Malicious PDF — malware analysis report

Static analysis result for SHA-256 d981a7921833fdcc…

MALICIOUS

PDF

41.9 KB Created: 2018-11-26 20:05:35 +03:00 Authoring application: Acrobat PDFMaker 9.1 для Word (via Adobe PDF Library 9.0)
MD5: cd53a9fd1412861156be96a1b39d841e SHA-1: cc98cc2bbc2720797d9c2249e44b32391518a71e SHA-256: d981a7921833fdcce9156f600c9ddf5e9fe17095eeae6b4cc3b39faed2d4b164
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

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, 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 0.8872

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/el-nombre-de-la-rosa-narrativa-actual.pdf
    • http://www.gorillawalker.com/superalloys-ii.pdf
    • http://www.gorillawalker.com/leaves-of-chestnut-ridge.pdf
    • http://www.gorillawalker.com/liberal-democracy-and-its-critics-in-africa-political-dysfunction-and.pdf
    • http://www.gorillawalker.com/marilyn-s-monster.pdf
    • http://www.gorillawalker.com/the-iceman-s-meltdown-heads-or-tails.pdf
    • http://www.gorillawalker.com/number-theory-an-introduction-to-mathematics-part-b.pdf
    • http://www.gorillawalker.com/robert-goddard-rocket-man-robbie-reader-contemporary-biographies.pdf
    • http://www.gorillawalker.com/parliamentary-socialism-a-study-in-the-politics-of-labour.pdf
    • http://www.gorillawalker.com/gus-learns-to-fly-self-defense-is-self-discovery.pdf
    • http://www.gorillawalker.com/el-climaterio-ya-no-es-una-condena-climaterio-de-las.pdf
    • http://www.gorillawalker.com/robert-brownjohn-sex-and-typography.pdf
    • http://www.gorillawalker.com/zhang-zai-s-philosophy-of-qi-a-practical-understanding.pdf
    • http://www.gorillawalker.com/targums-of-job-proverbs-and-qohelet-aramic-bible.pdf
    • http://www.gorillawalker.com/gender-and-jewish-difference-from-paul-to-shakespeare-the-middle.pdf
    • http://www.gorillawalker.com/music-video-and-entertainment-software-retailing-in-canada-market-databook.pdf
    • http://www.gorillawalker.com/my-brother-s-girlfriend-erotica-hardcore-lesbian-sapphic-sex-taboo.pdf
    • http://www.gorillawalker.com/frankfurt-main-deutschordenskirche-kleine-kunstfuhrer-german-edition.pdf
    • http://www.gorillawalker.com/don-carlo-ma-non-troppograndes-compositores-spanish-edition.pdf
    • http://www.gorillawalker.com/programming-interviews-exposed-secrets-to-landing-your-next-job-kindle.pdf
    • http://www.gorillawalker.com/embrace-the-dawn-scottish-highlands-series-1.pdf
    • http://www.gorillawalker.com/jamaica-drawings-by-valfred-thelin.pdf
    • http://www.gorillawalker.com/naufragio-de-la-solidaridad-los-pescadores-de-san-blas-an.pdf
    • http://www.gorillawalker.com/the-usborne-geography-encyclopedia-with-complete-world-atlas.pdf
    • http://www.gorillawalker.com/changing-police-culture-policing-in-a-multicultural-society.pdf
    • http://www.gorillawalker.com/community-salad-recipes-from-arthur-street-kitchen.pdf
    • http://www.gorillawalker.com/calm-sea-prosperous-voyage-study-score.pdf
    • http://www.gorillawalker.com/corydon.pdf
    • http://www.gorillawalker.com/fast-track-to-quality-a-12-month-program-for-small.pdf
    • http://www.gorillawalker.com/the-zen-of-motorcycle-maintenance-holistic-guide-for-first-time.pdf
    • http://www.gorillawalker.com/the-power-of-the-mayor-david-dinkins-1990-1993.pdf
    • http://www.gorillawalker.com/bigger-than-a-bread-box.pdf
    • http://www.gorillawalker.com/classics-for-the-developing-pianist-bk-4-core-repertoire-for.pdf
    • http://www.gorillawalker.com/horses-explore-the-beauty-of-these-majestic-animals-landscape-books.pdf
    • http://www.gorillawalker.com/industrial-light-magic-the-art-of-special-effects.pdf
    • http://www.gorillawalker.com/a-theological-commentary-to-the-midrash-vol-9.pdf
    • http://www.gorillawalker.com/cuba-under-siege-american-policy-the-revolution-and-its-people.pdf
    • http://www.gorillawalker.com/toefl-for-dummies.pdf
    • http://www.gorillawalker.com/the-history-of-java-2nd-edition-2-volumes.pdf
    • http://www.gorillawalker.com/rebels-and-yankees-naval-battles-of-the-civil-war.pdf
    • http://www.gorillawalker.com/parliamentary-socialism-a-study-in-the-polit
    • 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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