Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a8543428ce1899a…

MALICIOUS

PDF

45.0 KB Created: 2018-12-02 10:55:44 +03:00 Authoring application: Acrobat PDFMaker 8.1 for Word (via Adobe Acrobat 8.2)
MD5: 15d513c6839eba60f5b2aa7bdb7d3e64 SHA-1: 2071d1d4ce36987e1ff4be1e33db9dc51b3c8428 SHA-256: 7a8543428ce1899affd5ed74c44c1e5a10047fcd47a58d9d2c786fdb733f8d56
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 User Execution: Malicious File

The PDF file contains a large number of embedded links pointing to external PDF documents on the domain 'gorillawalker.com'. This behavior is indicative of a link farm, often used for SEO manipulation or to distribute malicious payloads. The ML classifier also flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8439

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/the-amateur-gourmet-how-to-shop-chop-and-table-hop.pdf
    • http://www.gorillawalker.com/the-people-s-republic-of-china-consumer-protection-law-2013.pdf
    • http://www.gorillawalker.com/archimedes-revenge-the-challenge-of-the-unknown.pdf
    • http://www.gorillawalker.com/hand-to-earth-andy-goldsworthy-sculpture-1976-1990.pdf
    • http://www.gorillawalker.com/the-use-of-neuroplegics-and-tranquillizers-in-veterinary-medicine-and.pdf
    • http://www.gorillawalker.com/prefixes-suffixes-grade-3-practice-makes-perfect-teacher-created-resources.pdf
    • http://www.gorillawalker.com/management-of-fruit-flies-in-the-pacific-aciar-proceedings.pdf
    • http://www.gorillawalker.com/2015-sherlock-holmes-calendar.pdf
    • http://www.gorillawalker.com/moonlight-sonata-for-alto-sax-piano-sheet-music.pdf
    • http://www.gorillawalker.com/the-papers-of-martin-luther-king-jr-volume-i-called.pdf
    • http://www.gorillawalker.com/corvette-2009-calendar.pdf
    • http://www.gorillawalker.com/the-gospel-of-christ-the-message-of-the-gospels-acts.pdf
    • http://www.gorillawalker.com/the-maryland-campaign-of-september-1862-ezra-a-carman-s.pdf
    • http://www.gorillawalker.com/the-encyclopedia-of-fantastic-victoriana.pdf
    • http://www.gorillawalker.com/a-handbook-of-wine-how-to-buy-serve-store-and.pdf
    • http://www.gorillawalker.com/a-sweater-for-austin-a-wool-sweater-fetish-story-part.pdf
    • http://www.gorillawalker.com/ideas-and-movements-that-shaped-america-3-volumes-from-the.pdf
    • http://www.gorillawalker.com/lifelines-australian-women-s-letters-and-diaries-1788-1840.pdf
    • http://www.gorillawalker.com/the-7-habits-of-highly-effective-teens-journal.pdf
    • http://www.gorillawalker.com/run-away-home-apple-paperbacks.pdf
    • http://www.gorillawalker.com/unit-operations-of-chemical-engineering-by-mccabe-warren-smith-julian.pdf
    • http://www.gorillawalker.com/introduction-to-graphene-based-nanomaterials-from-electronic-structure-to-quantum.pdf
    • http://www.gorillawalker.com/cunningham-s-encyclopedia-of-magical-herbs-cunningham-s-encyclopedia-series.pdf
    • http://www.gorillawalker.com/un-cuento-para-cada-d-a-365-spanish-edition.pdf
    • http://www.gorillawalker.com/wise-moves-in-hard-times-creating-managing-resilient-colleges-universities.pdf
    • http://www.gorillawalker.com/get-to-work-hercules-myth-o-mania.pdf
    • http://www.gorillawalker.com/solitaire-lee-lozano-sylvia-plimack-mangold-joan-semmel-wexner-center.pdf
    • http://www.gorillawalker.com/until-the-debt-is-paid-jan-tommen-investigation-book-1.pdf
    • http://www.gorillawalker.com/making-connections-total-body-integration-through-bartenieff-fundamentals.pdf
    • http://www.gorillawalker.com/the-organization-of-information.pdf
    • http://www.gorillawalker.com/aristotles-metaphysics.pdf
    • http://www.gorillawalker.com/personal-and-business-networking-plain-english-seminar-audio-cds-book.pdf
    • http://www.gorillawalker.com/the-feminist-porn-book-the-politics-of-producing-pleasure.pdf
    • http://www.gorillawalker.com/by-ian-r-dowbiggin-the-sterilization-movement-and-global-fertility.pdf
    • http://www.gorillawalker.com/jerked-a-stepbrother-mob-romance-city-series.pdf
    • http://www.gorillawalker.com/instrumentation-for-the-operating-room-a-photographic-manual-7e.pdf
    • http://www.gorillawalker.com/berlitz-complete-guide-to-cruising-and-cruise-ships-2012-berlitz.pdf
    • http://www.gorillawalker.com/toward-a-psychology-of-being-kindle-edition.pdf
    • http://www.gorillawalker.com/vampires-freaks-and-emoticons-dialogues-on-the-fringe-the-search.pdf
    • http://www.gorillawalker.com/regulation-of-lawyers-statutes-and-standards-2010-concise-edition.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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