Malicious PDF — malware analysis report

Static analysis result for SHA-256 a7efdf10924cf451…

MALICIOUS

PDF

42.6 KB Created: 2018-11-14 22:16:43 +03:00 Authoring application: FineReader (via -)
MD5: 149b9fb73627d8ec6b6279ed97ecbf48 SHA-1: 9542d18813089e9890c009d4ee3832a1a031d88f SHA-256: a7efdf10924cf45169129b79586cdfb8a098e568801fa9f7e4bd98238031660c
90 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier as malicious and contains a large number of external links, identified as a PDF SEO link farm. While no scripts were extracted, the sheer volume of links suggests an attempt to manipulate search engine results or to distribute further malicious content. The embedded URLs are the primary indicators of malicious activity.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9027

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/simply-acting-a-handbook-for-beginning-actors.pdf
    • http://www.gorillawalker.com/pct-spin-and-statistics-and-all-that.pdf
    • http://www.gorillawalker.com/e-commerce-and-information-technology-in-hospitality-and-tourism.pdf
    • http://www.gorillawalker.com/the-rebel-and-the-heiress-the-wild-ones.pdf
    • http://www.gorillawalker.com/autism-and-pdd-adolescent-social-skills-lessons-managing-behavior.pdf
    • http://www.gorillawalker.com/edison-s-fantastic-phonograph.pdf
    • http://www.gorillawalker.com/the-long-way-westward-i-can-read-book-3.pdf
    • http://www.gorillawalker.com/tattoo-showcase-by-hardy-lal-2012.pdf
    • http://www.gorillawalker.com/ringing-in-the-wilderness-selections-from-the-north-country-anvil.pdf
    • http://www.gorillawalker.com/hildebrand-s-travel-guide-cuba.pdf
    • http://www.gorillawalker.com/the-complete-adventures-of-romney-pringle.pdf
    • http://www.gorillawalker.com/the-lazy-man-s-cookbook-meals-you-can-make-in.pdf
    • http://www.gorillawalker.com/there-s-a-shark-in-the-mikvah-a-light-hearted.pdf
    • http://www.gorillawalker.com/robbie-williams-live-at-knebworth-for-piano-voice-and-guitar.pdf
    • http://www.gorillawalker.com/hell-kindle-edition.pdf
    • http://www.gorillawalker.com/zucchini-the-snowman.pdf
    • http://www.gorillawalker.com/futures-april-2011-john-taylor-on-cover-forex-pioneer-currency.pdf
    • http://www.gorillawalker.com/between-peace-and-war-the-nature-of-international-crisis.pdf
    • http://www.gorillawalker.com/gone-away-the-derrydale-press-foxhunters-library.pdf
    • http://www.gorillawalker.com/first-conquest-stellar-conquest-series-book-1-kindle-edition.pdf
    • http://www.gorillawalker.com/saint-john-s-at-150-a-portrait-of-this-place.pdf
    • http://www.gorillawalker.com/isaac-newton-livewire-real-lives-series.pdf
    • http://www.gorillawalker.com/indigenous-rights-and-united-nations-standards-self-determination-culture-and.pdf
    • http://www.gorillawalker.com/sexyful-an-erotic-journey.pdf
    • http://www.gorillawalker.com/outside-lies-magic-kindle-edition.pdf
    • http://www.gorillawalker.com/rise-up-puzzle-25-pack.pdf
    • http://www.gorillawalker.com/mario-testino-let-me-in-deluxe-limited-edition-signed-by.pdf
    • http://www.gorillawalker.com/the-wounded-jung-effects-of-jung-s-relationships-on-his.pdf
    • http://www.gorillawalker.com/great-bear-almanac.pdf
    • http://www.gorillawalker.com/bob-richardson.pdf
    • http://www.gorillawalker.com/eureka-math-a-story-of-units-grade-5-module-5.pdf
    • http://www.gorillawalker.com/banndodebyudaisakusenn-japanese-edition-kindle-edition.pdf
    • http://www.gorillawalker.com/by-j-robert-schrieffer-theory-of-superconductivity-3rd-third-edition.pdf
    • http://www.gorillawalker.com/the-writer-s-journey-mythic-structure-for-storytellers-screenwriters.pdf
    • http://www.gorillawalker.com/shostakovich-in-dialogue.pdf
    • http://www.gorillawalker.com/lessons-from-madame-chic-20-stylish-secrets-i-learned-while.pdf
    • http://www.gorillawalker.com/graphis-photo-94-photography-annual.pdf
    • http://www.gorillawalker.com/devilish-montague-a-rebellious-sons-novel-volume-2.pdf
    • http://www.gorillawalker.com/the-offering-a-novel.pdf
    • http://www.gorillawalker.com/power-dream-freedom-from-back-pain.pdf
    • http://www.gorillawalker.com/rin
    • 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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