Malicious PDF — malware analysis report

Static analysis result for SHA-256 2254720b8a64acac…

MALICIOUS

PDF

31.9 KB Created: 2020-02-21 02:37:53 +03:00 Authoring application: QuarkXPress(tm) 6.1
MD5: 4998a46f7c5b1898253ca4eb129c4012 SHA-1: 6133c32ca89e5b89b06a387f1d9d41536db2f3e4 SHA-256: 2254720b8a64acac2eb77ebbb65dd7cf002b14edd3b57833500dacbfecd23b67
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, 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, and the document body was heavily obfuscated, preventing a more detailed analysis of the specific lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8447

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/play-directors-survival-kit-a-complete-step-by-step-guide.pdf
    • http://www.gorillawalker.com/a-storybook-life.pdf
    • http://www.gorillawalker.com/que-es-el-six-sigma-esbelto-what-is-lean-six.pdf
    • http://www.gorillawalker.com/trophees-poesie-gallimard-french-edition.pdf
    • http://www.gorillawalker.com/eureka-it-s-an-automobile-inventing.pdf
    • http://www.gorillawalker.com/tommyland.pdf
    • http://www.gorillawalker.com/descriptive-geometry-9th-edition.pdf
    • http://www.gorillawalker.com/mountain-biking-moab-a-guide-to-moab-s-greatest-off.pdf
    • http://www.gorillawalker.com/chagall-art-f-child-art-for-children-chelsea-house.pdf
    • http://www.gorillawalker.com/to-be-young-gifted-and-black-signet-classics.pdf
    • http://www.gorillawalker.com/buses-yearbook-1999.pdf
    • http://www.gorillawalker.com/evidence-based-reading-grade-2-applying-the-standards.pdf
    • http://www.gorillawalker.com/iso-1721-1974-rock-drilling-extension-drill-steel-equipment-for.pdf
    • http://www.gorillawalker.com/dinosaurs-eyes-on-nature-series.pdf
    • http://www.gorillawalker.com/beginning-blues-bass-w-dvd.pdf
    • http://www.gorillawalker.com/king-james-bible-word-search-romans-120-word-search-puzzles.pdf
    • http://www.gorillawalker.com/children-animals-exploring-the-roots-of-kindness-cruelty.pdf
    • http://www.gorillawalker.com/my-mother-my-son.pdf
    • http://www.gorillawalker.com/the-secrets-of-the-eternal-book-the-meaning-of-the.pdf
    • http://www.gorillawalker.com/crime-and-everyday-life.pdf
    • http://www.gorillawalker.com/maurice-a-novel.pdf
    • http://www.gorillawalker.com/the-rambo-family-tree-volume-1-some-descendants-of-gunnar.pdf
    • http://www.gorillawalker.com/the-national-interest-in-a-global-era-australia-in-world.pdf
    • http://www.gorillawalker.com/371-harmonized-chorales-and-69-chorale-melodies-with-figured-bass.pdf
    • http://www.gorillawalker.com/ishtar-rising-or-why-the-goddess-went-to-hell-and.pdf
    • http://www.gorillawalker.com/towards-relational-sociology-international-library-of-sociology.pdf
    • http://www.gorillawalker.com/the-essential-elements-of-public-speaking-5th-edition-mycommunicationlab.pdf
    • http://www.gorillawalker.com/babylon-a-call-to-arms-rules-supplement-3-babylon-5.pdf
    • http://www.gorillawalker.com/sense-of-wonder.pdf
    • http://www.gorillawalker.com/you-re-gonna-love-me-a-performer-s-journal.pdf
    • http://www.gorillawalker.com/vegan-raw-food-cookbook-50-amazing-raw-food-recipes-for.pdf
    • http://www.gorillawalker.com/the-elgar-companion-to-health-economics-second-edition-elgar-original.pdf
    • http://www.gorillawalker.com/tales-of-virtue-a-book-of-right-and-wrong-the.pdf
    • http://www.gorillawalker.com/die-familie-selicke-german-edition.pdf
    • http://www.gorillawalker.com/the-lucent-library-of-science-and-technology-ebook-collection.pdf
    • http://www.gorillawalker.com/human-motivation-with-infotrac-1-semester-printed-access-card.pdf
    • http://www.gorillawalker.com/the-real-time-enterprise-competing-on-time-with-the-revolutionary.pdf
    • http://www.gorillawalker.com/bayesian-econometric-methods-econometric-exercises.pdf
    • http://www.gorillawalker.com/ghetto-gangster-hot-interracial-bm-ww-caught-black-gangsta-in.pdf
    • http://www.gorillawalker.com/welding-inspection-technology-workbook.pdf
    • http://www.gorillawalker.com/king-james-bible-word-search-romans-120-word-sear
    • 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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