Malicious PDF — malware analysis report

Static analysis result for SHA-256 a346b50206d20d71…

MALICIOUS

PDF

42.6 KB Created: 2018-12-11 20:45:35 +03:00 Authoring application: easyPDF Printer Driver 4.3 (via BCL easyPDF 4.30 (0303))
MD5: 133bcd4d7b61ea20473cbe0f637fd2c2 SHA-1: e3f0c758bd1cd166581a663d7934b8400931bb55 SHA-256: a346b50206d20d719e9a6471a6c3553d4289cbc5d2430d8e6780857b298ebec0
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF was flagged by a machine learning classifier and a critical heuristic for containing a large number of external links. These links, hosted on gorillawalker.com, are likely used for SEO spam or to lure users to malicious content. No scripts were extracted, and the document body was unreadable, limiting further analysis of the specific lure.

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/adobe-photoshop-elements-3-0.pdf
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    • http://www.gorillawalker.com/the-supreme-court-in-the-federal-judicial-system.pdf
    • http://www.gorillawalker.com/key-problems-of-sociological-theory-international-library-of-sociology-and.pdf
    • http://www.gorillawalker.com/matrices-and-quadratic-forms-modular-mathematics-series-paperback-2000-author.pdf
    • http://www.gorillawalker.com/pole-dancing-adventures-kindle-edition.pdf
    • http://www.gorillawalker.com/reference-book-of-american-business-nebraska-third-quarter.pdf
    • http://www.gorillawalker.com/panama-kanal-land-und-leute-german-edition.pdf
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    • http://www.gorillawalker.com/la-cambiale-di-matrimonio-cavatina-grazie-grazie-basso-comico-full.pdf
    • http://www.gorillawalker.com/the-good-doctor-a-novel.pdf
    • http://www.gorillawalker.com/nursing-the-neonate.pdf
    • http://www.gorillawalker.com/beginning-traditional-manuscript-grades-k-2.pdf
    • http://www.gorillawalker.com/houghton-mifflin-social-studies-california-aud-bk-mp3-lvl-4.pdf
    • http://www.gorillawalker.com/anthropologie-im-philosophieunterricht-ein-beitrag-zum-lernzielorientierten-unterricht-european-university.pdf
    • http://www.gorillawalker.com/foot-acupuncture-therapy-paperback.pdf
    • http://www.gorillawalker.com/follow-the-sun-stories-from-sapphire-cay-volume-1.pdf
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    • http://www.gorillawalker.com/britain-and-the-making-of-pakistan.pdf
    • http://www.gorillawalker.com/houghton-mifflin-social-studies-practice-book-level-4-states-and.pdf
    • http://www.gorillawalker.com/the-enormous-turnip-level-1-read-it-yourself-ladybird.pdf
    • http://www.gorillawalker.com/sino-soviet-territorial-dispute-1949-64.pdf
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    • http://www.gorillawalker.com/object-oriented-programming-in-coldfusion-kindle-edition.pdf
    • http://www.gorillawalker.com/the-companion-guide-for-lies-women-believe-a-life-changing.pdf
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    • http://www.gorillawalker.com/the-seven-deadly-sins-leader-s-guide-a-survival-guide.pdf
    • http://www.gorillawalker.com/mandolin-concerto-no-4-in-g-major.pdf
    • http://www.gorillawalker.com/open-wide-dr-mark-manhart-s-journey-in-dentistry-theatre.pdf
    • http://www.gorillawalker.com/white-man-s-boo-three-stories-with-billionaires-bwwm-and.pdf
    • http://www.gorillawalker.com/sandwiched-by-succubi.pdf
    • http://www.gorillawalker.com/voltaire-a-biography.pdf
    • http://www.gorillawalker.com/surveyin-da-situation-the-life-and-times-of-a-native.pdf
    • http://www.gorillawalker.com/essential-oils-for-depresion-essential-oil-remedies-for-stress-and.pdf
    • http://www.gorillawalker.com/panama-kanal-l
    • 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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