Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc4918909b7f15f7…

MALICIOUS

PDF

31.8 KB Created: 2020-04-16 07:17:00 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 74eac9361d629af85d4eb3bec88b14e5 SHA-1: a75d9119bb8061ba9647a4b1d5999d706da40d34 SHA-256: fc4918909b7f15f73ed6ff1de19fb518ee592d0ce99d2241b84aab69ae078a90
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of external links, many of which point to similarly structured URLs on different domains. This behavior is indicative of a link farm or a mechanism for distributing malicious content. The primary heuristic identified a mass of external PDF links, suggesting a coordinated effort to redirect users. The document body, though heavily obfuscated, contains a reference to a 'Gomoku strategy guide' and the authoring application 'wkhtmltopdf', which may be a lure to entice users to click the embedded links.

Heuristics 3

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://limboapparel.com/uploads/1/3/0/2/130272081/130272081.html#gomoku+strategy+guide
    • http://sgpeh.org/uploads/1/3/0/6/130605443/didaxovaz_diduvavasita.pdf
    • http://fleurirstudios.com/uploads/1/3/0/6/130640219/cb87fc.pdf
    • http://streetstylemuse.com/uploads/1/3/0/5/130550929/wuruvot.pdf
    • http://michelle-serna.com/uploads/1/3/0/7/130738777/romewuzu_mapiwu.pdf
    • http://gotchuwhipd.com/uploads/1/3/0/7/130776079/6053475.pdf
    • http://mojohomeautomation.com/uploads/1/3/0/5/130588532/773baa9f6e91f.pdf
    • http://floridaisstillhome.com/uploads/1/3/1/3/131383258/7233141.pdf
    • http://boutiqueforboth.net/uploads/1/3/0/3/130324063/lunavun.pdf
    • http://metairielaw.com/uploads/1/3/0/6/130605065/kadumebigadifujera.pdf
    • http://hendersonpoolandspa.com/uploads/1/3/1/6/131606231/9527972.pdf
    • http://vceesolutions.com/uploads/1/3/0/7/130775888/woxesaropir.pdf
    • http://mmssciencecurriculum.com/uploads/1/3/0/4/130476720/7926799.pdf
    • http://vmclegalservices.com/uploads/1/3/0/4/130488831/37d6437220853fb.pdf
    • http://artblog.studio/uploads/1/3/0/3/130379311/2451986.pdf
    • http://vmclegalservices.com/uploads/1/3/0/4/1304

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