Hangro: Investigating North Korean VPN Infrastructure Part 1 | North Korean Internet

Hangro: Investigating North Korean VPN Infrastructure Part 1 | North Korean Internet
The article discusses the acquisition of a .kp domain and the implications of VPN usage in North Korea, particularly focusing on a software called Hangro that may serve as a VPN. It explores the IP infrastructure associated with Hangro, its connections to North Korean nationals, and its potential uses for email communication within the country. Affected Platform: North Korea

Keypoints :

  • A user on the webdev subreddit successfully acquired a .kp domain but noted the necessity of a VPN to access it.
  • Most VPN providers claiming to operate in North Korea offer false IP geolocation.
  • Hangro is speculated to function as a VPN for users outside North Korea.
  • The IP infrastructure for Hangro includes addresses in both North Korea and Russia.
  • Hangro’s possible uses include facilitating email communication within North Korea.
  • Jo Myong Chol, a North Korean national, is linked to the registration of hangro.net.
  • Hangro software reportedly disables external emails and is used for communication between North Korean authorities and companies.
  • North Korean trading companies must pay to use Hangro.

MITRE Techniques :

  • TA0040: Resource Development – Hangro software is potentially used for establishing a controlled communication channel for North Korean authorities.
  • TA0006: Credential Dumping – The software may facilitate the management of email credentials specific to North Korean users.
  • TA0009: Collection – Hangro is used for collecting and managing email communications within North Korea.

Indicator of Compromise :

  • [IP Address] 175.45.176.21
  • [IP Address] 175.45.176.22
  • [IP Address] 175.45.176.32
  • [IP Address] 188.43.136.115
  • [IP Address] 188.43.136.116
  • Check the article for all found IoCs.


Full Research: https://nkinternet.wordpress.com/2025/01/06/hangro-north-korean-vpn-infrastructure/