Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb636d08d8cc0e89…

MALICIOUS

PDF

48.4 KB Created: 2018-12-15 20:10:20 +03:00 Authoring application: Acrobat PDFMaker 8.1 for Word (via Acrobat Distiller 8.1.0 (Windows))
MD5: fa25c93ed943a985d838c05e0f57bd1d SHA-1: bcae9a45981b4ba8b68f49b1b658be701278e86f SHA-256: eb636d08d8cc0e8927f0b6d2d8b9a1d40bc996381e56d84608bdcd4b1f9594dc
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links pointing to PDF files on the domain 'www.gorillawalker.com'. This behavior is indicative of a link farm, likely used for SEO manipulation or to distribute potentially malicious content. The ML classifier also flagged this PDF as malicious. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8509

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/a-history-of-london-in-100-places.pdf
    • http://www.gorillawalker.com/wipe-my-tears-between-us-only-kindle-edition.pdf
    • http://www.gorillawalker.com/historia-de-la-naci-n-chichimeca-memoria-spanish-edition.pdf
    • http://www.gorillawalker.com/exploring-cultural-rights-and-cultural-diversity-an-introduction-with-selected.pdf
    • http://www.gorillawalker.com/excellent-presentation.pdf
    • http://www.gorillawalker.com/under-the-rose-ivy-league.pdf
    • http://www.gorillawalker.com/budgetary-politics-in-american-governments.pdf
    • http://www.gorillawalker.com/donde-estas-ahmed-where-are-you-ahmed-espacio-abierto-open.pdf
    • http://www.gorillawalker.com/belle-olive.pdf
    • http://www.gorillawalker.com/lessons-in-chess-strategy.pdf
    • http://www.gorillawalker.com/moonlight-in-vermont-other-great-standards-jazz-play-along-volume.pdf
    • http://www.gorillawalker.com/busy-applicant-s-guide-to-get-into-law-school-everything.pdf
    • http://www.gorillawalker.com/where-she-came-from-a-daughter-s-search-for-her.pdf
    • http://www.gorillawalker.com/by-order-of-the-president-presidential-agent-novels.pdf
    • http://www.gorillawalker.com/a-dance-of-cloaks-shadowdance-series-book-1.pdf
    • http://www.gorillawalker.com/2012-a-i-flowers-style-grid-calendar.pdf
    • http://www.gorillawalker.com/paranormal-romance-he-transformed-to-love-me-paranormal-romance-story.pdf
    • http://www.gorillawalker.com/diario-de-la-expedicion-exploradora-boliviana-al-alto-paraguay-de.pdf
    • http://www.gorillawalker.com/the-wadsworth-anthology-of-drama-revised-edition.pdf
    • http://www.gorillawalker.com/the-gift-of-good-land-further-essays-cultural-and-agricultural.pdf
    • http://www.gorillawalker.com/navier-stokes-equations-on-the-existence-and-the-search-method.pdf
    • http://www.gorillawalker.com/eft-for-ptsd-eft-emotional-freedom-techniques.pdf
    • http://www.gorillawalker.com/listening-b2-collins-english-for-life.pdf
    • http://www.gorillawalker.com/information-hiding-12th-international-conference-ih-2010-calgary-ab-canada.pdf
    • http://www.gorillawalker.com/placental-pathology-atlas-of-nontumor-pathology.pdf
    • http://www.gorillawalker.com/goodword-quran-dictionary-for-kids-islamic-children-s-books-on.pdf
    • http://www.gorillawalker.com/agamemnon-frost-and-the-hollow-ships-agamemnon-frost-book-2.pdf
    • http://www.gorillawalker.com/comment-r-ussir-sa-paces-une-m-thode-de-travail.pdf
    • http://www.gorillawalker.com/from-jesus-to-paul-studies-in-honour-of-francis-wright.pdf
    • http://www.gorillawalker.com/horizons-the-life-and-times-of-edric-connor.pdf
    • http://www.gorillawalker.com/stallcup-s-generator-transformer-motor-and-compressor-book-2002-edition.pdf
    • http://www.gorillawalker.com/simply-sushi-easy-recipes-for-making-delicious-sushi-rolls-at.pdf
    • http://www.gorillawalker.com/gallipoli-a-foot-soldier-s-first-battle-september-1915-january.pdf
    • http://www.gorillawalker.com/houghton-mifflin-spelling-and-vocabulary-student-edition-consumable-ball-stroke.pdf
    • http://www.gorillawalker.com/iec-60027-1-ed-6-0-b-1992-letter-symbols.pdf
    • http://www.gorillawalker.com/delights-from-the-garden-of-eden-a-complete-guide-to.pdf
    • http://www.gorillawalker.com/no-it-s-fine-decoding-her-words-thoughts-and-feelings.pdf
    • http://www.gorillawalker.com/potatoes-50-easy-recipes.pdf
    • http://www.gorillawalker.com/iec-60130-17-ed-1-0-b-1998-connectors-for.pdf
    • http://www.gorillawalker.com/microcontroller-programming-and-interfacing-texas-instruments-msp430-synthesis-lectures-on.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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