Malicious PDF — malware analysis report

Static analysis result for SHA-256 3d917cbb04379795…

MALICIOUS

PDF

31.3 KB Created: 2019-05-24 00:42:01 +03:00 Authoring application: QuarkXPress: pictwpstops filter 1.0 (via Acrobat Distiller 6.0 for Macintosh)
MD5: d19e81a16df2ec72a7a45415c1db28df SHA-1: 8712dc8abe2dc820b4f914a85370af211337882a SHA-256: 3d917cbb04379795568e9aae3b54a21dd00803dd4b56083d5116131c94003c11
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 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 0.8447

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/numerical-thermal-analysis.pdf
    • http://www.gorillawalker.com/what-to-do-when-your-child-gets-sick-what-to.pdf
    • http://www.gorillawalker.com/art-now-vol-4.pdf
    • http://www.gorillawalker.com/encyclopedia-of-cryptozoology-a-global-guide-to-hidden-animals-and.pdf
    • http://www.gorillawalker.com/ivan-the-hamster-knight.pdf
    • http://www.gorillawalker.com/the-2013-import-and-export-market-for-pins-and-needles.pdf
    • http://www.gorillawalker.com/the-declaration-of-independence-we-the-people-revolution-and-the.pdf
    • http://www.gorillawalker.com/rescuing-history-from-the-nation-questioning-narratives-of-modern-china.pdf
    • http://www.gorillawalker.com/the-noni-revolution.pdf
    • http://www.gorillawalker.com/medical-reimbursement-a-contextualized-method.pdf
    • http://www.gorillawalker.com/pc-magazine-dos-batch-file-lab-notes-book-and-disk.pdf
    • http://www.gorillawalker.com/the-psychology-of-team-sports-sport-management-library.pdf
    • http://www.gorillawalker.com/moving-zen-karate-as-a-way-to-gentleness.pdf
    • http://www.gorillawalker.com/journeys-of-the-muslim-nation-and-the-christian-church-exploring.pdf
    • http://www.gorillawalker.com/cohort-analysis-in-social-research-beyond-the-identification-problem.pdf
    • http://www.gorillawalker.com/fodder-and-pasture-plants.pdf
    • http://www.gorillawalker.com/life-magazine-september-13-1937.pdf
    • http://www.gorillawalker.com/alison-uttley-spinner-of-tales-the-authorised-biography-of-the.pdf
    • http://www.gorillawalker.com/what-can-we-do-about-oil-spills-and-ocean-pollution.pdf
    • http://www.gorillawalker.com/international-foreign-language-guide-for-hotel-employees-course-living-language.pdf
    • http://www.gorillawalker.com/encyclopedic-handbook-of-integrated-optics-optical-science-and-engineering.pdf
    • http://www.gorillawalker.com/structure-and-fate-of-subducting-slabs-advances-in-geophysics.pdf
    • http://www.gorillawalker.com/generations-of-winter.pdf
    • http://www.gorillawalker.com/homemade-body-scrubs-and-masks-50-best-homemade-recipes-for.pdf
    • http://www.gorillawalker.com/profit-leaks-uncovered-kindle-edition.pdf
    • http://www.gorillawalker.com/tears-of-the-giraffe-no-1-ladies-detective-agency.pdf
    • http://www.gorillawalker.com/chinese-vegetarian-delights.pdf
    • http://www.gorillawalker.com/choy-li-fut-kung-fu-the-dynamic-fighting-art-descended.pdf
    • http://www.gorillawalker.com/making-puppets.pdf
    • http://www.gorillawalker.com/garden-gallery-the-plants-art-and-hardscape-of-little-and.pdf
    • http://www.gorillawalker.com/to-hold-the-bridge-tales-from-the-old-kingdom-and.pdf
    • http://www.gorillawalker.com/nature-s-blessing-28-month-planner.pdf
    • http://www.gorillawalker.com/taken-for-granted.pdf
    • http://www.gorillawalker.com/confesso-che-ho-suonato-storieskira-italian-edition-kindle-edition.pdf
    • http://www.gorillawalker.com/how-to-cook-meat.pdf
    • http://www.gorillawalker.com/nature-of-trees-the-2013-wall-calendar.pdf
    • http://www.gorillawalker.com/man-in-the-church-theological-investigations-volume-ii.pdf
    • http://www.gorillawalker.com/his-best-friend-s-girl-in-the-line-of-duty.pdf
    • http://www.gorillawalker.com/memoir-of-a-cold-war-soldier.pdf
    • http://www.gorillawalker.com/preventing-injuries-in-europe-from-international-collaboration-to-local-implementation.pdf
    • http://www.gorillawalker.com/rescuing-history-from-the-nation-questioning-narra
    • 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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