Malicious PDF — malware analysis report

Static analysis result for SHA-256 4a3abc643f3bbf91…

MALICIOUS

PDF

46.2 KB Created: 2018-11-14 11:30:58 +03:00 Authoring application: dvipsk 5.58f Copyright 1986, 1994 Radical Eye Software (via Acrobat Distiller 3.0 f r Macintosh)
MD5: aba8a781ae506478c075b8966af7c2d7 SHA-1: 01a77f139a57f02a49a503a66fe5614a3e5c7a16 SHA-256: 4a3abc643f3bbf91fbc4b384fc191378fbe9b98d1266359603ae6bb3887dee1a
90 Risk Score

Malware Insights

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

The PDF document was flagged by a machine learning classifier and contains a large number of external links, identified as a PDF SEO link farm. The primary intent appears to be directing users to a multitude of PDF files hosted on www.gorillawalker.com. No scripts were extracted from this sample, and the document body was not parsable.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8634

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/dominando-los-habitos-de-rockefeller-mastering-the-rockefeller-habits-spanish.pdf
    • http://www.gorillawalker.com/07-ghost-vol-2.pdf
    • http://www.gorillawalker.com/dictionnaire-de-mythologie-et-de-symbolique-grecque-french-edition.pdf
    • http://www.gorillawalker.com/opening-men-s-eyes-peter-brown-and-the-liberal-struggle.pdf
    • http://www.gorillawalker.com/developing-dictionary-skills-in-german.pdf
    • http://www.gorillawalker.com/interpreting-engineering-drawings-drafting-and-design-print-replica-kindle-edition.pdf
    • http://www.gorillawalker.com/classic-catfish-from-the-crown-at-the-antique-mall.pdf
    • http://www.gorillawalker.com/legal-reasoning-and-legal-writing-structure-strategy-and-style.pdf
    • http://www.gorillawalker.com/steely-dan-guitar-signature-licks-cd-pkg.pdf
    • http://www.gorillawalker.com/hispanic-magazine-fonseca-sound-scapes-the-music-issue-salsa-spectacular.pdf
    • http://www.gorillawalker.com/philosophy-and-blade-runner.pdf
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    • http://www.gorillawalker.com/stimulation-treatment-handbook-an-engineer-s-guide-to-quality-control.pdf
    • http://www.gorillawalker.com/the-chessboard-queen-a-story-of-guinevere.pdf
    • http://www.gorillawalker.com/root-cause-analysis-handbook-a-guide-to-efficient-and-effective.pdf
    • http://www.gorillawalker.com/rhodes-and-the-dodecanese-blue-guides.pdf
    • http://www.gorillawalker.com/data-driven-decisions-and-school-leadership.pdf
    • http://www.gorillawalker.com/billy-baxter-at-the-airport.pdf
    • http://www.gorillawalker.com/prisons-and-the-problem-of-order-clarendon-studies-in-criminology.pdf
    • http://www.gorillawalker.com/complete-mathematics-for-cambridge-secondary-1-student-book-3-for.pdf
    • http://www.gorillawalker.com/bollywood-70-designs-to-help-you-de-stress-colouring-for.pdf
    • http://www.gorillawalker.com/new-york-can-now-retaliate-for-accreditation-penalties-legislation-to.pdf
    • http://www.gorillawalker.com/iec-60335-2-64-ed-3-0-en-2002-household.pdf
    • http://www.gorillawalker.com/arabic-english-arabic-translation-issues-and-strategies.pdf
    • http://www.gorillawalker.com/tourism-and-development-sage-library-of-tourism-hospitality-leisure.pdf
    • http://www.gorillawalker.com/blood-bound-a-mercy-thompson-novel.pdf
    • http://www.gorillawalker.com/reckless-wrecked-volume-2.pdf
    • http://www.gorillawalker.com/20-modern-studies-for-solo-saxophone.pdf
    • http://www.gorillawalker.com/hiking-utah-s-summits-regional-hiking-series.pdf
    • http://www.gorillawalker.com/reforming-the-muslim-world.pdf
    • http://www.gorillawalker.com/seas-and-oceans-board-game-kid-kit-box-seas-and.pdf
    • http://www.gorillawalker.com/microbiology-for-the-health-sciences-seventh-edition-7th-edition.pdf
    • http://www.gorillawalker.com/gateways-to-democracy-an-introduction-to-american-government-the-essentials.pdf
    • http://www.gorillawalker.com/the-catholics-next-door-adventures-in-imperfect-living.pdf
    • http://www.gorillawalker.com/the-middle-place.pdf
    • http://www.gorillawalker.com/how-to-start-a-business-in-texas-forms-and-instructions.pdf
    • http://www.gorillawalker.com/exercise-beats-arthritis-an-easy-to-follow-program-of-exercises.pdf
    • http://www.gorillawalker.com/lega
    • 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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