Malicious PDF — malware analysis report

Static analysis result for SHA-256 12cb2b0f007dc0b5…

MALICIOUS

PDF

43.2 KB Created: 2019-02-13 20:07:45 +03:00 Authoring application: TeX (via dvipdfmx)
MD5: e0f2f7cfb50394f9e0abc6ff1ac8f724 SHA-1: 4b7822b8cf883215646f708ddad9a880c66bfdd0 SHA-256: 12cb2b0f007dc0b51fee4d2efe8fc897f961ab9604c9fd7b624c8a8ff7ad4c43
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, and the document body was heavily obfuscated, preventing a deeper analysis of its specific intent beyond link distribution.

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/eagle-in-exile-the-clash-of-eagles-trilogy-book-ii.pdf
    • http://www.gorillawalker.com/the-case-of-the-missing-marquess-an-enola-holmes-mystery.pdf
    • http://www.gorillawalker.com/you-don-t-have-to-be-perfect-to-follow-jesus.pdf
    • http://www.gorillawalker.com/lunch-lady-and-the-author-visit-vendetta-lunch-lady-3.pdf
    • http://www.gorillawalker.com/tailandi-vietnam.pdf
    • http://www.gorillawalker.com/the-third-lynx-the-quadrail-series-book-2.pdf
    • http://www.gorillawalker.com/lonely-planet-moroccan-arabic-phrasebook-lonely-planet-phrasebook-moroccan-arabic.pdf
    • http://www.gorillawalker.com/city-of-falling-angels.pdf
    • http://www.gorillawalker.com/pro-am-gem-cutting-guide.pdf
    • http://www.gorillawalker.com/on-designing.pdf
    • http://www.gorillawalker.com/china-s-second-wives-the-secret-lives-of-china-s.pdf
    • http://www.gorillawalker.com/the-melting-pot.pdf
    • http://www.gorillawalker.com/my-mother-s-best-friend-part-3.pdf
    • http://www.gorillawalker.com/severe-weather-flying-aopa-mcgraw-hill-series-in-general-aviation.pdf
    • http://www.gorillawalker.com/the-gentleman-s-guide-to-the-nasty-divorce.pdf
    • http://www.gorillawalker.com/the-daguerreotype-nineteenth-century-technology-and-modern-science.pdf
    • http://www.gorillawalker.com/how-to-prevent-your-stroke.pdf
    • http://www.gorillawalker.com/by-lonely-planet-lonely-planet-mauritius-reunion-seychelles-travel-guide.pdf
    • http://www.gorillawalker.com/lao-zi-says-zhongguo-sheng-ren-wen-hua-cong-shu.pdf
    • http://www.gorillawalker.com/after-preservation-saving-american-nature-in-the-age-of-humans.pdf
    • http://www.gorillawalker.com/dominoes-level-1-400-word-vocabulary-pollyanna-dominos-level-1.pdf
    • http://www.gorillawalker.com/habits-webster-s-specialty-crossword-puzzles-volume-2-the-enthusiast.pdf
    • http://www.gorillawalker.com/what-s-your-iq-rate-raise-your-intelligence-with-300.pdf
    • http://www.gorillawalker.com/one-thousand-and-one-nights-vol-11.pdf
    • http://www.gorillawalker.com/sixth-sense-a-psychic-crystal-mystery-book-1.pdf
    • http://www.gorillawalker.com/breath-by-breath-the-liberating-practice-of-insight-meditation-shambhala.pdf
    • http://www.gorillawalker.com/representing-bisexualities-subjects-and-cultures-of-fluid-desire.pdf
    • http://www.gorillawalker.com/pocketradiologist-temporal-bone-top-100-diagnoses-1e.pdf
    • http://www.gorillawalker.com/what-christ-thomas-paine-and-allan-kardec-want-you-to.pdf
    • http://www.gorillawalker.com/sun-yat-sen-his-life-and-its-meaning-a-critical.pdf
    • http://www.gorillawalker.com/polymer-dispersions-and-their-industrial-applications.pdf
    • http://www.gorillawalker.com/perspectives-on-healthy-sexuality-endersbe-julie-perspectives-on-healthy-sexuality.pdf
    • http://www.gorillawalker.com/fundamentals-of-biological-anthropology.pdf
    • http://www.gorillawalker.com/precalculus-discrete-mathematics.pdf
    • http://www.gorillawalker.com/the-shona-peoples-an-ethnography-of-the-contemporary-shona-with.pdf
    • http://www.gorillawalker.com/expression-and-the-inner.pdf
    • http://www.gorillawalker.com/mario-giacomelli-under-the-skin-of-reality-treasures-from-the.pdf
    • http://www.gorillawalker.com/geologic-map-of-the-venezuela-part-of-the-la-esmeralda.pdf
    • http://www.gorillawalker.com/encyclopedia-of-polymer-science-and-technology.pdf
    • http://www.gorillawalker.com/holt-biology-south-carolina-holt-biology-test-preparation-workbook.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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