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CVE-2015-6585 is a type-confusion vulnerability in Hancom Hangul Word Processor's HWPX paragraph-text parser. A logic error in processing paragraph layout elements allows a crafted text-position attribute to cause parsing to begin inside a control character, leading the application to interpret attacker-controlled data as an object pointer. Combined with a heap spray containing a fake object and an attacker-controlled function pointer, this enables arbitrary code execution. Malicious documents exploiting the vulnerability were observed deploying HANGMAN and Destover-family backdoors. Hancom released a security update on September 7, 2015.
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What an attacker gets, and what they’ve been doing with it.
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No public exploit code observed for this vulnerability.
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Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
6 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A Hangul Word Processor vulnerability listed as used by Lazarus and described as a 0day.
A zero-day vulnerability used in Lazarus spearphishing attacks.
A zero-day vulnerability used in Lazarus spearphishing attacks.
A type-confusion vulnerability in Hangul Word Processor's hwpapp.dll when parsing paragraph text in HWPX documents. Crafted paragraph and line-segment data, combined with heap spraying, enables attacker-controlled code execution. Malicious documents observed in the wild exploited the flaw to install the HANGMAN backdoor. The report tentatively links the activity to suspected North Korea-based actors through malware code similarities and infrastructure overlap, without identifying a specific named group.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.