ScarCruft针对韩国金融、高校下发Chinotto后门的攻击活动分析 - 安恒威胁情报中心

2023-08-30 • 安恒信息 • ScarCruft analysis of attack activities targeting South Korean financial institutions and universities with Chinotto backdoors - Anheng Threat Intelligence Center •

https://starmap.dbappsecurity.com.cn/blog/articles/2023/08/30/scarcruft-deliver-chinotto/

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ScarCruft targeted South Korean financial institutions, universities, and individual users with ZIP/RAR lures that delivered Chinotto PowerShell backdoors or an InfoStealer. The campaign used Korean financial and insurance themes, including encrypted decoy documents that required a target birthdate or password, and malicious LNK/CHM files hosted on public websites. One chain unpacked a fake XLSX LNK and BAT script, persisted via `UserProfileSafeBackup.bat`, invoked mshta, and contacted `75.119.136.207` and `bian0151.cafe24.com` for Chinotto commands. Other CHM chains masqueraded as HanaCard, KBank, DB Insurance, or university-related documents, with the InfoStealer collecting browser, recent-file, and registry artifacts before uploading them to attacker infrastructure.

Indicators of Compromise

Type Value First Seen Last Seen
DOMAIN ableinfo.co.kr 2023-08-30 2025-01-12
HASH 196f2a674a61dbeae0ec2b0b7b9ac8d… 2023-08-30 2023-12-01
HASH 35ae5d7b0bd61b3ca18b1575e132c50… 2023-08-30 2023-12-01
HASH a39831ecbe0792adf87f63fb9955735… 2023-08-22 2023-09-06
HASH ebd20c8c63690965267c97348f4db89… 2023-08-22 2023-09-06
URL http://bian0151.cafe24.com/admi… 2023-08-22 2023-09-06
DOMAIN bian0151.cafe24.com 2023-08-22 2023-09-06
IPv4 75.119.136.207 2023-08-22 2023-09-06
HASH ff58d80dfc9651a3d04ed1401d786a2… 2023-08-30 2023-08-30
HASH ebb6577fb4fd77f5626c57748987381… 2023-08-30 2023-08-30
URL http://ableinfo.co.kr/member/ 2023-08-30 2023-08-30
URL http://bian0151.cafe24.com/memb… 2023-08-30 2023-08-30
HASH 422480a5c40bfeecbb6a8919894ee46… 2023-08-22 2023-08-30
URL https://tosals.ink/uEH5J.html 2023-07-21 2023-08-30
DOMAIN tosals.ink 2023-07-21 2023-08-30
URL https://atusay.lat/kxydo 2023-07-20 2023-08-30
DOMAIN atusay.lat 2023-07-20 2023-08-30

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