Kimsuky's Ongoing Evolution of KimJongRAT and Expanding Threats

2025-11-21 ENKI

https://www.enki.co.kr/en/media-center/blog/kimsuky-s-ongoing-evolution-of-kimjongrat-and-expanding-threats

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ENKI attributes an active KimJongRAT-related campaign to Kimsuky, with phishing emails impersonating South Korean public institutions such as the Ministry of Gender Equality and Family and the National Tax Service. The infection chain uses PHPMailer-delivered messages, attacker redirects, GitHub Releases ZIP archives, decoy PDFs, malicious LNK files, mshta, Korean URL shorteners, macro-enabled DOC files, obfuscated VBScript, HTA payloads, and Google Drive-hosted follow-on files. Later stages branch on Windows Defender service state, decrypt AES- or RC4-protected payloads, run sys.dll through rundll32, perform anti-VM checks, and download modules including a Chrome App-Bound Encryption master-key extractor and a KimJongRAT-derived infostealer. The infrastructure and artifacts show Kimsuky adapting social-engineering lures, commodity hosting, layered obfuscation, and browser credential-theft capability against South Korean targets.

Indicators of Compromise

Type Value First Seen Last Seen
DOMAIN buly.kr 2025-08-10 2026-04-07
DOMAIN link24.kr 2025-11-21 2026-01-14
DOMAIN kzloly.nmailhub.com 2025-11-21 2026-01-14
DOMAIN quemr.mailhubsec.com 2025-11-21 2026-01-14
HASH 677e77265c7ba52e825fc62023942213 2025-09-18 2026-01-14
HASH 748b45f59a2b02f41d001f2d71dea9a… 2025-09-18 2026-01-14
HASH c24353e61826eb7187d1acabbd857dd… 2025-09-18 2026-01-14
IPv4 142.11.248.98 2025-09-18 2026-01-14
HASH d162867b60f8d5a7630871120f38dfe… 2025-11-21 2025-11-21
HASH 7f4fc97870f4442477c9aafdb252318… 2025-11-21 2025-11-21
HASH d69fbf23e7492618cadc63d171010cd8 2025-11-21 2025-11-21
HASH 77f131bc8f660f85812c0d2e0da8e77e 2025-11-21 2025-11-21
HASH d9ecf148c88bfd9791758b3be1a9f459 2025-11-21 2025-11-21
HASH 003ea91e9f52ecfdc3aadb2732e9b54c 2025-11-21 2025-11-21
HASH c69909ea3c131181fa7ae12155bcae17 2025-11-21 2025-11-21
HASH e3a937869322cc4cd765fcbf16d5b9ea 2025-11-21 2025-11-21
HASH c0ee9a9046d82b294b3bf3bec997fc45 2025-11-21 2025-11-21
HASH 66c4e2dd235c4d8d31abaf96e051585e 2025-11-21 2025-11-21
HASH 8b6580e14b8164e28e684d48691ddf4d 2025-11-21 2025-11-21
HASH 7d098f0f41601216ffd2e7f06da56c7… 2025-11-21 2025-11-21
HASH f000df00a424cefcd8efff48ab167169 2025-11-21 2025-11-21
EMAIL [email protected] 2025-11-21 2025-11-21
URL https://drive.google.com/uc?exp… 2025-11-21 2025-11-21
URL https://drive.google.com/uc?exp… 2025-11-21 2025-11-21
URL https://link24.kr/HSXrWzV 2025-11-21 2025-11-21
URL https://drive.google.com/uc?exp… 2025-11-21 2025-11-21
URL https://drive.google.com/ucexpo… 2025-11-21 2025-11-21
URL https://drive.google.com/uc?exp… 2025-11-21 2025-11-21
URL https://drive.google.com/uc?exp… 2025-11-21 2025-11-21
URL https://drive.google.com/uc?exp… 2025-11-21 2025-11-21
URL https://drive.google.com/uc?exp… 2025-11-21 2025-11-21
URL https://drive.google.com/uc?exp… 2025-11-21 2025-11-21
URL https://buly.kr/EooX5dX 2025-11-21 2025-11-21
DOMAIN natezlx.myvnc.com 2025-11-21 2025-11-21
DOMAIN nid-naverbpk.onthewifi.com 2025-11-21 2025-11-21
DOMAIN daumcyd.ddns.net 2025-11-21 2025-11-21
IPv4 27.102.113.20 2025-11-21 2025-11-21
IPv4 103.249.28.34 2025-11-21 2025-11-21
IPv4 27.102.113.170 2025-11-21 2025-11-21
IPv4 183.111.226.13 2025-11-21 2025-11-21
IPv4 27.102.113.209 2025-11-21 2025-11-21
IPv4 27.102.113.107 2025-11-21 2025-11-21
IPv4 160.202.160.248 2025-11-21 2025-11-21
IPv4 61.97.243.9 2025-11-21 2025-11-21

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