Malicious PDF — malware analysis report

Static analysis result for SHA-256 e92f4e225c3841f8…

MALICIOUS

PDF

40.3 KB Created: 2018-12-15 08:09:57 +03:00 Authoring application: dvipsk 5.58f Copyright 1986, 1994 Radical Eye Software (via Acrobat Distiller 3.0 f r Macintosh)
MD5: 67235c52c896d437d7b0e29eb865b09a SHA-1: 169f0db90a4df2329d24e72b70c4ee6d80577292 SHA-256: e92f4e225c3841f86ead86f6255d806a79258ea0b31a5d4c024a2a82fa02f465
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF file contains a large number of embedded links to external PDF documents, primarily hosted on www.gorillawalker.com. This technique is often used for SEO manipulation or to distribute malicious content indirectly. The ML classifier also flagged this PDF as malicious with a high probability. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9526

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/ghost-spawn-the-complete-trilogy-ghost-breeding-erotica.pdf
    • http://www.gorillawalker.com/a-madman-s-marionettes.pdf
    • http://www.gorillawalker.com/little-miss-history-travel-to-sequoia-national-park-volume-3.pdf
    • http://www.gorillawalker.com/the-soul-of-wit-eccentricity-absurdity-and-other-ecclesiastical-treasures.pdf
    • http://www.gorillawalker.com/programming-c-programming-programming-language-for-beginners-learn-in-a.pdf
    • http://www.gorillawalker.com/recipes-from-the-ozarks-sentinel-kindle-edition.pdf
    • http://www.gorillawalker.com/introduction-to-reference-work-vol-1-basic-information-services-8th.pdf
    • http://www.gorillawalker.com/mallorca-top-10-spanish-edition.pdf
    • http://www.gorillawalker.com/the-necessity-for-ruins-and-other-topics.pdf
    • http://www.gorillawalker.com/how-to-start-a-home-based-desktop-publishing-business-3rd.pdf
    • http://www.gorillawalker.com/food-lover-s-guide-to-amsterdam-how-to-eat-well.pdf
    • http://www.gorillawalker.com/egypt-greece-and-rome-civilizations-of-the-ancient-mediterranean.pdf
    • http://www.gorillawalker.com/the-american-idea-of-england-1776-1840-transatlantic-writing-ashgate.pdf
    • http://www.gorillawalker.com/junkers-ju-88-vol-ii.pdf
    • http://www.gorillawalker.com/how-to-raise-an-honest-rabbit-granby-knitting-series-unabridged.pdf
    • http://www.gorillawalker.com/mare-in-the-meadow-animal-ark-series-31.pdf
    • http://www.gorillawalker.com/invisible-prepper-disappear-from-big-brother-s-radar-protect-family.pdf
    • http://www.gorillawalker.com/fasttrack-pharmaceutics-dosage-form-and-design.pdf
    • http://www.gorillawalker.com/mg-34-mg-42-german-universal-machine-guns.pdf
    • http://www.gorillawalker.com/rapture-the-end-times-error-that-leaves-the-bible-behind.pdf
    • http://www.gorillawalker.com/queer-japan-personal-stories-of-japanese-lesbians-gays-transsexuals-and.pdf
    • http://www.gorillawalker.com/spark-notes-dune.pdf
    • http://www.gorillawalker.com/e-franklin-frazier-and-black-bourgeoisie.pdf
    • http://www.gorillawalker.com/advanced-orthopedic-and-orthodontic-therapy.pdf
    • http://www.gorillawalker.com/mathematical-models-of-distribution-channels-international-series-in-quantitative-marketing.pdf
    • http://www.gorillawalker.com/moan-for-me.pdf
    • http://www.gorillawalker.com/information-and-communication-in-venice-rethinking-early-modern-politics.pdf
    • http://www.gorillawalker.com/justice-invisible-bible-study-a-bible-study-based-on-the.pdf
    • http://www.gorillawalker.com/the-two-little-ducks-kindle-edition.pdf
    • http://www.gorillawalker.com/3-26-2015-house-str-stocks-buy-sell-hold-ratings.pdf
    • http://www.gorillawalker.com/hamlyn-all-colour-cookbook-200-juices-smoothies-200-juices-and.pdf
    • http://www.gorillawalker.com/the-honeypot-vientiane-laos-atlantis.pdf
    • http://www.gorillawalker.com/sharing-our-knowledge-the-tlingit-and-their-coastal-neighbors.pdf
    • http://www.gorillawalker.com/un-gar-on-de-chez-very-pi-ce-de-th.pdf
    • http://www.gorillawalker.com/eight-ways-to-keep-the-devil-under-your-feet.pdf
    • http://www.gorillawalker.com/puerto-rico-off-the-beaten-path-a-guide-to-unique.pdf
    • http://www.gorillawalker.com/the-seven-s-e-c-r-e-t-s-of.pdf
    • http://www.gorillawalker.com/blank-cookbook-favorite-paleo-recipes.pdf
    • http://www.gorillawalker.com/development-of-american-citizenship-1608-1870-published-for-the-omohundro.pdf
    • http://www.gorillawalker.com/babeth-djian-babeth.pdf
    • http://www.gorillawalker.com/how-to-start-a-home-based-desk
    • 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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