Malicious PDF — malware analysis report

Static analysis result for SHA-256 3fd5756463ea6858…

MALICIOUS

PDF

44.9 KB Created: 2019-03-17 02:22:57 +03:00 Authoring application: Microsoft Word 8.0 (via Acrobat Distiller 4.0 for Windows)
MD5: 360371dd40ad6afb59cf6a74b008ba83 SHA-1: 8d46c721b3b31c08a568ff540b316dfc4b5ca4de SHA-256: 3fd5756463ea68581fbcaaf72928ce1988816bad87f21a3105d249748864f466
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, primarily hosted on www.gorillawalker.com. This technique is often used for SEO manipulation or to distribute malicious content indirectly. The ML classifier also flagged this PDF as malicious. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8439

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-big-freeze-marvel-little-golden-book.pdf
    • http://www.gorillawalker.com/assessing-attention-deficit-hyperactivity-disorder-topics-in-social-psychiatry.pdf
    • http://www.gorillawalker.com/fauquier-county-in-the-revolution.pdf
    • http://www.gorillawalker.com/spectacles-of-truth-in-classical-greek-philosophy-theoria-in-its.pdf
    • http://www.gorillawalker.com/diane-sawyer.pdf
    • http://www.gorillawalker.com/anyplace-but-here-young-alone-and-homeless-what-to-do.pdf
    • http://www.gorillawalker.com/the-oxford-handbook-of-bioethics-oxford-handbooks-in-philosophy.pdf
    • http://www.gorillawalker.com/marine-wildlife-of-puget-sound-the-san-juans-and-the.pdf
    • http://www.gorillawalker.com/d-day-through-german-eyes-book-2-more-hidden-stories.pdf
    • http://www.gorillawalker.com/seola-kindle-edition.pdf
    • http://www.gorillawalker.com/the-tea-drinker-s-handbook.pdf
    • http://www.gorillawalker.com/romance-seduced-by-the-doctors-sexy-doctor-romance-collection-bisexual.pdf
    • http://www.gorillawalker.com/mines-of-the-gwydyr-forest-pandora-and-other-mines-in.pdf
    • http://www.gorillawalker.com/jewish-festivals-omnibus-living-festivals.pdf
    • http://www.gorillawalker.com/sex-sensibility-reflections-on-forbidden-mirrors-and-the-will-to.pdf
    • http://www.gorillawalker.com/nude-teen-caprice-9-fresh-voluptuous-teen-uncensored-kindle-edition.pdf
    • http://www.gorillawalker.com/the-closed-world-computers-and-the-politics-of-discourse-in.pdf
    • http://www.gorillawalker.com/colorado-trail-databook-colorado-mountain-club-pack-guide.pdf
    • http://www.gorillawalker.com/corporations-and-other-business-enterprises-cases-and-materials-american-casebook.pdf
    • http://www.gorillawalker.com/a-common-man-ikce-wicasa-modern-lakota-spirituality-and-practice.pdf
    • http://www.gorillawalker.com/operation-erdanus-2-14-cavalry-s-zone-recon-of-the.pdf
    • http://www.gorillawalker.com/acting-in-classroom-drama-a-critical-analysis.pdf
    • http://www.gorillawalker.com/age-dependent-changes-in-the-protein-synthetic-activity-of-neuronal.pdf
    • http://www.gorillawalker.com/piano-sonata-no-5-in-c-minor-op-10-no.pdf
    • http://www.gorillawalker.com/tragedy-at-dieppe-operation-jubilee-august-19-1942-kindle-edition.pdf
    • http://www.gorillawalker.com/dynamic-alignment-through-imagery-second-edition-kindle-edition.pdf
    • http://www.gorillawalker.com/tibet-a-brief-history-historyworld-s-pocket-history-series-book.pdf
    • http://www.gorillawalker.com/mad-girl-s-love-song-sylvia-plath-and-life-before.pdf
    • http://www.gorillawalker.com/theory-and-practice-of-family-therapy-and-counseling-sab-230.pdf
    • http://www.gorillawalker.com/the-dosadi-experiment.pdf
    • http://www.gorillawalker.com/business-focused-it-and-service-excellence.pdf
    • http://www.gorillawalker.com/kids-cooking-without-a-stove.pdf
    • http://www.gorillawalker.com/more-group-auto-needed-in-mass-massachusetts-american-mass-marketing.pdf
    • http://www.gorillawalker.com/fodor-s-pocket-madrid-2nd-the-all-in-one-guide.pdf
    • http://www.gorillawalker.com/asteroids-and-comets-science-readers-a-closer-look.pdf
    • http://www.gorillawalker.com/frederick-wiseman.pdf
    • http://www.gorillawalker.com/compounds-with-s-gmelin-handbook-of-inorganic-and-organometallic-chemistry.pdf
    • http://www.gorillawalker.com/labyrinth-greywalker-book-5.pdf
    • http://www.gorillawalker.com/western-astrology-and-chinese-medicine.pdf
    • http://www.gorillawalker.com/tough-cookie-goldy-culinary-mysteries-book-9.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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