Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa6027365544f2db…

MALICIOUS

PDF

43.2 KB Created: 2018-12-15 08:00:52 +03:00 Authoring application: PScript5.dll Version 5.2 (via ePapyrus PSI 8.51)
MD5: 8550cdfafb70305fb29634b9d2cb6e80 SHA-1: 0de0e81591d44fac982d6426f7166233b74f6a33 SHA-256: fa6027365544f2dbe4ef3e49b07171c550ea3398af05f2f9a35dd4d608bbefc7
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded URLs pointing to external PDF files, a technique often used for SEO manipulation or to distribute malicious content. The ML classifier also flagged this PDF as malicious. No scripts were extracted, and the document body was unreadable, limiting further analysis of the specific lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9171

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/camp-stoves-and-fireplaces.pdf
    • http://www.gorillawalker.com/the-surf-girl-handbook-the-essential-guide-for-surf-chicks.pdf
    • http://www.gorillawalker.com/haemostasis-in-cerebrospinal-fluid-basic-concept-of-antifibrinolytic-therapy-of.pdf
    • http://www.gorillawalker.com/12-step-prayer-book-lakeside-meditation-series-paperback.pdf
    • http://www.gorillawalker.com/the-ultimate-microwave-cookbook.pdf
    • http://www.gorillawalker.com/the-world-s-wit-and-humor-an-encyclopedia-of-the.pdf
    • http://www.gorillawalker.com/pleasure-pack-sampler-bdsm-billionaire-bbw-stranger-encounters-ghosts-mc.pdf
    • http://www.gorillawalker.com/the-bible-and-the-new-york-times.pdf
    • http://www.gorillawalker.com/late-neoclassical-economics-the-restoration-of-theoretical-humanism-in-contemporary.pdf
    • http://www.gorillawalker.com/theory-and-application-of-infinite-series.pdf
    • http://www.gorillawalker.com/irish-music-in-the-twentieth-century-irish-musical-studies-vol.pdf
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    • http://www.gorillawalker.com/japanese-i-comprehensive-learn-to-speak-and-understand-japanese-with.pdf
    • http://www.gorillawalker.com/hollow-space-book-1-venture-xantoverse-kindle-edition.pdf
    • http://www.gorillawalker.com/the-misadventures-of-jane.pdf
    • http://www.gorillawalker.com/advances-in-perinatal-thyroidology-topics-in-applied-chemistry.pdf
    • http://www.gorillawalker.com/thinking-beyond-the-unthinkable-harnessing-doom-from-the-cold-war.pdf
    • http://www.gorillawalker.com/global-rfid-the-value-of-the-epcglobal-network-for-supply.pdf
    • http://www.gorillawalker.com/dancing-with-dynamite-social-movements-and-states-in-latin-america.pdf
    • http://www.gorillawalker.com/cloud-computing-law-kindle-edition.pdf
    • http://www.gorillawalker.com/military-and-civilian-pyrotechnics.pdf
    • http://www.gorillawalker.com/amber-the-orange-fairy-rainbow-magic-the-rainbow-fairies-no.pdf
    • http://www.gorillawalker.com/argentina-immigration-laws-and-regulations-handbook-strategic-information-and-basic.pdf
    • http://www.gorillawalker.com/chocolate-and-vanilla-an-interracial-erotica-sundae-ww-bm-and.pdf
    • http://www.gorillawalker.com/an-introduction-to-zoology-investigating-the-animal-world.pdf
    • http://www.gorillawalker.com/going-to-the-gradies-humor-in-surgical-training-kindle-edition.pdf
    • http://www.gorillawalker.com/early-railroad-transportation-in-jackson-county-ohio.pdf
    • http://www.gorillawalker.com/fractions-with-tangrams-grades-2-4.pdf
    • http://www.gorillawalker.com/ancient-maya-with-transparency-s.pdf
    • http://www.gorillawalker.com/statistical-process-control-third-edition-a-really-practical-guide.pdf
    • http://www.gorillawalker.com/the-sense-of-semblance-philosophical-analyses-of-holocaust-art.pdf
    • http://www.gorillawalker.com/the-masters-file.pdf
    • http://www.gorillawalker.com/global-change-and-caribbean-vulnerability-environment-economy-and-society-at.pdf
    • http://www.gorillawalker.com/dumfries-and-galloway-40-coast-country-walks-j-fallis-pocket.pdf
    • http://www.gorillawalker.com/matlab-for-engineers-explained.pdf
    • http://www.gorillawalker.com/mastering-autocad-14-premium-edition.pdf
    • http://www.gorillawalker.com/latin-american-economic-crises-trade-and-labour-international-economic-association.pdf
    • http://www.gorillawalker.com/black-s-law-dictionary-10th-abridged.pdf
    • http://www.gorillawalker.com/the-world-s-wit-and-h
    • 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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