Malicious PDF — malware analysis report

Static analysis result for SHA-256 e32268a492fa3023…

MALICIOUS

PDF

32.8 KB Created: 2020-02-19 05:58:32 +03:00 Authoring application: - (via Apache FOP Version 0.93)
MD5: 416629d5348398b95638202d3f31b14a SHA-1: 9516b1c68b03736cd0d3df742686e822742be49b SHA-256: e32268a492fa3023a0ae3ca28a85b1b19b07033072d19a20879251a47aacd809
60 Risk Score

Malware Insights

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

The PDF file was identified as malicious due to a critical heuristic firing for a PDF SEO link farm. It contains 32 embedded external links, all pointing to the same domain, www.gorillawalker.com, with filenames suggesting various book titles. This pattern suggests an attempt to manipulate search engine rankings or to distribute content from a controlled domain. No scripts were extracted, and the document body was heavily obfuscated, limiting further analysis of the specific lure.

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/pictorial-history-of-the-luftwaffe.pdf
    • http://www.gorillawalker.com/rip-kirby-volume-8.pdf
    • http://www.gorillawalker.com/baby-bar-monkey-baby-bar-issues-questions-and-answers-law.pdf
    • http://www.gorillawalker.com/the-concise-dictionary-of-early-christianity-michael-glazier-books.pdf
    • http://www.gorillawalker.com/super-senses-save-the-day-a-story-about-the-five.pdf
    • http://www.gorillawalker.com/shooting-the-grand-canyon-kindle-edition.pdf
    • http://www.gorillawalker.com/marine-ecology-processes-systems-and-impacts.pdf
    • http://www.gorillawalker.com/the-harper-s-index-book.pdf
    • http://www.gorillawalker.com/la-odisea-the-odyssey-spanish-edition.pdf
    • http://www.gorillawalker.com/promise-debt-collector-7-kindle-edition.pdf
    • http://www.gorillawalker.com/gayaneh-suite-no2-score.pdf
    • http://www.gorillawalker.com/concise-history-of-the-one-hundred-and-twenty-sixth-regiment.pdf
    • http://www.gorillawalker.com/prokofiev-op-17-sarcasms-kalmus-edition.pdf
    • http://www.gorillawalker.com/quarry-s-vote.pdf
    • http://www.gorillawalker.com/cooking-for-two-120-recipes-for-every-day-and-those.pdf
    • http://www.gorillawalker.com/pictorial-bible-lands-atlas-cram-s-bible-lands-atlas.pdf
    • http://www.gorillawalker.com/rand-mcnally-springfield-streetfinder-rand-mcnally-streetfinder.pdf
    • http://www.gorillawalker.com/sahidic-to-english-lexicon.pdf
    • http://www.gorillawalker.com/wittgenstein-s-tractatus-logico-philosophicus-a-reader-s-guide-reader.pdf
    • http://www.gorillawalker.com/criminal-investigation-justice-series-2nd-edition-the-justice-series.pdf
    • http://www.gorillawalker.com/the-man-who-touched-his-own-heart-true-tales-of.pdf
    • http://www.gorillawalker.com/encyclopedia-of-evolution.pdf
    • http://www.gorillawalker.com/the-classical-german-elegy-1795-1950.pdf
    • http://www.gorillawalker.com/by-rita-mulcahy-rita-mulcahy-s-hot-topics-flashcards-for.pdf
    • http://www.gorillawalker.com/jci-accreditation-standards-for-hospitals-5th-ed.pdf
    • http://www.gorillawalker.com/god-in-the-marketplace-45-questions-fortune-500-executives-ask.pdf
    • http://www.gorillawalker.com/the-committed-marriage-biblical-perspectives-on-current-issues.pdf
    • http://www.gorillawalker.com/the-barn-at-the-end-of-the-world-the-apprenticeship.pdf
    • http://www.gorillawalker.com/number-theory-grundlehren-der-mathematischen-wissenschaften.pdf
    • http://www.gorillawalker.com/the-gay-cuckold-gay-cheating-husbands-erotica-bundle.pdf
    • http://www.gorillawalker.com/automotive-market-in-china-2011-download-pdf-digital.pdf
    • http://www.gorillawalker.com/el-sistema-nervioso-libros-sobre-el-cuerpo-humano-para-madrugadores.pdf
    • http://www.gorillawalker.com/paso-a-paso-level-a-second-edition.pdf
    • http://www.gorillawalker.com/jerusalem-o-my-beloved-jerusalem-and-holy-land-of-israel.pdf
    • http://www.gorillawalker.com/mechanical-vibrations-3rd-edition.pdf
    • http://www.gorillawalker.com/crossed-wish-you-were-here-volume-3-tp.pdf
    • http://www.gorillawalker.com/cool-careers-without-college-for-people-who-love-to-cook.pdf
    • http://www.gorillawalker.com/the-serpent-s-banner-kindle-edition.pdf
    • http://www.gorillawalker.com/tir-na-nog-shadowrun-7211.pdf
    • http://www.gorillawalker.com/annie-s-girl-how-an-abandoned-orphan-finally-discovered-the.pdf
    • http://www.gorillawalker.com/concise-histo
    • 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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