Malicious PDF — malware analysis report

Static analysis result for SHA-256 3a1edc4bc1ecd550…

MALICIOUS

PDF

33.5 KB Created: 2019-07-13 04:01:43 +03:00 Authoring application: QuarkXPress(R) 8.0
MD5: 0dab1f80ad5ff38ef5ba665a871d5978 SHA-1: cc5d178cf9684262f607c045a986ee7810418520 SHA-256: 3a1edc4bc1ecd550a49a01ca40364122f8efd02eb4c9b97d42ec8bb335c20459
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to various PDF files on the gorillawalker.com domain. This suggests a link farm or content distribution tactic. The ML_NYX_PDF_MALICIOUS heuristic also flagged the file with high confidence. No scripts were extracted, and the document body was heavily obfuscated, limiting further analysis of the specific lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8529

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/criminal-procedure-for-the-criminal-justice-professional-with-cd-rom.pdf
    • http://www.gorillawalker.com/the-bravest-man-richard-o-kane-and-the-amazing-submarine.pdf
    • http://www.gorillawalker.com/twitight-eine-erotische-satire-german-edition.pdf
    • http://www.gorillawalker.com/mammoth-101-wickedly-hot-erotic-short-stories-for-women.pdf
    • http://www.gorillawalker.com/art-across-time-combined-4th-edition.pdf
    • http://www.gorillawalker.com/nueve-grandes-filosofos-contemporaneos-y-sus-temas-autores-textos-y.pdf
    • http://www.gorillawalker.com/karnten-mensch-tracht-landschaft-german-edition.pdf
    • http://www.gorillawalker.com/perfect-acts-of-architecture.pdf
    • http://www.gorillawalker.com/southern-italy-and-sicily-with-excursions-to-sardinia-malta-and.pdf
    • http://www.gorillawalker.com/geriatric-physical-therapy.pdf
    • http://www.gorillawalker.com/the-jesuit-and-the-skull-teilhard-de-chardin-evolution-and.pdf
    • http://www.gorillawalker.com/hiroshima-spanish-edition.pdf
    • http://www.gorillawalker.com/dump-dinners-simply-speedy-dump-dinner-recipes-dump-dinners-cookbook.pdf
    • http://www.gorillawalker.com/church-ministry-and-sacraments-in-the-new-testament-the-didsbury.pdf
    • http://www.gorillawalker.com/religion-in-colonial-america-religion-in-american-life.pdf
    • http://www.gorillawalker.com/the-lineup-the-world-s-greatest-crime-writers-tell-the.pdf
    • http://www.gorillawalker.com/history-of-psychiatry-and-medical-psychology-with-an-epilogue-on.pdf
    • http://www.gorillawalker.com/law-dictionary-for-nonlawyers-paralegal-reference-materials.pdf
    • http://www.gorillawalker.com/refugee-boy.pdf
    • http://www.gorillawalker.com/the-unknown-soldiers.pdf
    • http://www.gorillawalker.com/adhyatma-ramayana-sanskrit-verse-with-english-translation.pdf
    • http://www.gorillawalker.com/the-nerdy-writer-a-glimpse-of-the-technical-writer-profession.pdf
    • http://www.gorillawalker.com/wedgewood-grey-the-black-or-white-chronicles-2-bk-2.pdf
    • http://www.gorillawalker.com/hydraulic-failure-analysis-fluids-components-and-system-effects-astm-special.pdf
    • http://www.gorillawalker.com/chemical-reaction-networks-a-graph-theoretical-approach.pdf
    • http://www.gorillawalker.com/from-fields-of-fire-and-glory-letters-of-the-civil.pdf
    • http://www.gorillawalker.com/baby-bumps-from-party-girl-to-proud-mama-and-all.pdf
    • http://www.gorillawalker.com/mime-and-pantomime-in-the-twentieth-century-history-theory-and.pdf
    • http://www.gorillawalker.com/mark-twain-at-work.pdf
    • http://www.gorillawalker.com/forever-family-series-box-set.pdf
    • http://www.gorillawalker.com/world-futsal-magazine-plus-vol294-one-two-pass-timing-and.pdf
    • http://www.gorillawalker.com/loudmouth-george-and-the-cornet-nancy-carlson-s-neighborhood.pdf
    • http://www.gorillawalker.com/communication-system-design-using-dsp-algorithms-with-laboratory-experiments-for.pdf
    • http://www.gorillawalker.com/introducing-timothy-findley-s-the-wars-canadian-fiction-studies-series.pdf
    • http://www.gorillawalker.com/inbreeding-heterosis-fertility-plasmon-differentiation-and-phytophthora-resistance-in-solanum.pdf
    • http://www.gorillawalker.com/frommer-s-easyguide-to-israel-easy-guides-kindle-edition.pdf
    • http://www.gorillawalker.com/mastering-autodesk-3ds-max-design-2011.pdf
    • http://www.gorillawalker.com/principles-of-international-investment-law-foundations-of-public-international-law.pdf
    • http://www.gorillawalker.com/ghetto-at-the-center-of-the-world-chungking-mansions-hong.pdf
    • http://www.gorillawalker.com/totally-tuneless-an-alphabetical-anthology-of-almost-every-song-lyric.pdf
    • http://www.gorillawalker.com/karnten-mensch-tracht-landschaft-german-e
    • 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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