Malicious PDF — malware analysis report

Static analysis result for SHA-256 f0263cfecabed050…

MALICIOUS

PDF

32.4 KB Created: 2020-02-19 09:55:32 +03:00 Authoring application: DocBook XSL Stylesheets with Apache FOP (via Apache FOP Version 1.1)
MD5: c776fdefd908447de59a160ca0be3aec SHA-1: 604fdaa1c5ddce3d6ea93095e09d5f7d4cb1286e SHA-256: f0263cfecabed05020e268d52cf6077a2c3ca9ff84bb194e894ca3166850ffb6
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links 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 from this sample, and the document body was heavily obfuscated, limiting further analysis of the specific lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8529

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/circleforks-kindle-edition.pdf
    • http://www.gorillawalker.com/the-queen-ava-in-spankingland-6-finale.pdf
    • http://www.gorillawalker.com/complete-flat-stomach-plan.pdf
    • http://www.gorillawalker.com/forbidden-fruit-taboo-bundle-older-man-younger-woman-3-pack.pdf
    • http://www.gorillawalker.com/hojoki-visions-of-a-torn-world-rock-spring-collection-of.pdf
    • http://www.gorillawalker.com/cultural-psychology-and-psychoanalysis-pathways-to-synthesis-advances-in-cultural.pdf
    • http://www.gorillawalker.com/yoga-for-pregnancy-and-birth-teach-yourself-teach-yourself-general.pdf
    • http://www.gorillawalker.com/biology-brain-and-behaviour-degeneration-damage-and-disorder-course-sd206.pdf
    • http://www.gorillawalker.com/the-sweetest-thing-just-desserts.pdf
    • http://www.gorillawalker.com/century.pdf
    • http://www.gorillawalker.com/network-marketing-for-christians.pdf
    • http://www.gorillawalker.com/after-the-darkest-hour-how-suffering-begins-the-journey-to.pdf
    • http://www.gorillawalker.com/sea-kayaking-in-nova-scotia-2-revised-edition-by-cunningham.pdf
    • http://www.gorillawalker.com/i-can-get-hepatitis-b-korean-language-edition.pdf
    • http://www.gorillawalker.com/chinese-migrants-and-internationalism-forgotten-histories-1917-1945-chinese-worlds.pdf
    • http://www.gorillawalker.com/the-pop-up-rumble-in-the-jungle.pdf
    • http://www.gorillawalker.com/deported-a-history-of-forced-departures-from-australia.pdf
    • http://www.gorillawalker.com/whim.pdf
    • http://www.gorillawalker.com/chinese-vegetarian-recipes.pdf
    • http://www.gorillawalker.com/the-usborne-first-thousand-words-in-french-first-picture-book.pdf
    • http://www.gorillawalker.com/the-oxford-handbook-of-english-prose-1500-1640-oxford-handbooks.pdf
    • http://www.gorillawalker.com/fabulous-orients-fictions-of-the-east-in-england-1662-1785.pdf
    • http://www.gorillawalker.com/detox-diet-plan-7-days-for-full-body-detoxification-discover.pdf
    • http://www.gorillawalker.com/the-paradoxes-of-the-american-presidency.pdf
    • http://www.gorillawalker.com/the-how-to-win-trial-manual-4th-edition-kindle-edition.pdf
    • http://www.gorillawalker.com/a-student-handbook-to-the-plays-of-tennessee-williams-the.pdf
    • http://www.gorillawalker.com/juicing-fasting-and-detoxing-for-life-unleash-the-healing-power.pdf
    • http://www.gorillawalker.com/quick-and-easy-microwave-cooking-for-one-kindle-edition.pdf
    • http://www.gorillawalker.com/prayers-at-night-approaching.pdf
    • http://www.gorillawalker.com/the-thomas-guide-streets-of-fresno-clovis-fresno-county-cities.pdf
    • http://www.gorillawalker.com/introduction-to-hodge-theory.pdf
    • http://www.gorillawalker.com/manual-of-nuclear-instrumentation-for-training-medicine-reactors-industry-monitoring.pdf
    • http://www.gorillawalker.com/the-lungs-and-breathing-exploring-the-human-body.pdf
    • http://www.gorillawalker.com/the-sling-5-stones-to-make-every-man-a-giant.pdf
    • http://www.gorillawalker.com/women-in-politics-and-public-decision-making.pdf
    • http://www.gorillawalker.com/leigh-bowery-looks-photographs-by-fergus-greer-1988-1994.pdf
    • http://www.gorillawalker.com/the-loving-god.pdf
    • http://www.gorillawalker.com/unfolding-the-unconscious-psyche-pathways-to-the-arts.pdf
    • http://www.gorillawalker.com/great-american-thoroughbred-racetracks.pdf
    • http://www.gorillawalker.com/winter-of-the-wolf-the-wild-hunt-legacy-volume-2.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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