Malicious PDF — malware analysis report

Static analysis result for SHA-256 379573be98cc103e…

MALICIOUS

PDF

42.6 KB Created: 2019-03-17 11:09:56 +03:00 Authoring application: Acrobat PDFMaker 11 for Word (via Acrobat Distiller 11.0 (Windows))
MD5: 9e2498c0e89f986d4c4eccfd0c2cdb13 SHA-1: 0446d72f5724976905120c5c7d22edd1d1e94223 SHA-256: 379573be98cc103e0e25d62ef753d824b6d01de881f3b6e5db08044bc7da415c
90 Risk Score

Malware Insights

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

The PDF file was flagged by an ML classifier as malicious and contains a large number of embedded links to external PDF files hosted on the same domain. This behavior is indicative of a link farm or a SEO poisoning attack, where the goal is to manipulate search engine rankings or direct users to potentially harmful content. No scripts were extracted, and the document body was heavily obfuscated, making it difficult to determine a more specific attack pattern.

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/applied-superconductivity-1999-proceedings-of-the-fourth-european-conference-on.pdf
    • http://www.gorillawalker.com/the-definitive-guide-to-transportation-principles-strategies-and-decisions-for.pdf
    • http://www.gorillawalker.com/thug-notes-the-book-vintage-original-kindle-edition.pdf
    • http://www.gorillawalker.com/begin-smart-153-what-color-is-your-apple.pdf
    • http://www.gorillawalker.com/the-yoga-of-eating-great-and-losing-weight.pdf
    • http://www.gorillawalker.com/the-child-inside.pdf
    • http://www.gorillawalker.com/hours-days-and-years-ripley-s-believe-it-or-not.pdf
    • http://www.gorillawalker.com/my-port-my-sun-my-moon-my-stars.pdf
    • http://www.gorillawalker.com/the-mauser-archive.pdf
    • http://www.gorillawalker.com/the-myth-of-the-common-school.pdf
    • http://www.gorillawalker.com/stud-for-hire-fertile-hotwife-cuckold-bisex-erotica.pdf
    • http://www.gorillawalker.com/the-word-exchange-anglo-saxon-poems-in-translation.pdf
    • http://www.gorillawalker.com/descriptions.pdf
    • http://www.gorillawalker.com/hip-hop-in-a-box.pdf
    • http://www.gorillawalker.com/priscilla-mcdoodlenutdoodlemcmae-asks-why.pdf
    • http://www.gorillawalker.com/zigzagger-stories-latino-voices.pdf
    • http://www.gorillawalker.com/amazing-stories-magazine-issue-no-569.pdf
    • http://www.gorillawalker.com/quantum-mechanics-in-hilbert-space-second-edition-dover-books-on.pdf
    • http://www.gorillawalker.com/fated-connections-book-1.pdf
    • http://www.gorillawalker.com/the-xenophobe-s-guide-to-the-israelis-xenophobe-s-guides.pdf
    • http://www.gorillawalker.com/successful-life-insurance-selling-how-to-prosper-in-the-year.pdf
    • http://www.gorillawalker.com/ready-or-not-dawdle-duckling.pdf
    • http://www.gorillawalker.com/mapping-it-out-expository-cartography-for-the-humanities-and-social.pdf
    • http://www.gorillawalker.com/a-handbook-for-parents-of-teen-drivers.pdf
    • http://www.gorillawalker.com/when-breaks-the-dawn-canadian-west-book-3.pdf
    • http://www.gorillawalker.com/angelwings-contemporary-queer-fiction-from-taiwan.pdf
    • http://www.gorillawalker.com/evangelical-lutheran-church-in-america-2005-yearbook-marked-with-the.pdf
    • http://www.gorillawalker.com/the-world-s-toughest-races-from-the-most-extreme-to.pdf
    • http://www.gorillawalker.com/3-pieces-1926-flute-clarinet-and-bassoon.pdf
    • http://www.gorillawalker.com/our-little-finnish-cousin-the-little-cousin-series.pdf
    • http://www.gorillawalker.com/modern-diplomacy.pdf
    • http://www.gorillawalker.com/the-sans-pareil-mystery-the-detective-lavender-mysteries-book-2.pdf
    • http://www.gorillawalker.com/the-complete-tales-and-poems-of-edgar-allan-poe-with.pdf
    • http://www.gorillawalker.com/the-mediterranean-diet-for-beginners-the-complete-guide-40-delicious.pdf
    • http://www.gorillawalker.com/federal-transfer-taxes-code-and-regulations-with-klein-estate-and.pdf
    • http://www.gorillawalker.com/el-peregrino-en-indias-spanish-edition.pdf
    • http://www.gorillawalker.com/instant-happy-10-second-attitude-makeovers.pdf
    • http://www.gorillawalker.com/good-questions-have-small-groups-talking-2-timothy.pdf
    • http://www.gorillawalker.com/tribology-in-metalworking-friction-lubrication-and-wear.pdf
    • http://www.gorillawalker.com/pain-management-in-rehabilitation.pdf
    • http://www.gorillawalker.com/hours-days-and-years-ripley-s
    • 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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