Malicious PDF — malware analysis report

Static analysis result for SHA-256 5b7f53553df49e83…

MALICIOUS

PDF

40.9 KB Created: 2018-12-15 20:00:38 +03:00 Authoring application: - (via Foxit Phantom Printer Version 3.0.3.0804)
MD5: 909cb943b6eb45513187aeab0c514e1f SHA-1: cd70efbd6af4113c188cbb2e7e793ccda156bf64 SHA-256: 5b7f53553df49e83648d5228989614bd57d3ead8d5f1746627b180c0b4a798e7
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF was flagged by a critical heuristic for containing a large number of external PDF links, suggesting a link farm or distribution mechanism. While no scripts were explicitly extracted, the presence of embedded URLs and the ML classifier's high confidence indicate malicious intent. The attack pattern likely involves luring the user to click on these links, potentially leading to further compromise or SEO manipulation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9181

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/1900-art-at-the-crossroads-2001.pdf
    • http://www.gorillawalker.com/time-for-bed-elmo-sesame-street-little-golden-book.pdf
    • http://www.gorillawalker.com/acceptance-the-southern-reach-trilogy.pdf
    • http://www.gorillawalker.com/counting-bears-early-reader-series-level-1-book-3.pdf
    • http://www.gorillawalker.com/comedy-and-conscience-after-the-restoration-columbia-university-studies-in.pdf
    • http://www.gorillawalker.com/plato-at-the-googleplex-why-philosophy-won-t-go-away.pdf
    • http://www.gorillawalker.com/therapeutic-lipidology-contemporary-cardiology.pdf
    • http://www.gorillawalker.com/percutaneous-tumor-ablation-strategies-and-techniques.pdf
    • http://www.gorillawalker.com/my-song-a-memoir.pdf
    • http://www.gorillawalker.com/my-single-friend.pdf
    • http://www.gorillawalker.com/party-games-fear-street.pdf
    • http://www.gorillawalker.com/stairway-to-heavenly-sleep-a-step-by-step-guide-to.pdf
    • http://www.gorillawalker.com/boyfriend-for-the-week-fill-me-up-feel-me-up.pdf
    • http://www.gorillawalker.com/signature-tastes-of-manhattan-favorite-recipes-of-our-local-restaurants.pdf
    • http://www.gorillawalker.com/the-influence-of-the-arthurian-romances-on-the-five-books.pdf
    • http://www.gorillawalker.com/my-lady-viper-tales-from-the-tudor-court-book-1.pdf
    • http://www.gorillawalker.com/an-introduction-to-highway-law.pdf
    • http://www.gorillawalker.com/sprich-mal-deutsch-bk-1.pdf
    • http://www.gorillawalker.com/exploring-the-shape-of-space-with-cdrom.pdf
    • http://www.gorillawalker.com/plant-parts-smarts-science-adventures-with-charlie-the-origami-bee.pdf
    • http://www.gorillawalker.com/song-of-wrath-the-peloponnesian-war-begins.pdf
    • http://www.gorillawalker.com/electromagnetic-theory-volume-1.pdf
    • http://www.gorillawalker.com/hidden-history-in-san-diego-county.pdf
    • http://www.gorillawalker.com/franko-b-blinded-by-love.pdf
    • http://www.gorillawalker.com/early-detection-of-dental-caries-proceedings-of-the-1st-annual.pdf
    • http://www.gorillawalker.com/mystical-magical-love-paranormal-romance-anthology-box-set-6-mystical.pdf
    • http://www.gorillawalker.com/the-cupcake-murders.pdf
    • http://www.gorillawalker.com/mel-bay-juan-serrano-flamenco-concert-selections.pdf
    • http://www.gorillawalker.com/kitplane-construction.pdf
    • http://www.gorillawalker.com/practice-of-osteopathy-its-practical-application-to-the-various-diseases.pdf
    • http://www.gorillawalker.com/psychiatric-advanced-practice-nursing-a-biopsychosocial-foundation-for-practice.pdf
    • http://www.gorillawalker.com/guerrilla-marketing-for-consultants-breakthrough-tactics-for-winning-profitable-clients.pdf
    • http://www.gorillawalker.com/love-in-the-limelight-volume-one-star-of-his-heart.pdf
    • http://www.gorillawalker.com/land-of-eight-million-dreams-year-of-the-lotus-changeling.pdf
    • http://www.gorillawalker.com/louise-dahl-wolfe-a-photographer-s-scrapbook.pdf
    • http://www.gorillawalker.com/curves-on-the-beach-curvy-bbw-threesome.pdf
    • http://www.gorillawalker.com/the-queen-s-favorite-thutmose-series-book-1-kindle-edition.pdf
    • http://www.gorillawalker.com/the-castle-in-transylvania.pdf
    • http://www.gorillawalker.com/logic-prentice-hall-foundations-of-philosophy-series.pdf
    • http://www.gorillawalker.com/vodou-visions-and-voices-of-haiti.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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