Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d67bebeb1ba01fc…

MALICIOUS

PDF

43.1 KB Created: 2018-12-03 17:05:08 +03:00 Authoring application: PScript5.dll Version 5.2.2 (via Acrobat Distiller 11.0 (Windows))
MD5: cbb94d98ed942101853107940eb8450a SHA-1: ad3ceb5de3402209fb1e1936ff00e1f8a6096175 SHA-256: 6d67bebeb1ba01fcb596ad7703695cbc98d6182abab7fb3380752b92a649d0ff
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, primarily hosted on 'gorillawalker.com'. This suggests a link farm or a method to direct users to potentially malicious content disguised as legitimate documents. The ML classifier also flagged this PDF as malicious, supporting the suspicious nature of the link farm.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9181

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/modern-small-arms-illustrated-encyclopaedia-of-famous-military-firearms-from.pdf
    • http://www.gorillawalker.com/jane-austen-classic-bbc-radio-full-cast-drama.pdf
    • http://www.gorillawalker.com/minecraft-secrets.pdf
    • http://www.gorillawalker.com/massenpsychologie-und-ich-analyse-german-edition.pdf
    • http://www.gorillawalker.com/jesus-is-every-thing-i-need-challenging-bible-activities-on.pdf
    • http://www.gorillawalker.com/ohio-public-contract-law-hardcover.pdf
    • http://www.gorillawalker.com/musculoskeletal-and-congenital-deformities-atlas-of-the-newborn-v-2.pdf
    • http://www.gorillawalker.com/the-ten-original-systems-of-yoga.pdf
    • http://www.gorillawalker.com/members-of-one-body-prophets-priests-and-kings-an-ecclesiology.pdf
    • http://www.gorillawalker.com/mortal-arts-a-lady-darby-mystery.pdf
    • http://www.gorillawalker.com/patmos-speaks-today-understanding-the-new-testament.pdf
    • http://www.gorillawalker.com/california-rules-of-court-federal-district-courts-2011-ed-vol.pdf
    • http://www.gorillawalker.com/cravings-a-catholic-wrestles-with-food-self-image-and-god.pdf
    • http://www.gorillawalker.com/we-own-the-night-way-of-the-vampire-kindle-edition.pdf
    • http://www.gorillawalker.com/the-business-of-athletic-training.pdf
    • http://www.gorillawalker.com/drawing-realistic-textures-in-pencil-edition-1st-by-j-d.pdf
    • http://www.gorillawalker.com/mother-courage-and-her-children-adapted-by-david-hare.pdf
    • http://www.gorillawalker.com/phonics-made-plain-wall-chart-and-flashcards.pdf
    • http://www.gorillawalker.com/a-confidence-carol-kindle-edition.pdf
    • http://www.gorillawalker.com/bromine-elements.pdf
    • http://www.gorillawalker.com/elementary-and-intermediate-algebra-graphs-and-models-vol-1-custom.pdf
    • http://www.gorillawalker.com/snow-in-july.pdf
    • http://www.gorillawalker.com/own-province-travel-the-south-coast-issue-2-korean-edition.pdf
    • http://www.gorillawalker.com/the-small-business-start-up-kit-for-california.pdf
    • http://www.gorillawalker.com/als-ich-dich-fand-german-edition.pdf
    • http://www.gorillawalker.com/engineering-geology-for-civil-engineers.pdf
    • http://www.gorillawalker.com/when-is-no-treatment-best-for-prostate-cancer-active-surveillance.pdf
    • http://www.gorillawalker.com/junior-encyclopedia-scientific-discoveries.pdf
    • http://www.gorillawalker.com/contemporary-class-piano-5th-edition.pdf
    • http://www.gorillawalker.com/the-official-guide-for-gmat-review-2016-with-online-question.pdf
    • http://www.gorillawalker.com/history-of-the-31st-canadian-infantry-battalion-c-e-f.pdf
    • http://www.gorillawalker.com/tappan-s-handbook-of-massage-therapy-blending-art-with-science.pdf
    • http://www.gorillawalker.com/homological-algebra-pms-19.pdf
    • http://www.gorillawalker.com/how-to-draw-sea-creatures-pbk-paperback.pdf
    • http://www.gorillawalker.com/golf-basics-a-pyramid-sport-paperback.pdf
    • http://www.gorillawalker.com/susan-mallery-fool-s-gold-series-volume-three-almost-summer.pdf
    • http://www.gorillawalker.com/traveling-to-america-discover-the-top-3-places-you-must.pdf
    • http://www.gorillawalker.com/supercritical-fluid-extraction-technology-applications-and-limitations-materials-science-and.pdf
    • http://www.gorillawalker.com/horse-tamer-s-bride-the.pdf
    • http://www.gorillawalker.com/blood-type-a-food-beverage-and-supplemental-lists-kindle-edition.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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