From Endpoint to Funhouse: Evolution of Ransomware Families and Kimsuky-Linked Distribution Cases

2026-10-12 • Ahnlab •

https://asec.ahnlab.com/en/95775

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Kimsuky distributed Funhouse ransomware through a malicious HWP resume that launched a multi-stage chain of batch, VBS, PowerShell, Python, and bitmap-embedded payloads. Quasar RAT served as the final loader for the ransomware, and its configuration, mutex, and supporting scripts connected the activity to Kimsuky's earlier 2026 Endpoint ransomware campaigns. Funhouse preserved core Endpoint family characteristics while changing the encrypted-file extension, contact addresses, cryptographic implementation, and infrastructure. The campaign also marked a delivery shift from malicious LNK files to a user-activated hyperlink inside a Hangul document.

Indicators of Compromise

Type Value First Seen Last Seen
EMAIL [email protected] 2026-09-30 2026-10-12
EMAIL [email protected] 2026-09-30 2026-10-12
IPv4 70.36.97.236 2026-09-30 2026-10-12
IPv4 45.43.60.53 2026-09-30 2026-10-12
URL http://masonparkpg.dothome.co.k… 2026-09-30 2026-10-12
URL http://koocpt.site/meta/logo.php 2026-09-30 2026-10-12
URL http://kgbrazing.makeway2017.ge… 2026-09-30 2026-10-12
URL http://daejin.makeway2017.getho… 2026-09-30 2026-10-12
URL http://daejin.makeway2017.getho… 2026-09-30 2026-10-12
URL http://toyless.shop/pym/logo-ma… 2026-09-30 2026-10-12
URL http://daejin.makeway2017.getho… 2026-09-30 2026-10-12
URL http://koocpt.site/totor/logo.P… 2026-09-30 2026-10-12
URL http://pygrab.xyz/bing/wspkg/lo… 2026-09-30 2026-10-12
HASH 78c219a6bec5fc30f43b62e4934646eb 2026-09-30 2026-10-12
HASH 5be7578bfe633fb268ad97a520abb4e1 2026-09-30 2026-10-12
HASH 3d802ceaf891ea57ecd7d1d786d96a0d 2026-09-30 2026-10-12
HASH 327617e977eefd15708568f43140e595 2026-09-30 2026-10-12
HASH 17d97e3ee3185d82812a4014444c36f3 2026-09-30 2026-10-12
EMAIL [email protected] 2026-05-20 2026-10-12
IPv4 45.95.186.232 2026-04-01 2026-10-12

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