Malicious PDF — malware analysis report

Static analysis result for SHA-256 6aa0618d5e77a3de…

MALICIOUS

PDF

44.5 KB Created: 2019-01-06 08:02:52 +03:00 Authoring application: Microsoft Word: LaserWriter 8 8.6.5 (via Acrobat Distiller 4.0 for Macintosh)
MD5: 67067edb935d9517fa52271ddf823867 SHA-1: b5054d8c9f78f2a7817a005e80251754fe519ab7 SHA-256: 6aa0618d5e77a3dedf7f3c2d93e001d8038a1b1682cc01a4b8b9b97c9f522b16
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF was flagged by ClamAV as a dropper and an ML classifier indicated maliciousness. The heuristic PDF_SEO_LINK_FARM indicates the presence of numerous external links, suggesting a link farm or distribution mechanism. While no scripts were extracted, the sheer volume of embedded URLs points towards an attempt to redirect the user or serve additional content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9007

Heuristics 3

  • 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.
  • ClamAV: Pdf.Dropper.Agent-7269462-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7269462-0
  • 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/guia-practica-de-reflexologia-vida-y-salud-life-and-health.pdf
    • http://www.gorillawalker.com/grace-a-child-s-intimate-journey-through-cancer-and-recovery.pdf
    • http://www.gorillawalker.com/english-pali-dictionary.pdf
    • http://www.gorillawalker.com/the-eternal-moment-essays-on-the-photographic-image-aperture-writers.pdf
    • http://www.gorillawalker.com/baedeker-rhine-baedeker-s-travel-guides.pdf
    • http://www.gorillawalker.com/laminated-rio-de-janeiro-map-by-borch-english-spanish-french.pdf
    • http://www.gorillawalker.com/ethnic-conflict-and-civic-life-hindus-and-muslims-in-india.pdf
    • http://www.gorillawalker.com/creative-physics-problems-for-physics-with-calculus-mechanics-volume-1.pdf
    • http://www.gorillawalker.com/les-h-ros-de-la-strat-gie-l-ex-cution.pdf
    • http://www.gorillawalker.com/niv-favorite-bible-verses.pdf
    • http://www.gorillawalker.com/splendid-samplers-to-cross-stitch-35-original-projects.pdf
    • http://www.gorillawalker.com/lions-and-bears-the-story-of-david-the-shepherd-boy.pdf
    • http://www.gorillawalker.com/calligraphy-from-beginner-to-expert-usborne-kid-kits.pdf
    • http://www.gorillawalker.com/wrist-tendonitis-and-wrist-pain-non-surgical-remedies.pdf
    • http://www.gorillawalker.com/popular-tunes-for-recorder-35-tunes-also-suitable-for-the.pdf
    • http://www.gorillawalker.com/audel-mechanical-trades-pocket-manual.pdf
    • http://www.gorillawalker.com/my-religion-your-religion-cloverleaf-books-alike-and-different.pdf
    • http://www.gorillawalker.com/no-easy-day-the-only-first-hand-account-of-the.pdf
    • http://www.gorillawalker.com/electro-plating-for-the-amateur.pdf
    • http://www.gorillawalker.com/differential-diagnosis-in-abdominal-ultrasound.pdf
    • http://www.gorillawalker.com/rosslyn-revealed-a-library-in-stone.pdf
    • http://www.gorillawalker.com/william-james-s-springs-of-delight-the-return-to-life.pdf
    • http://www.gorillawalker.com/ciso-soft-skills-securing-organizations-impaired-by-employee-politics-apathy.pdf
    • http://www.gorillawalker.com/managing-the-normal-behaviour-of-young-children.pdf
    • http://www.gorillawalker.com/blackmailing-the-babysitter-taboo-lesbian-erotica-kindle-edition.pdf
    • http://www.gorillawalker.com/don-t-put-dave-in-the-microwave-poetry.pdf
    • http://www.gorillawalker.com/bloody-lily-sous-l-emprise-du-vampire-8-french-edition.pdf
    • http://www.gorillawalker.com/the-alphabet-structure-how-science-works-in-interdisciplinary-studies-the.pdf
    • http://www.gorillawalker.com/gimnasia-ritmica-deportiva-teoria-y-practica-spanish-edition.pdf
    • http://www.gorillawalker.com/no-one-s-the-bitch-a-ten-step-plan-for.pdf
    • http://www.gorillawalker.com/learning-the-art-of-helping-building-blocks-and-techniques-4th.pdf
    • http://www.gorillawalker.com/king-larry-the-life-and-ruins-of-a-billionaire-genius.pdf
    • http://www.gorillawalker.com/camino-al-orgasmo-la-sexualidad-femenina-sin-secretos.pdf
    • http://www.gorillawalker.com/accident-reconstruction-2004-sp-1873.pdf
    • http://www.gorillawalker.com/the-motion-picture-mega-industry-part-of-the-allyn-bacon.pdf
    • http://www.gorillawalker.com/finsteraarhorn.pdf
    • http://www.gorillawalker.com/lippincott-coursepoint-for-maternal-child-health-nursing-care-of-the.pdf
    • http://www.gorillawalker.com/luc-van-tien-ca-dien-french-edition.pdf
    • http://www.gorillawalker.com/bannock-and-beans-a-cowboy-s-account-of-the-bedaux.pdf
    • http://www.gorillawalker.com/original-365-jokes-puns-and-riddles.pdf
    • 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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