Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd766a506617e620…

MALICIOUS

PDF

43.6 KB Created: 2018-11-30 20:23:58 +03:00 Authoring application: LaTeX with hyperref package (via pdfTeX-1.40.10)
MD5: daa7455eac650723463a13c1465cd91f SHA-1: ed54c5dd0a17160ed4bcabc34ac1f26c452478bc SHA-256: dd766a506617e62073e116e58fa192096e7403a27301776046c1a6cb5809e77f
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF contains a large number of embedded links 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, making it difficult to determine the exact user-facing lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8859

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/messiah-how-beautiful-are-the-feet-sheet-music.pdf
    • http://www.gorillawalker.com/art-of-the-odyssey.pdf
    • http://www.gorillawalker.com/in-my-father-s-house-africa-in-the-philosophy-of.pdf
    • http://www.gorillawalker.com/the-book-of-common-prayer-and-administration-of-the-sacraments.pdf
    • http://www.gorillawalker.com/737ng-training-syllabus-for-flight-simulation-flight-simmer-training-manuals.pdf
    • http://www.gorillawalker.com/seriously-i-m-kidding.pdf
    • http://www.gorillawalker.com/combustion-from-basics-to-applications.pdf
    • http://www.gorillawalker.com/how-to-write-scientific-and-technical-papers.pdf
    • http://www.gorillawalker.com/conduct-disorders-and-severe-antisocial-behavior-clinical-child-psychology-library.pdf
    • http://www.gorillawalker.com/listomania-a-world-of-fascinating-facts-in-graphic-detail.pdf
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    • http://www.gorillawalker.com/strategic-perspectives-of-unconventional-gas-a-game-changer-with-implications.pdf
    • http://www.gorillawalker.com/policing-public-sex-queer-politics-and-the-future-of-aids.pdf
    • http://www.gorillawalker.com/montana-blue-ribbon-fly-fishing-guide.pdf
    • http://www.gorillawalker.com/sites-of-memory-sites-of-mourning-the-great-war-in.pdf
    • http://www.gorillawalker.com/japanese-gothic-tales.pdf
    • http://www.gorillawalker.com/irish-dinner-38-recipes-for-st-patrick-s-day-or.pdf
    • http://www.gorillawalker.com/o-curioso-caso-de-benjamin-button-portuguese-edition-kindle-edition.pdf
    • http://www.gorillawalker.com/scotland-bed-and-breakfast-1989.pdf
    • http://www.gorillawalker.com/fulcanelli-and-the-alchemical-revival-the-man-behind-the-mystery.pdf
    • http://www.gorillawalker.com/adult-children-of-abusive-parents-a-heaing-program-for-those.pdf
    • http://www.gorillawalker.com/to-speak-is-never-neutral.pdf
    • http://www.gorillawalker.com/earth-space-science-basic-not-boring-6-8-inventive-exercises.pdf
    • http://www.gorillawalker.com/mrs-lincoln-s-dressmaker.pdf
    • http://www.gorillawalker.com/keynes-s-way-to-wealth-timeless-investment-lessons-from-the.pdf
    • http://www.gorillawalker.com/forking-around-science-fiction-erotic-romance-audrey-s-steamy-shorts.pdf
    • http://www.gorillawalker.com/esztergom-hungarian-edition.pdf
    • http://www.gorillawalker.com/strategies-for-creative-problem-solving-2nd-edition.pdf
    • http://www.gorillawalker.com/innocent-prey-a-brown-and-de-luca-novel.pdf
    • http://www.gorillawalker.com/in-the-hand-of-the-goddess-song-of-the-lioness.pdf
    • http://www.gorillawalker.com/berne-convention-on-nature-conservation.pdf
    • http://www.gorillawalker.com/brunner-and-suddarth-s-textbook-of-canadian-medical-surgical-nursing.pdf
    • http://www.gorillawalker.com/ad-le-a-novel.pdf
    • http://www.gorillawalker.com/home-and-family-relationships-teens-being-gay-lesbian-bisexual-or.pdf
    • http://www.gorillawalker.com/coparenting-tips-for-stepmoms-kindle-edition.pdf
    • http://www.gorillawalker.com/game-theory-for-political-scientists.pdf
    • http://www.gorillawalker.com/a-new-britannia-an-argument-concerning-the-social-origins-of.pdf
    • http://www.gorillawalker.com/1-000-years-of-diabetes-wisdom.pdf
    • http://www.gorillawalker.com/belongs-to-joe.pdf
    • http://www.gorillawalker.com/apparition-the-hungry-ghosts.pdf
    • http://www.gorillawalker.com/how-to
    • 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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