Malicious PDF — malware analysis report

Static analysis result for SHA-256 23ab2287fc43e193…

MALICIOUS

PDF

43.2 KB Created: 2018-11-26 20:09:06 +03:00 Authoring application: Adobe PageMaker 7.0 (via Acrobat Distiller 5.0.5 for Macintosh)
MD5: c5db6f447a4f7dacdb3ca4b934156314 SHA-1: 46d397fcb0318766b412c8366b158e25e91c90a9 SHA-256: 23ab2287fc43e193c5a209f3a72447f351a8a2fc26765874b8125b2631995d75
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 pointing to external PDF files, primarily hosted on www.gorillawalker.com. This technique is often used to obscure malicious intent or to distribute further content. The ML classifier also flagged this PDF as malicious with a high score. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8859

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/the-complete-field-guide-to-ensuring-quality-geosynthetics-installations-volume.pdf
    • http://www.gorillawalker.com/passerine-migration-stopovers-and-flight.pdf
    • http://www.gorillawalker.com/political-ideas-unabridged-audible-audio-edition.pdf
    • http://www.gorillawalker.com/raw-foods-on-a-budget-the-ultimate-program-and-workbook.pdf
    • http://www.gorillawalker.com/artefacts-paperback.pdf
    • http://www.gorillawalker.com/the-jewish-travelers-resource-guide-2004.pdf
    • http://www.gorillawalker.com/noisy-truck-book.pdf
    • http://www.gorillawalker.com/advanced-microsystems-for-automotive-applications-2001-vdi-buch.pdf
    • http://www.gorillawalker.com/get-a-good-night-s-sleep.pdf
    • http://www.gorillawalker.com/going-to-college-expanding-opportunities-for-people-with-disabilities-v.pdf
    • http://www.gorillawalker.com/romans-exposition-of-chapter-13-life-in-two-kingdoms-romans.pdf
    • http://www.gorillawalker.com/recipes-for-how-to-make-homemade-baby-food-kindle-edition.pdf
    • http://www.gorillawalker.com/step-forward-3-language-for-everyday-life-student-book.pdf
    • http://www.gorillawalker.com/aia-american-institute-of-architects-journal-june-1975-topics-solar.pdf
    • http://www.gorillawalker.com/the-black-book-of-marketing-secrets-vol-18.pdf
    • http://www.gorillawalker.com/toxicological-evaluations-2-v-2.pdf
    • http://www.gorillawalker.com/get-strong-at-life-and-death-get-strong-at-go.pdf
    • http://www.gorillawalker.com/transcultural-german-studies-deutsch-als-fremdsprache-building-bridges-br-cken.pdf
    • http://www.gorillawalker.com/the-last-president.pdf
    • http://www.gorillawalker.com/a-pregnancy-a-party-a-proposal-harlequin-romance-large-print.pdf
    • http://www.gorillawalker.com/memories-of-world-war-ii-and-its-aftermath-by-a.pdf
    • http://www.gorillawalker.com/maximized-manhood-workbook-a-guide-to-family-survival-majoring-in.pdf
    • http://www.gorillawalker.com/disney-pixar-character-encyclopedia.pdf
    • http://www.gorillawalker.com/battle-chasers-1998-series-1-variant.pdf
    • http://www.gorillawalker.com/the-anchor-us-naval-training-center-san-diego-company-1956.pdf
    • http://www.gorillawalker.com/domestic-animal-behavior-causes-and-implications-for-animal-care-and.pdf
    • http://www.gorillawalker.com/mercury-our-universe-lerner-hardcover.pdf
    • http://www.gorillawalker.com/understanding-the-human-body-the-respiratory-system.pdf
    • http://www.gorillawalker.com/atlas-of-venus.pdf
    • http://www.gorillawalker.com/generals-die-in-bed-a-story-from-the-trenches.pdf
    • http://www.gorillawalker.com/applications-of-discrete-time-markov-chains-and-poisson-processes-to.pdf
    • http://www.gorillawalker.com/menstrual-leave-the-birth-the-library-s-blue-arch-japanese.pdf
    • http://www.gorillawalker.com/murder-of-a-creped-suzette-center-point-premier-mystery-large.pdf
    • http://www.gorillawalker.com/game-without-end-state-terror-and-the-politics-of-justice.pdf
    • http://www.gorillawalker.com/chopin-mazurka-op-30-no-3-instantly-download-and-print.pdf
    • http://www.gorillawalker.com/vamped-a-novel-kindle-edition.pdf
    • http://www.gorillawalker.com/17-super-christmas-hits-viola.pdf
    • http://www.gorillawalker.com/robert-schultz-drawings-1990-2007.pdf
    • http://www.gorillawalker.com/album-militar-de-chile-1810-1879-volume-3-primary-source.pdf
    • http://www.gorillawalker.com/a-book-of-the-beginnings-2-volume-set.pdf
    • http://www.gorillawalker
    • 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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