Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e0168c50357ecbf…

MALICIOUS

PDF

43.5 KB Created: 2018-11-30 20:56:21 +03:00 Authoring application: Word (via Acrobat PDFMaker 15 for Word)
MD5: c4c7690ca4d540b9258fc2d918d10bfe SHA-1: b08368ac6ff84b9aad99ffdf6f1f02427293e423 SHA-256: 5e0168c50357ecbf7c57ca62d3242e92aa4efffd3f153e50ab6f6bf91a3bf65b
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The critical heuristic PDF_SEO_LINK_FARM indicates the PDF contains a mass external link farm, pointing to 32 different PDF files on gorillawalker.com. This suggests a tactic to manipulate search engine results or distribute potentially malicious content. The ML classifier also flagged the PDF as malicious with high confidence. No scripts were extracted from this sample.

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/funk-wagnalls-hammond-world-atlas-including-world-history.pdf
    • http://www.gorillawalker.com/las-convulsiones-spanish-edition.pdf
    • http://www.gorillawalker.com/the-school-counselor-s-guide-to-special-education.pdf
    • http://www.gorillawalker.com/the-psychology-of-salesmanship.pdf
    • http://www.gorillawalker.com/russia-ritual-and-reform-the-liturgical-reforms-of-nikon-in.pdf
    • http://www.gorillawalker.com/dreaming-of-dry-land-environmental-transformation-in-colonial-mexico-city.pdf
    • http://www.gorillawalker.com/the-wisdom-of-teams-creating-the-high-performance-organization-collins.pdf
    • http://www.gorillawalker.com/investigating-astronomy-its-about-time.pdf
    • http://www.gorillawalker.com/the-collapse-of-the-roman-republic-world-history-series.pdf
    • http://www.gorillawalker.com/lonely-planet-central-europe-central-europe-4th-ed.pdf
    • http://www.gorillawalker.com/nutrition-diet-therapy-for-nurses-10-by-tucker-sheila-paperback.pdf
    • http://www.gorillawalker.com/arizona-cardinals-2008-wall-calendar.pdf
    • http://www.gorillawalker.com/fastnet-force-10-the-deadliest-storm-in-the-history-of.pdf
    • http://www.gorillawalker.com/christianity-and-monasticism-in-middle-egypt.pdf
    • http://www.gorillawalker.com/tri-omega-mates-volume-2-hidden-desires-stolen-desires-siren.pdf
    • http://www.gorillawalker.com/speak-english-around-town-unabridged-audible-audio-edition.pdf
    • http://www.gorillawalker.com/getting-through-grief-caregiving-by-congregations.pdf
    • http://www.gorillawalker.com/el-efecto-mariposa-en-el-amor-spanish-edition.pdf
    • http://www.gorillawalker.com/organic-synthesis-state-of-the-art-2005-2007.pdf
    • http://www.gorillawalker.com/alleluia-easter-sunrise-letterhead-2016-pkg-of-50.pdf
    • http://www.gorillawalker.com/interpreting-the-republic-marginalization-and-belonging-in-contemporary-french-novels.pdf
    • http://www.gorillawalker.com/mentalization-based-treatment-for-borderline-personality-disorder-a-practical-guide.pdf
    • http://www.gorillawalker.com/lester-the-loyalist-a-romance-of-the-founding-of-canada.pdf
    • http://www.gorillawalker.com/solar-photovoltaic-basics-a-study-guide-for-the-nabcep-entry.pdf
    • http://www.gorillawalker.com/an-introduction-to-formal-logic-kindle-edition.pdf
    • http://www.gorillawalker.com/big-black-bundle-interracial-cuckold-erotica.pdf
    • http://www.gorillawalker.com/instant-word-power-signet.pdf
    • http://www.gorillawalker.com/who-lives-who-dies-who-decides-abortion-neonatal-care-assisted.pdf
    • http://www.gorillawalker.com/moody-gold-gold-series.pdf
    • http://www.gorillawalker.com/operational-risk-management-a-case-study-approach-to-effective-planning.pdf
    • http://www.gorillawalker.com/variations-on-the-song-of-songs.pdf
    • http://www.gorillawalker.com/male-anxiety-and-psychopathology-in-film-comedy-italian-style-italian.pdf
    • http://www.gorillawalker.com/rsmeans-square-foot-costs-2012-means-square-foot-costs.pdf
    • http://www.gorillawalker.com/the-big-bernie-madoff-coloring-and-activity-book.pdf
    • http://www.gorillawalker.com/master-ap-spanish-w-audio-cdrom-4th-ed.pdf
    • http://www.gorillawalker.com/cupids-cherubs-cd-rom-and-book-dover-electronic-clip-art.pdf
    • http://www.gorillawalker.com/project-fatherhood-a-story-of-courage-and-healing-in-one.pdf
    • http://www.gorillawalker.com/the-penny-pincher-prepper-save-more-spend-less-and-get.pdf
    • http://www.gorillawalker.com/chroniken-der-weltensucher-2-der-palast-des-poseidon-german-edition.pdf
    • http://www.gorillawalker.com/ontological-humility-lord-voldemort-and-the-philosophers.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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