Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd60508b5b4945b0…

MALICIOUS

PDF

47.3 KB Created: 2018-11-14 08:19:00 +03:00 Authoring application: QuarkXPress¢â: LaserWriter 8 KH-8.7.1 (via Acrobat Distiller 4.05 for Macintosh)
MD5: b050f60ce3816c486ccc14fc1e60831c SHA-1: ec70f59773c96bd9e317ea1e6d5aa9cafa06cb72 SHA-256: dd60508b5b4945b0e25914044c3f1ad33eb464f6597bf065bb59a2e130489471
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded URLs pointing to external PDF files, as indicated by the PDF_SEO_LINK_FARM heuristic. The ML classifier also flagged this PDF as malicious. The document body is heavily obfuscated and does not provide clear textual lures, but the sheer volume of links suggests a malicious intent, possibly for SEO spam or to distribute malware indirectly. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8868

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/tape-leaders-a-compendium-of-early-british-electronic-music-composers.pdf
    • http://www.gorillawalker.com/realidades-level-1-practice-workbook-with-writing-audio-video-activities.pdf
    • http://www.gorillawalker.com/coffee-with-barbie-r-doll-schiffer-book-for-collectors.pdf
    • http://www.gorillawalker.com/private-international-law-art-and-cultural-heritage.pdf
    • http://www.gorillawalker.com/a-conflict-of-interest-paperback.pdf
    • http://www.gorillawalker.com/audi-tt-2008-2009-repair-manual-on-dvd-rom-windows.pdf
    • http://www.gorillawalker.com/lustiges-taschenbuch-nr-466-phantomime-kehrt-zur-ck-german-edition.pdf
    • http://www.gorillawalker.com/the-biggest-loser-cookbook-your-personal-programme-for-nutritious-delicious.pdf
    • http://www.gorillawalker.com/statistical-physics-statics-dynamics-and-renormalization.pdf
    • http://www.gorillawalker.com/1000-solved-problems-in-fluid-mechanics-includes-hydraulic-machines.pdf
    • http://www.gorillawalker.com/payments-systems-problems-materials-and-cases-teacher-s-manual-american.pdf
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    • http://www.gorillawalker.com/fundamentos-de-musicoterapia-coleccion-nova-scholar-spanish-edition.pdf
    • http://www.gorillawalker.com/the-sochi-project-an-atlas-of-war-and-tourism-in.pdf
    • http://www.gorillawalker.com/self-healing-colitis-crohn-s-3rd-edition.pdf
    • http://www.gorillawalker.com/spontaneous-manifestations-from-zero-tapping-into-the-universal-flow.pdf
    • http://www.gorillawalker.com/contemporary-world-television.pdf
    • http://www.gorillawalker.com/wit-and-humor-of-the-age-comprising-wit-humor-pathos.pdf
    • http://www.gorillawalker.com/biophysics-and-the-challenges-of-emerging-threats-nato-science-for.pdf
    • http://www.gorillawalker.com/dinosaurs-kid-s-book-about-tyrannosaurus-rex-the-king-of.pdf
    • http://www.gorillawalker.com/the-inner-temple-of-witchcraft-magick-meditation-and-psychic-development.pdf
    • http://www.gorillawalker.com/understanding-and-creating-infographics-explorer-library-information-explorer-kindle-edition.pdf
    • http://www.gorillawalker.com/veiled-alex-verus.pdf
    • http://www.gorillawalker.com/the-barefoot-book-of-earth-tales-one-world-one-planet.pdf
    • http://www.gorillawalker.com/submit-to-the-vampire-horrorerotik-book-4.pdf
    • http://www.gorillawalker.com/joseph-conrad-and-the-reader-questioning-modern-theories-of-narrative.pdf
    • http://www.gorillawalker.com/teaching-and-behavior-support-for-children-and-adults-with-autism.pdf
    • http://www.gorillawalker.com/yellowstone.pdf
    • http://www.gorillawalker.com/les-petits-commercants-belges-face-a-la-modernite-1880-1914.pdf
    • http://www.gorillawalker.com/more-low-carb-recipes-fast-easy.pdf
    • http://www.gorillawalker.com/list-of-available-agricultural-economics-publications-from-cornell-university-ithaca.pdf
    • http://www.gorillawalker.com/oxford-reading-tree-treetops-infact-levels-10-11-pack-of.pdf
    • http://www.gorillawalker.com/radar-detectors-are-zapped-as-reason-to-nix-auto-ins.pdf
    • http://www.gorillawalker.com/my-asian-dragon-s-baby-a-bwam-pregnancy-paranormal-romance.pdf
    • http://www.gorillawalker.com/simplify-your-spiritual-life-spiritual-disciplines-for-the-overwhelmed.pdf
    • http://www.gorillawalker.com/chiefs.pdf
    • http://www.gorillawalker.com/business-law-publisher-barron-s-educational-series-5-0-edition.pdf
    • http://www.gorillawalker.com/holt-earth-science-michigan-holt-earth-science-test-preparation-workbook.pdf
    • http://www.gorillawalker.com/private-internationa
    • 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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