Malicious PDF — malware analysis report

Static analysis result for SHA-256 90e362928c986d46…

MALICIOUS

PDF

43.0 KB Created: 2018-12-11 20:30:18 +03:00 Authoring application: Microsoft Word (via Acrobat PDFWriter 3.0f1r8 for Power Macintosh)
MD5: 8e169ddb19be8f8adff86281eac9fdc3 SHA-1: 7a2983c0448dbbca2aa13d01db8f59e6231631a2 SHA-256: 90e362928c986d46c0a42200a2be36394baaf1b08601bfea1976e5e7e4ba752e
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 malicious content. The ML classifier also flagged this PDF as malicious. No scripts were extracted from this sample, and the document body was not parsable. The primary attack pattern observed is the mass linking to external resources.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9181

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/curzio-malaparte-the-narrative-contract-strained.pdf
    • http://www.gorillawalker.com/history-behind-the-blade-gerhard-gottschalk-sword-project-vulcan-puff.pdf
    • http://www.gorillawalker.com/the-gold-ring-jim-fisk-jay-gould-and-black-friday.pdf
    • http://www.gorillawalker.com/herpetofauna-of-armenia-and-nagorno-karabakh-contributions-to-herpetology.pdf
    • http://www.gorillawalker.com/pizza-more-than-60-recipes-for-delicious-homemade-pizza.pdf
    • http://www.gorillawalker.com/exalted-malfeas-the-compass-of-celestial-directions-vol-5.pdf
    • http://www.gorillawalker.com/the-boy-knight-historical-fiction-for-teens-illustrated-edition-a.pdf
    • http://www.gorillawalker.com/dragon-s-prey-shadow-of-the-dragon-book-four.pdf
    • http://www.gorillawalker.com/babysitting-mr-jenkins-dom-sub-older-younger-taboo-forbidden-erotica.pdf
    • http://www.gorillawalker.com/mill.pdf
    • http://www.gorillawalker.com/equine-acupressure-a-working-manual.pdf
    • http://www.gorillawalker.com/edgar-rice-burroughs-collection-novels.pdf
    • http://www.gorillawalker.com/cupcakes.pdf
    • http://www.gorillawalker.com/sounding-the-modern-woman-the-songstress-in-chinese-cinema.pdf
    • http://www.gorillawalker.com/the-repeating-island-the-caribbean-and-the-postmodern-perspective-post.pdf
    • http://www.gorillawalker.com/basic-mathematical-skills-with-geometry.pdf
    • http://www.gorillawalker.com/symphony-no-12-in-e-major-hob-i-12-full.pdf
    • http://www.gorillawalker.com/insight-globe-brass-political-illuminated-insight-globes.pdf
    • http://www.gorillawalker.com/me-against-my-brother-at-war-in-somalia-sudan-and.pdf
    • http://www.gorillawalker.com/a-narrative-of-a-visit-to-the-mauritius-and-south.pdf
    • http://www.gorillawalker.com/failure-analysis-fundamentals-and-applications-in-mechanical-components.pdf
    • http://www.gorillawalker.com/1997-year-book-of-drug-therapy.pdf
    • http://www.gorillawalker.com/practice-the-isee-practice-test-questions-for-the-independent-school.pdf
    • http://www.gorillawalker.com/dolphin-days-the-life-and-times-of-the-spinner-dolphin.pdf
    • http://www.gorillawalker.com/the-iraqi-family-cookbook-hippocrene-cookbook-library.pdf
    • http://www.gorillawalker.com/how-to-pick-up-spares-mini-ebook-kindle-edition.pdf
    • http://www.gorillawalker.com/the-trilisk-ruins-parker-interstellar-travels-book-1-kindle-edition.pdf
    • http://www.gorillawalker.com/richard-owen-victorian-naturalist-practical-guide-series-2.pdf
    • http://www.gorillawalker.com/las-lesiones-del-corredor-running-injuries-tratamiento-y-prevencion-treatment.pdf
    • http://www.gorillawalker.com/lighthouses-black-white-2005-deluxe-wall.pdf
    • http://www.gorillawalker.com/ending-medical-reversal-improving-outcomes-saving-lives.pdf
    • http://www.gorillawalker.com/bugler-s-holiday-bb-trumpet-solo-with-piano-accompaniment.pdf
    • http://www.gorillawalker.com/power-reference-manual-for-the-electrical-and-computer-pe-exam.pdf
    • http://www.gorillawalker.com/secrets-of-los-angeles-a-guidebook-to-the-city-of.pdf
    • http://www.gorillawalker.com/moonsilver-the-unicorn-s-secret-1.pdf
    • http://www.gorillawalker.com/the-science-of-why-decoding-human-motivation-and-transforming-marketing.pdf
    • http://www.gorillawalker.com/bioseparations-downstream-processing-for-biotechnology.pdf
    • http://www.gorillawalker.com/small-trimarans-an-introduction.pdf
    • http://www.gorillawalker.com/android-army-took-me-robot-cyborg-taboo-forbidden-erotica.pdf
    • http://www.gorillawalker.com/the-complete-guide-to-act-reading.pdf
    • http://www.gorillawalker.com/pizza-more-than-60-recipes-for-delicious-homemad
    • 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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