Malicious PDF — malware analysis report

Static analysis result for SHA-256 03983cae18ce8538…

MALICIOUS

PDF

42.5 KB Created: 2018-11-23 21:03:14 +03:00 Authoring application: Adobe InDesign CC 2014 (Windows) (via Adobe PDF Library 11.0)
MD5: 747192874ad96c853764ea3082af816b SHA-1: a51d12f3946568bcea8358b588bca13e76220612 SHA-256: 03983cae18ce85383e2424bc0b37ffe3a4a5e2f39f8430714d42fb660813642d
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links to external PDF files, as indicated by the 'PDF_SEO_LINK_FARM' heuristic. The ML classifier also flagged the document as malicious. While no scripts were explicitly extracted, the structure suggests an attempt to manipulate search engine results or redirect users to potentially malicious content hosted on 'gorillawalker.com'. The presence of numerous links points towards a link farm or SEO spamming tactic.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8872

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-night-hawk.pdf
    • http://www.gorillawalker.com/warship-pictorial-no-4-uss-texas-bb-35.pdf
    • http://www.gorillawalker.com/15-minute-vegetarian-recipes-200-quick-easy-and-delicious-recipes.pdf
    • http://www.gorillawalker.com/2012-pathways-12x12-wall-calendar.pdf
    • http://www.gorillawalker.com/rembrandt-and-the-face-of-jesus-philadelphia-museum-of-art.pdf
    • http://www.gorillawalker.com/pharmacognosy.pdf
    • http://www.gorillawalker.com/help-i-ve-turned-into-my-mother.pdf
    • http://www.gorillawalker.com/kensington-gardens-a-novel.pdf
    • http://www.gorillawalker.com/disney-sofia-the-first-please-thank-you-your-guide-to.pdf
    • http://www.gorillawalker.com/latin-american-bureaucracy-and-the-state-building-process-1780-1860.pdf
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    • http://www.gorillawalker.com/cognition-as-intuitive-statistics.pdf
    • http://www.gorillawalker.com/computational-fluid-dynamics-principles-and-applications-second-edition.pdf
    • http://www.gorillawalker.com/enterprise-j2me-developing-mobile-java-applications.pdf
    • http://www.gorillawalker.com/river-in-borneo.pdf
    • http://www.gorillawalker.com/stone-guardian.pdf
    • http://www.gorillawalker.com/gospel-guitalele-solos.pdf
    • http://www.gorillawalker.com/most-excellent-book-of-how-to-be-a-juggler-master.pdf
    • http://www.gorillawalker.com/defiance-of-the-patriots-the-boston-tea-party-the-making.pdf
    • http://www.gorillawalker.com/charles-fourier-the-visionary-and-his-world.pdf
    • http://www.gorillawalker.com/the-western-mail-order-bride-burning-bridges-behind-them.pdf
    • http://www.gorillawalker.com/harry-potter-und-der-gefangene-von-askaban-german-audio-cd.pdf
    • http://www.gorillawalker.com/todo-se-desmorona-things-fall-apart-spanish-edition.pdf
    • http://www.gorillawalker.com/breezes-of-truth-selected-early-classical-arabic-sufi-poetry.pdf
    • http://www.gorillawalker.com/what-is-social-scientific-criticism-guides-to-biblical-scholarship-new.pdf
    • http://www.gorillawalker.com/islamic-maritime-law-an-introduction-studies-in-islamic-law-and.pdf
    • http://www.gorillawalker.com/rene-staud-classic-cars-on-stage-2016.pdf
    • http://www.gorillawalker.com/sudbury.pdf
    • http://www.gorillawalker.com/kali-linux-assuring-security-by-penetration-testing.pdf
    • http://www.gorillawalker.com/sports-illustrated-brett-favre-the-tribute.pdf
    • http://www.gorillawalker.com/northern-solomons-u-s-army-campaigns-of-world-war-ii.pdf
    • http://www.gorillawalker.com/forhandlinger-i-videnskabs-selskabet-i-christiania-volume-2-norwegian-edition.pdf
    • http://www.gorillawalker.com/landscape-of-discontent-urban-sustainability-in-immigrant-paris-a-quadrant.pdf
    • http://www.gorillawalker.com/managing-by-slogan-a-light-hearted-look-at-how-leaders.pdf
    • http://www.gorillawalker.com/two-hundred-years-of-american-blown-glass.pdf
    • http://www.gorillawalker.com/farewell-to-the-working-class.pdf
    • http://www.gorillawalker.com/3-finger-pickin-banjo-songbook-book-cd-set.pdf
    • http://www.gorillawalker.com/the-worrywart-s-companion-twenty-one-ways-to-soothe-yourself.pdf
    • http://www.gorillawalker.com/starships-star-trek-roleplaying-game.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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