April 23, 2018
HOGFISH, more commonly known as APT10, is an espionage threat group that has been heavily targeting Japan and Western organizations since as early as 2009.The malware used in this campaign uncovered by iDefense analysts, is the latest iteration of RedLeaves: a capable RAT that allows the threat group to perform the following actions on a compromised machine:
This report contains a full overview of a recent HOGFISH campaign targeting organizations in Japan, and taunting tactics used on other intelligence analysts, researchers and responders.
Despite the recent high profile disclosure in the Operation Cloud Hopper by the National Cyber Security Centre (NCSC) and others, HOGFISH remains a highly active and innovative threat group. Hogfish does not shy away from targets around the world, but does have a particular interest on Japan. Stolen data and proprietary information is likely to be transformed by the threat group into actionable intelligence for the group’s sponsors.
To effectively mitigate against threats posed by this particular HOGFISH campaign, security teams should look for and block access to the following C2 domains and IP addresses:
For threat hunting, it is also useful to examine the content of the following folders and look out for anomalous data:
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