and control traffic among regular internet traffic, primarily using Zoho WorkDrive for operations.
