Macnica (security report)
Attack using CloudDragon (Kimsuky) and DarkSeoul (Lazarus) VSingle malware against Japan · (no date on page; report on cyber espionage trends targeting Japan, fiscal 2020)
we analyzed that an attack 3 using the CloudDragon (Kimsuky 2 ) and DarkSeoul attack group's VSingle malware was being carried out against Japan. (We analyzed the characteristics of the attack group using the VSingle malware separately as a group related to DarkSeoul 4 among the Lazarus attack groups).