Malicious PDF — malware analysis report

Static analysis result for SHA-256 a1ef2a6e5f500f98…

MALICIOUS

PDF

43.8 KB Created: 2018-12-15 08:54:00 +03:00 Authoring application: Pdf995 (via GNU Ghostscript 7.05)
MD5: c0cfcbfbad8bd2358e07714babbd838c SHA-1: 58753da1c7498f89d38ae43ad8accc318d9647bf SHA-256: a1ef2a6e5f500f98e97b9f11f73cf0d77f9b367349eda42e854b725851ae8492
90 Risk Score

Malware Insights

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

The PDF was flagged by a machine learning classifier and contains a large number of embedded URLs pointing to external PDF files. This behavior is consistent with a link farm, potentially used for SEO manipulation or to distribute further malicious content. The primary attack pattern involves luring users to click on these links, which could lead to various threats depending on the content of the linked PDFs.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8439

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-man-who-invented-the-game-of-basketball-the-genius.pdf
    • http://www.gorillawalker.com/12-steps-to-career-freedom-book-2-a-necessary-career.pdf
    • http://www.gorillawalker.com/pay-no-taxes-in-retirement-learn-how-to-avoid-taxes.pdf
    • http://www.gorillawalker.com/making-political-geography.pdf
    • http://www.gorillawalker.com/introduction-to-forest-ecosystem-science-and-management-hardcover-2002-3.pdf
    • http://www.gorillawalker.com/presence-overwhelmed-with-god-dvd-leader-kit-platform.pdf
    • http://www.gorillawalker.com/driving-force-edge-football-star-power.pdf
    • http://www.gorillawalker.com/the-forex-millionaire-bust-through-the-broker-s-lies-take.pdf
    • http://www.gorillawalker.com/po-lietuva.pdf
    • http://www.gorillawalker.com/divergence-book-4-in-the-witch-s-inheritance-series-kindle.pdf
    • http://www.gorillawalker.com/no-sex-in-the-city.pdf
    • http://www.gorillawalker.com/alzheimer-una-experiencia-humana.pdf
    • http://www.gorillawalker.com/mating-his-nightmare-paranormal-wars-stone-haven-5-siren-publishing.pdf
    • http://www.gorillawalker.com/the-pin-up-art-of-bill-ward.pdf
    • http://www.gorillawalker.com/sunshine-picklelime.pdf
    • http://www.gorillawalker.com/marhaba-your-dubai-guide-visitors-tourists-jobseekers-new-to-dubai.pdf
    • http://www.gorillawalker.com/back-and-forth-the-way-things-move.pdf
    • http://www.gorillawalker.com/american-first-ladies-their-lives-and-their-legacy-special-reference.pdf
    • http://www.gorillawalker.com/ornaments-patterns-for-interior-decoration.pdf
    • http://www.gorillawalker.com/current-directions-in-community-psychology-for-community-psychology.pdf
    • http://www.gorillawalker.com/transference-countertransference-chiron-clinical-series.pdf
    • http://www.gorillawalker.com/still-life-in-tone-and-colour-paint-with-pete-let.pdf
    • http://www.gorillawalker.com/a-story-of-ambivalent-modernization-in-bangladesh-and-west-bengal.pdf
    • http://www.gorillawalker.com/parties-and-politcal-change-in-bolivia-1880-1952-cambridge-latin.pdf
    • http://www.gorillawalker.com/remedios-caseros-para-la-migra-a-o-jaqueca-y-la.pdf
    • http://www.gorillawalker.com/new-mystudentsuccesslab-with-pearson-etext-standalone-access-card-for-the.pdf
    • http://www.gorillawalker.com/jimi-me.pdf
    • http://www.gorillawalker.com/the-forty-eight-preludes-and-fugues-of-j-s-bach.pdf
    • http://www.gorillawalker.com/the-sage-handbook-of-workplace-learning.pdf
    • http://www.gorillawalker.com/jenny-craig-let-s-get-walking-2-audio-cassette-tapes.pdf
    • http://www.gorillawalker.com/selected-commercial-statutes-for-payment-systems-courses-2012.pdf
    • http://www.gorillawalker.com/pesticide-residues-in-food-2012-fao-who-meeting-on-pesticides.pdf
    • http://www.gorillawalker.com/bones-of-skeleton-creek-morning-mist-of-blood-paranormal-cowboy.pdf
    • http://www.gorillawalker.com/divorce-law-reform-in-england-contemporary-issues-series-8.pdf
    • http://www.gorillawalker.com/micro-nanorobotic-manipulation-systems-and-their-applications.pdf
    • http://www.gorillawalker.com/the-abcs-of-group-visits-an-implementation-manual-for-your.pdf
    • http://www.gorillawalker.com/cooking-dirty-life-love-and-death-in-the-kitchen.pdf
    • http://www.gorillawalker.com/instant-magic.pdf
    • http://www.gorillawalker.com/teenage-mutant-ninja-turtles-and-other-strangeness.pdf
    • http://www.gorillawalker.com/i-m-a-teenager-what-happened-to-my-rights.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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