Malicious PDF — malware analysis report

Static analysis result for SHA-256 fda58029710a0418…

MALICIOUS

PDF

45.4 KB Created: 2018-11-14 08:37:30 +03:00 Authoring application: Adobe PageMaker 7.0 (via Acrobat Distiller 5.0.5 for Macintosh)
MD5: 0d6cdd63ba8943e9b8462c3174428210 SHA-1: 5e58f528f54087b519c723d21c1c2ea39ae1aedb SHA-256: fda58029710a0418c9d1ea61bd65979500086595ae80f5efee3069344770dcc6
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF contains a large number of embedded links to external PDF files, all hosted on the same domain. This behavior is indicative of a link farm or a redirection mechanism, likely intended to lead users to malicious content or to manipulate search engine rankings. The ML classifier also flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8173

Heuristics 2

  • 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.
  • 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://www.gorillawalker.com/the-wombles-beautiful-boating-weather.pdf
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    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://www.aiim.org/pdfa/ns/extension/
    • http://www.aiim.org/pdfa/ns/schema#
    • http://www.aiim.org/pdfa/ns/property#
    • http://www.aiim.org/pdfa/ns/id/