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Rewterz Threat Alert – Kimsuky APT Group – Active IOCs

Severity

High

Analysis Summary

Kimsuky is a North Korean threat actor active since 2012. It primarily targets South Korean government agencies and conducts espionage activities against targets in the United States and Japan. This group has the ability to put up phishing infrastructure that can effectively imitate well-known websites and fool users into entering their passwords. Kimsuky APT is also known by the names Thallium, Black Banshee, and Velvet Chollima. KISA (Korean Internet & Security Agency) published a full investigation of Kimsuky’s phishing infrastructure and TTPs used to attack South Korea in December 2020. To get Initial Access to victim networks, Kimsuky’s threat actors use a variety of spear phishing and social engineering techniques. This group is responsible for the 2014 Korea Hydro & Nuclear Power Co. compromise, and other major campaigns like Operation Kabar Cobra(2019).

Impact

  • Information theft and espionage
  • Exposure of sensitive data

Indicators of Compromise

Domain Name

  • byusunity[.]000webhostapp[.]com

Filename

  • MetaSec[.]dll
  • MetaSecurity[.]dll

MD5

  • 29fb918f6f3a53b228968076610840c4

SHA-256

  • 1fa38bd7a3d6a7b73ac4893bb7edc04fb3f56dcfad3b3e6b3fa6d4729add22e2

SHA-1

  • ee64278c2fc0a0c238d518307551c9c274795b37

Remediation

  • Always be suspicious about emails sent by unknown senders.
  • Never click on links/attachments sent by unknown senders.
  • Block all threat indicators at your respective controls.
  • Search for IOCs in your environment.