Malicious PDF — malware analysis report

Static analysis result for SHA-256 a152efd51270f7e9…

MALICIOUS

PDF

42.0 KB Created: 2018-11-30 20:39:18 +03:00 Authoring application: Adobe Acrobat 6.0 (via Adobe Acrobat 6.0 Paper Capture Plug-in)
MD5: 8cbfdca8f12dc4ebc6dd01d5a6458f46 SHA-1: d256b83967d498572ea845aff369b114d591f7da SHA-256: a152efd51270f7e91c1e571ace3d6fe6c709069730f273c3c31b36d88997090e
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 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 with high confidence. No scripts were extracted, and the document body was unreadable, but the heuristic firings strongly suggest a link farm attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9181

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/solo-life-with-an-electric-car.pdf
    • http://www.gorillawalker.com/made-in-italy-etro.pdf
    • http://www.gorillawalker.com/rand-mcnally-highways-of-dallas-fort-worth-vicinity-tx.pdf
    • http://www.gorillawalker.com/scarred-lands-forbidden-dead-god-book-3.pdf
    • http://www.gorillawalker.com/thailand-malaysia-and-singapore-by-rail.pdf
    • http://www.gorillawalker.com/leading-through-the-quagmire-ethical-foundations-critical-methods-and-practical.pdf
    • http://www.gorillawalker.com/i-did-it-i-m-sorry.pdf
    • http://www.gorillawalker.com/vocabulaire-en-action-livre-grand-debutant-cd-audio-corriges-a1.pdf
    • http://www.gorillawalker.com/10-human-how-your-body-s-microbes-hold-the-key.pdf
    • http://www.gorillawalker.com/welcome-to-methadonia-a-social-worker-s-candid-account-of.pdf
    • http://www.gorillawalker.com/the-train-never-stops-in-dixon-carissa-carpenter-promised-to.pdf
    • http://www.gorillawalker.com/northfield-a-western-story.pdf
    • http://www.gorillawalker.com/helicopter-structure-and-design-paperback.pdf
    • http://www.gorillawalker.com/a-muslim-theologian-in-the-sectarian-milieu-abd-al-jabbar.pdf
    • http://www.gorillawalker.com/anales-de-la-universidad-de-chile-volume-13-spanish-edition.pdf
    • http://www.gorillawalker.com/vergleich-der-aufgaben-und-befugnisse-von-betriebsr-ten-in-deutschland.pdf
    • http://www.gorillawalker.com/essentials-of-international-management.pdf
    • http://www.gorillawalker.com/algarve-sardine-story-algarve-stories-kindle-edition.pdf
    • http://www.gorillawalker.com/zero-hour-resident-evil-series-book-0.pdf
    • http://www.gorillawalker.com/the-new-art-of-managing-people-updated-and-revised-person.pdf
    • http://www.gorillawalker.com/the-real-low-down-dirty-truth-about-hollywood-agenting-the.pdf
    • http://www.gorillawalker.com/ynt-magazine-kindle-edition.pdf
    • http://www.gorillawalker.com/semiotics-an-introductory-anthology-advances-in-semiotics.pdf
    • http://www.gorillawalker.com/language-in-mathematics.pdf
    • http://www.gorillawalker.com/tao-te-ching-dao-de-jing-lao-tzu-s-book.pdf
    • http://www.gorillawalker.com/hawker-siddeley-aviation-and-dynamics-1960-77-crowood-aviation-series.pdf
    • http://www.gorillawalker.com/jazz-ballads-jazz-guitar-chord-melody-solos.pdf
    • http://www.gorillawalker.com/what-you-own-unabridged-audible-audio-edition.pdf
    • http://www.gorillawalker.com/come-and-take-them-carerra.pdf
    • http://www.gorillawalker.com/dictators-in-the-mirror-of-medicine-napoleon-hitler-stalin.pdf
    • http://www.gorillawalker.com/the-2013-2018-outlook-for-bioinformatics-software-for-predictive-modeling.pdf
    • http://www.gorillawalker.com/quack-the-duck-mr-whiskers-little-moral-book-series-1.pdf
    • http://www.gorillawalker.com/modern-theories-of-drama-a-selection-of-writings-on-drama.pdf
    • http://www.gorillawalker.com/race-and-social-equity-a-nervous-area-of-government-2014.pdf
    • http://www.gorillawalker.com/mathematic-studies-examination-preparation-and-practice-guide.pdf
    • http://www.gorillawalker.com/la-parilla-the-mexican-grill.pdf
    • http://www.gorillawalker.com/surgery-of-the-liver-and-biliary-tract.pdf
    • http://www.gorillawalker.com/writings-of-eugene-v-debs-a-collection-of-essays-by.pdf
    • http://www.gorillawalker.com/u-turn-screenplay.pdf
    • http://www.gorillawalker.com/king-jesus-hath-a-garden-vocal-score.pdf
    • http://www.gorillawalker.com/vocabulaire-en-ac
    • 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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