Malicious PDF — malware analysis report

Static analysis result for SHA-256 2966db5874342191…

MALICIOUS

PDF

44.8 KB Created: 2018-11-26 20:06:41 +03:00 Authoring application: TeX (via MiKTeX pdfTeX-1.10b)
MD5: eb21313298c577c8fd77fe96005920ef SHA-1: 230116dd43c9099815770bee4b67357873daaee7 SHA-256: 2966db587434219191c68750893862646485dcc51135a5ddc97cb92578b7c72e
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded URLs pointing to external PDF files, a technique often used for SEO manipulation or to distribute malicious content. The ML classifier also flagged this PDF as malicious. No scripts were extracted from this sample, and the document body was heavily obfuscated, limiting further analysis of the specific lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8812

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-shepherd-leader-at-home-knowing-leading-protecting-and-providing.pdf
    • http://www.gorillawalker.com/my-first-spanking-an-anthology-of-short-stories.pdf
    • http://www.gorillawalker.com/tango-arranged-for-violin-or-viola-and-piano-by-forbes.pdf
    • http://www.gorillawalker.com/they-re-anybody-s-for-a-bit-of-weed-or.pdf
    • http://www.gorillawalker.com/carnal-pleasures-an-erotic-short-story.pdf
    • http://www.gorillawalker.com/barron-s-toeic-audio-cd-pack.pdf
    • http://www.gorillawalker.com/developmental-milestones-of-young-children-redleaf-quick-guides.pdf
    • http://www.gorillawalker.com/heavens-to-betsy-other-curious-sayings.pdf
    • http://www.gorillawalker.com/the-five-messages-leaders-must-manage-harvard-business-review-unabridged.pdf
    • http://www.gorillawalker.com/the-compleat-day-trader-ii-v-2.pdf
    • http://www.gorillawalker.com/california-wild-lands.pdf
    • http://www.gorillawalker.com/antiquit-s-am-ricaines-d-apr-s-les-monuments-historiques.pdf
    • http://www.gorillawalker.com/bering-land-bridge-national-preserve-alaska-hisoric-resource-study.pdf
    • http://www.gorillawalker.com/redefining-normal-when-your-baby-has-down-syndrome-kindle-edition.pdf
    • http://www.gorillawalker.com/handbook-of-sports-medicine-and-science-sport-psychology.pdf
    • http://www.gorillawalker.com/impressionism-movements-in-art.pdf
    • http://www.gorillawalker.com/burgundy-alsace-travel-guide-attractions-eating-drinking-shopping-places-to.pdf
    • http://www.gorillawalker.com/heredity-and-environment-in-300-adoptive-families-the-texas-adoption.pdf
    • http://www.gorillawalker.com/hope-restrained-rough-trade-1-menage-mmf-rough.pdf
    • http://www.gorillawalker.com/unraveling-the-inner-game-to-hair-styling-accessories-sales-success.pdf
    • http://www.gorillawalker.com/pmp-exam-prep-questions-answers-explanations.pdf
    • http://www.gorillawalker.com/subaru-legacy-forester-2000-thru-2006-all-models-haynes-repair.pdf
    • http://www.gorillawalker.com/getaway-i-found-my-heart-in-san-francisco-book-seven.pdf
    • http://www.gorillawalker.com/the-mapping-of-new-spain-indigenous-cartography-and-the-maps.pdf
    • http://www.gorillawalker.com/programming-microsoft-outlook-and-microsoft-exchange-microsoft-programming.pdf
    • http://www.gorillawalker.com/create-your-own-lettering-with-four-pens-art-tricks.pdf
    • http://www.gorillawalker.com/a-new-synopsis-of-nosology-founded-on-t.pdf
    • http://www.gorillawalker.com/tides-that-bind-kindle-edition.pdf
    • http://www.gorillawalker.com/isis-race-to-armageddon.pdf
    • http://www.gorillawalker.com/the-cell-surface-cold-spring-harbor-symposia-on-quantitative-biology.pdf
    • http://www.gorillawalker.com/reiki-usui-tibetan-level-iii-art-certification-manual-advanced-reiki.pdf
    • http://www.gorillawalker.com/gasterias-of-south-africa-a-new-revision-of-a-major.pdf
    • http://www.gorillawalker.com/scholarships-grants-for-study-or-research-in-usa-a-scholarship.pdf
    • http://www.gorillawalker.com/postfemininities-in-popular-culture.pdf
    • http://www.gorillawalker.com/the-bigs-the-secrets-nobody-tells-students-and-young-professionals.pdf
    • http://www.gorillawalker.com/briot-and-bouquet-s-elements-of-analytical-geometry-of-two.pdf
    • http://www.gorillawalker.com/celestial-beings-of-heaven-and-nature-meditation-coloring-book.pdf
    • http://www.gorillawalker.com/glitter-hanukkah-stickers-dover-little-activity-books-stickers.pdf
    • http://www.gorillawalker.com/franklin-d-roosevelt-biografias-de-los-presidentes-de-los-estados.pdf
    • http://www.gorillawalker.com/folk-music-from-austria-2-recorder.pdf
    • http://www.gorillawalker.com/developmental-milestones-of-young-children-redleaf-quick-guides.p
    • 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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