Malware Disguised as HWP Document File (Kimsuky)

2023-06-23 Ahnlab

https://asec.ahnlab.com/en/54736/

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Considering that the words used in the malware and the executed script code are similar to that of previously analyzed codes, it is suspected that the same threat group (Kimsuky) is also the creator of this malware. Both the script present in the above URL and the subsequent scripts executed perform functions such as user credential leakage and keylogging, which are consistent with the findings in the <Analysis Report on Malware Distributed by the Kimsuky Group>. The message contains North Korean dialect as shown in Figure 4 below. Given the continuous detection of this malware type being distributed, users are advised to exercise extra caution.

Indicators of Compromise

Type Value First Seen Last Seen
HASH 8133c5f663f89b01b30a052749b5a988 2023-06-16 2024-04-17
DOMAIN well-story.co.kr 2023-06-16 2024-04-17
HASH 91029801f6f3a415392ccfee8226be67 2023-06-16 2023-08-16
HASH 73174c9d586531153a5793d050a394a8 2023-06-16 2023-08-16
HASH f05991652398406655a6a5eebe3e5f3a 2023-06-16 2023-06-23
HASH ec1b518541228072eb75463ce15c7bce 2023-06-16 2023-06-23
URL http://well-story.co.kr/adm/inc… 2023-06-16 2023-06-23
URL http://well-story.co.kr/adm/inc… 2023-06-16 2023-06-23
URL http://well-story.co.kr/adm/inc… 2023-06-16 2023-06-23
URL http://well-story.co.kr/adm/inc… 2023-06-16 2023-06-23
URL http://well-story.co.kr/adm/inc… 2023-06-16 2023-06-23

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