Malicious PDF — malware analysis report

Static analysis result for SHA-256 62b9b72efc0d6a7c…

MALICIOUS

PDF

45.9 KB Created: 2018-11-15 18:31:40 +03:00 Authoring application: Adobe InDesign CS5_J (7.0.4) (via Acrobat Distiller 9.5.0 (Windows))
MD5: fb8224a9a72c845b62db33353039f310 SHA-1: 34f261b52b3baaf3624da53783ea75f4ba8b0e56 SHA-256: 62b9b72efc0d6a7c00ea888de6dcfd3baba94b4e3c279ed0d834f6d6d835f0a2
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links to external PDF files, suggesting a link farm or SEO poisoning attempt. The ML classifier also flagged this PDF as malicious. The primary attack pattern observed is the distribution of numerous external links, likely intended to drive traffic or distribute further malicious content.

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/vw-bus-camper-bus-van-pick-up-wagon.pdf
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    • http://www.gorillawalker.com/flat-rock-journal-a-day-in-the-ozark-mountains.pdf
    • http://www.gorillawalker.com/first-repertoire-for-viola-bk-2-faber-edition.pdf
    • http://www.gorillawalker.com/old-risks-new-solutions-or-is-it-the-other-way.pdf
    • http://www.gorillawalker.com/risk-topography-systemic-risk-and-macro-modeling-national-bureau-of.pdf
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    • http://www.gorillawalker.com/excellent-online-teaching-effective-strategies-for-a-successful-semester-online.pdf
    • http://www.gorillawalker.com/illinois-a-history-in-pictures.pdf
    • http://www.gorillawalker.com/screening-america-united-states-history-through-film-since-1900.pdf
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    • http://www.gorillawalker.com/chemistry-foundation-double-award-gcse-success-guides.pdf
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    • http://www.gorillawalker.com/patchwork-puzzle-balls.pdf
    • http://www.gorillawalker.com/lectures-in-psychiatry-the-functional-psychoses-the-schizophrenias-and-major.pdf
    • http://www.gorillawalker.com/democracy-in-california-government-and-politics-in-the-golden-state.pdf
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    • http://www.gorillawalker.com/understanding-evidence-based-rheumatology-a-guide-to-interpreting-criteria-drugs.pdf
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    • http://www.gorillawalker.com/guests-of-the-nation-the-people-of-ireland-versus-the.pdf
    • 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/

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