Malicious PDF — malware analysis report

Static analysis result for SHA-256 e841179995f46468…

MALICIOUS

PDF

42.4 KB Created: 2018-11-26 20:12:29 +03:00 Authoring application: Adobe Illustrator CS3 (via Adobe PDF library 8.00)
MD5: 31bb20fa0b218d7b8222ed02f5a0e220 SHA-1: c4bc391ab54fd9de79435ea1bffd9860375dc39b SHA-256: e841179995f4646826d429d6d0c18b358cffbb5fb685a1aca47b32aca5c67f36
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, and the document body was heavily obfuscated, making it difficult to determine the exact malicious intent beyond the link farm.

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/the-american-demise-freedom-s-end-in-the-21st-century.pdf
    • http://www.gorillawalker.com/lung-disease-in-rheumatic-diseases-an-issue-of-rheumatic-disease.pdf
    • http://www.gorillawalker.com/reaching-one-thousand.pdf
    • http://www.gorillawalker.com/elements-of-quantum-theory.pdf
    • http://www.gorillawalker.com/matt-damon-galaxy-of-superstars.pdf
    • http://www.gorillawalker.com/ellipsis-in-english-literature-signs-of-omission.pdf
    • http://www.gorillawalker.com/on-independence-day-el-dia-de-la-independencia-holiday-happenings.pdf
    • http://www.gorillawalker.com/big-flavors-of-the-hot-sun-recipes-and-techniques-from.pdf
    • http://www.gorillawalker.com/crapman-icelandic-edition.pdf
    • http://www.gorillawalker.com/using-international-law-in-domestic-courts.pdf
    • http://www.gorillawalker.com/clep-college-mathematics-with-online-practice-tests.pdf
    • http://www.gorillawalker.com/customer-service-transformation-course-kindle-edition.pdf
    • http://www.gorillawalker.com/nefarious-deeds-stir-sticks-stilettos.pdf
    • http://www.gorillawalker.com/wedding-bells-love-for-a-lifetime-a-love-made-in.pdf
    • http://www.gorillawalker.com/introductory-oceanography-10th-edition.pdf
    • http://www.gorillawalker.com/formal-number-theory-bk-1.pdf
    • http://www.gorillawalker.com/allies-at-odds-america-europe-and-vietnam-1961-1968-vietnam.pdf
    • http://www.gorillawalker.com/the-zen-to-aloha-vibe-of-australia-s-greatest-east.pdf
    • http://www.gorillawalker.com/guide-to-voice-and-video-over-ip-for-fixed-and.pdf
    • http://www.gorillawalker.com/my-only-true-friend-the-beginning-kindle-edition.pdf
    • http://www.gorillawalker.com/the-vets-stephen-leather-thrillers.pdf
    • http://www.gorillawalker.com/charles-ray-sculpture-1997-2014.pdf
    • http://www.gorillawalker.com/gourmet-cooking-by-earl-peyroux-vol-5.pdf
    • http://www.gorillawalker.com/how-to-draw-portraits.pdf
    • http://www.gorillawalker.com/the-chicken-fried-rat-tales-too-groos-to-be-true.pdf
    • http://www.gorillawalker.com/battle-for-peace.pdf
    • http://www.gorillawalker.com/argentinian-paleo-cookbook-the-most-southern-latin-flavours-recipes-to.pdf
    • http://www.gorillawalker.com/soccer-techniques-tactics-teamwork.pdf
    • http://www.gorillawalker.com/spillover-animal-infections-and-the-next-human-pandemic.pdf
    • http://www.gorillawalker.com/bible-and-sword-england-and-palestine-from-the-bronze-age.pdf
    • http://www.gorillawalker.com/the-art-of-declarer-play.pdf
    • http://www.gorillawalker.com/andrew-lloyd-webber-the-beautiful-game-vocal-selections.pdf
    • http://www.gorillawalker.com/scandinavia-and-the-great-powers-1890-1940.pdf
    • http://www.gorillawalker.com/a-miami-love-tale-2.pdf
    • http://www.gorillawalker.com/gilbert-law-summaries-on-evidence-18th.pdf
    • http://www.gorillawalker.com/el-mar-de-los-monstruos-the-sea-of-monsters-percy.pdf
    • http://www.gorillawalker.com/john-brown-s-raid-on-harpers-ferry-graphic-history.pdf
    • http://www.gorillawalker.com/the-hot-mommy-next-door-a-quick-easy-and-effective.pdf
    • http://www.gorillawalker.com/lecce-tourist-map-laminated-in-english-by-lozzi-english-spanish.pdf
    • http://www.gorillawalker.com/beautiful-flowers-ch-version-author-viola-melanie.pdf
    • http://www.gorillawalker.com/big-flavors-
    • 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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