Malicious PDF — malware analysis report

Static analysis result for SHA-256 60a005da4dfec6f0…

MALICIOUS

PDF

43.2 KB Created: 2018-12-28 08:18:50 +03:00 Authoring application: Acrobat Distiller 7.0.5 (Windows)
MD5: 2f485dc639377fddfb40e3a2272d9d66 SHA-1: 4a1c4e5b9dc4f9b7cb5ec09e3c667fcb6a2f8a71 SHA-256: 60a005da4dfec6f0fc10da0586efc9f3396997c30cdef39914535a4c5cf7ae1c
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links pointing to external PDF files, a technique often used for SEO manipulation or to distribute further malicious content. The ML classifier also flagged this PDF as malicious. No scripts were extracted from this sample, and the document body was heavily obfuscated.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9171

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/making-space-women-and-the-man-made-environment.pdf
    • http://www.gorillawalker.com/radiation-in-medicine-and-industry-nuclear-radiation-facts-and-figures.pdf
    • http://www.gorillawalker.com/endangered-species-act-boston-harbor-outfall-hearing-before-the-subcommittee.pdf
    • http://www.gorillawalker.com/letting-go-a-marine-s-journey-through-war-and-his.pdf
    • http://www.gorillawalker.com/war-wounds-medicine-and-the-trauma-of-conflict.pdf
    • http://www.gorillawalker.com/basic-and-clinical-immunology-with-student-consult-access-2e.pdf
    • http://www.gorillawalker.com/teaching-children-with-dyslexia-a-practical-guide.pdf
    • http://www.gorillawalker.com/almost-a-girl-male-writers-and-female-identification.pdf
    • http://www.gorillawalker.com/the-biology-and-fisheries-of-the-slipper-lobster-crustacean-issues.pdf
    • http://www.gorillawalker.com/you-too-can-break-into-a-chemical-plant-an-article.pdf
    • http://www.gorillawalker.com/too-friendly-to-date-mills-boon-superromance.pdf
    • http://www.gorillawalker.com/an-african-prayer-book.pdf
    • http://www.gorillawalker.com/teenage-roadhogs-second-edition.pdf
    • http://www.gorillawalker.com/metabolic-syndrome-flags-severity-of-psoriatic-arthritis-psoriasis-an-article.pdf
    • http://www.gorillawalker.com/dead-before-dying.pdf
    • http://www.gorillawalker.com/say-i-do-the-wedding-gift-the-wedding-dance-the.pdf
    • http://www.gorillawalker.com/buddhist-remains-in-andhra-and-the-history-of-andhra-between.pdf
    • http://www.gorillawalker.com/home-style-microwave-cooking.pdf
    • http://www.gorillawalker.com/nazisploitation-the-nazi-image-in-low-brow-cinema-and-culture.pdf
    • http://www.gorillawalker.com/orela-multi-subject-001-002-003-practice-test-2.pdf
    • http://www.gorillawalker.com/some-problems-of-unlikely-intersections-in-arithmetic-and-geometry-am.pdf
    • http://www.gorillawalker.com/the-qualitative-research-experience-research-statistics-program-evaluation.pdf
    • http://www.gorillawalker.com/the-send-code-of-practice-0-25-years-policy-provision.pdf
    • http://www.gorillawalker.com/travels.pdf
    • http://www.gorillawalker.com/the-seniors-guide-to-austin.pdf
    • http://www.gorillawalker.com/the-meaning-of-it-all-allen-lane-history.pdf
    • http://www.gorillawalker.com/david-suzuki-my-life.pdf
    • http://www.gorillawalker.com/small-bunny-s-blue-blanket.pdf
    • http://www.gorillawalker.com/computer-program-construction.pdf
    • http://www.gorillawalker.com/earth-s-weather-water-and-atmosphere-earth-science-2-volume.pdf
    • http://www.gorillawalker.com/deep-down-dark-the-untold-stories-of-33-men-buried.pdf
    • http://www.gorillawalker.com/midwifery-community-based-health-care-during-the-childbearing-year.pdf
    • http://www.gorillawalker.com/laser-chemistry-in-france-a-special-issue-of-the-journal.pdf
    • http://www.gorillawalker.com/celtic-pilgrimages-sites-seasons-and-saints-an-inspiration-for-spiritual.pdf
    • http://www.gorillawalker.com/claus-wilhelm-canaris-bankvertragsrecht-teil-1.pdf
    • http://www.gorillawalker.com/collected-writings-of-john-murray-lectures-in-systematic-theology.pdf
    • http://www.gorillawalker.com/forty-years-of-sport-and-social-change-1968-2008-to.pdf
    • http://www.gorillawalker.com/speech-after-stroke-a-manual-for-the-speech-pathologist-and.pdf
    • http://www.gorillawalker.com/babylonian-religion-and-mythology-vol-4-classic-reprint.pdf
    • http://www.gorillawalker.com/home-wrecker-3.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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