Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d7567c1f10eacc4…

MALICIOUS

PDF

40.6 KB Created: 2019-03-19 10:57:05 +03:00 Authoring application: DocBook XSL Stylesheets with Apache FOP (via Apache FOP Version 1.1)
MD5: 6967ca401c720911ec382dd65516d709 SHA-1: 48664e995b6f9f2345261bd33920bcb556188fd9 SHA-256: 5d7567c1f10eacc43ce05030f21e75546631d61b9509983ab1a3570fd047749f
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by a machine learning classifier and contains a large number of embedded links to external PDF files, indicating a link farm or distribution mechanism. The primary attack pattern observed is the mass embedding of URLs, likely to direct users to other content or potentially malicious sites. No scripts were extracted, and the document body was heavily obfuscated, limiting further analysis of specific user-facing lures.

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/residential-masterpieces-14-michael-graves.pdf
    • http://www.gorillawalker.com/more-information-than-you-require-unabridged-audible-audio-edition.pdf
    • http://www.gorillawalker.com/moosewood-restaurant-daily-special-more-than-275-recipes-for-soups.pdf
    • http://www.gorillawalker.com/subtraction-flash-kids-flash-cards.pdf
    • http://www.gorillawalker.com/identity-thief-exposing-satan-s-plan-to-steal-your-purpose.pdf
    • http://www.gorillawalker.com/architecture-animal-human-the-asymmetrical-condition.pdf
    • http://www.gorillawalker.com/advances-in-the-study-of-behavior-volume-41.pdf
    • http://www.gorillawalker.com/the-national-geographic-magazine-june-1941.pdf
    • http://www.gorillawalker.com/red-ted-and-the-lost-things.pdf
    • http://www.gorillawalker.com/my-life-queen-of-the-court.pdf
    • http://www.gorillawalker.com/six-legged-soldiers-using-insects-as-weapons-of-war.pdf
    • http://www.gorillawalker.com/opposing-sides-book-1-university-park-volume-1.pdf
    • http://www.gorillawalker.com/baltic-mission-7-a-nathaniel-drinkwater-novel-mariners-library-fiction.pdf
    • http://www.gorillawalker.com/wettbewerbs-und-werberecht-medienrecht-praxishandbuch-german-edition.pdf
    • http://www.gorillawalker.com/identity-theft-cybersafety.pdf
    • http://www.gorillawalker.com/a-companion-to-the-orchestra.pdf
    • http://www.gorillawalker.com/ubu-full-text-and-introduction-nhb-drama-classics-kindle-edition.pdf
    • http://www.gorillawalker.com/magic-lantern-guides-canon-eos-rebel-t2-eos-rebel-k2.pdf
    • http://www.gorillawalker.com/30-beaglebone-black-projects-for-the-evil-genius.pdf
    • http://www.gorillawalker.com/constitutional-law-and-criminal-justice-digital.pdf
    • http://www.gorillawalker.com/studies-in-human-time.pdf
    • http://www.gorillawalker.com/guide-to-latex-4th-edition-kindle-edition.pdf
    • http://www.gorillawalker.com/millimeter-wave-microstrip-and-printed-circuit-antennas-artech-house-antenna.pdf
    • http://www.gorillawalker.com/catalogue-of-the-library-fell-and-rock-climbing-club-of.pdf
    • http://www.gorillawalker.com/the-seven-deadly-boxing-combinations-and-how-to-use-them.pdf
    • http://www.gorillawalker.com/mycomplab-with-pearson-etext-standalone-access-card-for-the-little.pdf
    • http://www.gorillawalker.com/american-eldritch-volume-1.pdf
    • http://www.gorillawalker.com/sos-secrets-of-opening-surprises-volume-9.pdf
    • http://www.gorillawalker.com/automotive-industry-to-implement-iso-ts16949-2002-practice-paperback.pdf
    • http://www.gorillawalker.com/philip-s-stargazing-with-binoculars.pdf
    • http://www.gorillawalker.com/fort-bridger-images-of-america-arcadia-publishing.pdf
    • http://www.gorillawalker.com/dyslexia-a-multidisciplinary-approach.pdf
    • http://www.gorillawalker.com/fighting-satan-knowing-his-weaknesses-strategies-and-defeat.pdf
    • http://www.gorillawalker.com/travelers-market-wolfproof-trilogy.pdf
    • http://www.gorillawalker.com/dido-reina-de-cartago-spanish-edition.pdf
    • http://www.gorillawalker.com/the-big-burn-silhouette-bombshell.pdf
    • http://www.gorillawalker.com/corporate-tax-all-real-training.pdf
    • http://www.gorillawalker.com/city-resilience-critical-concepts-in-built-environment.pdf
    • http://www.gorillawalker.com/writing-between-the-lines-composition-in-the-social-sciences.pdf
    • http://www.gorillawalker.com/the-bridge-of-silver-wings.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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