Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee4c43253e6130da…

MALICIOUS

PDF

45.1 KB Created: 2019-03-18 06:17:30 +03:00 Authoring application: PScript5.dll Version 5.2 (via Acrobat Distiller 5.0.5 (Windows))
MD5: 14474e9c6701c028b603eb6fc55f35d6 SHA-1: 3798a2153ff6ce093e6312960104dbfc1f0b55b9 SHA-256: ee4c43253e6130da171c39b8334e9844dd93718e986f68e50b2d5ab0c324b64c
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, as indicated by the PDF_SEO_LINK_FARM heuristic. The ML classifier also flagged this PDF as malicious. The document body is heavily obfuscated and does not provide clear textual content, but the presence of numerous links suggests a link farm or redirection strategy to host malicious content. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8640

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/chicken-soup-for-the-soul-shaping-the-new-you-101.pdf
    • http://www.gorillawalker.com/the-case-for-stem-education-challenges-and-opportunities-kindle-edition.pdf
    • http://www.gorillawalker.com/suzuki-gs550-83-to-88-owners-workshop-manual.pdf
    • http://www.gorillawalker.com/renewables-are-getting-cheaper.pdf
    • http://www.gorillawalker.com/rabbits-backyard-animals.pdf
    • http://www.gorillawalker.com/jullien-treatise-on-efficacy-pa.pdf
    • http://www.gorillawalker.com/thinking-mathematically.pdf
    • http://www.gorillawalker.com/claws.pdf
    • http://www.gorillawalker.com/specials-audio-cd-audiobook.pdf
    • http://www.gorillawalker.com/newbie-s-master-of-all-position-chart-kindle-edition.pdf
    • http://www.gorillawalker.com/un-viaje-por-tierras-incaicas-cr-nica-de-una-expedici.pdf
    • http://www.gorillawalker.com/a-dispensing-optician-manual-an-introduction-to-vision-care-for.pdf
    • http://www.gorillawalker.com/monster-emotions-monsters-have-feelings-too-just-like-you.pdf
    • http://www.gorillawalker.com/pediatric-telephone-protocols-office-version.pdf
    • http://www.gorillawalker.com/modell-s-drugs-in-current-use-and-new-drugs-2000.pdf
    • http://www.gorillawalker.com/healing-depression-the-mind-body-way-creating-happiness-with-meditation.pdf
    • http://www.gorillawalker.com/24-caprices-for-solo-violin-op-1-caprice-no-24.pdf
    • http://www.gorillawalker.com/biosocial-criminology-introduction-and-integration.pdf
    • http://www.gorillawalker.com/administrative-law-law-school-legends-audio-series.pdf
    • http://www.gorillawalker.com/nick-fury-agent-of-s-h-i-e-l-d.pdf
    • http://www.gorillawalker.com/music-and-trance-a-theory-of-the-relations-between-music.pdf
    • http://www.gorillawalker.com/the-dragon-s-path-the-dagger-and-the-coin-series.pdf
    • http://www.gorillawalker.com/lions-2015-square-12x12-multilingual-edition.pdf
    • http://www.gorillawalker.com/an-introduction-to-agent-based-modeling-modeling-natural-social-and.pdf
    • http://www.gorillawalker.com/medicine-meets-virtual-reality-18-nextmed-volume-163-studies-in.pdf
    • http://www.gorillawalker.com/american-magna-carta.pdf
    • http://www.gorillawalker.com/the-psychiatric-team-and-the-social-definition-of-schizophrenia-an.pdf
    • http://www.gorillawalker.com/let-s-sell-these-people-a-piece-of-blue-sky.pdf
    • http://www.gorillawalker.com/white-hot-brown-sandra-spoken-word.pdf
    • http://www.gorillawalker.com/roma-antigua-y-moderna-su-origen-historia-gobierno-legislacion-costumbres.pdf
    • http://www.gorillawalker.com/grub-ideas-for-an-urban-organic-kitchen.pdf
    • http://www.gorillawalker.com/jack-s-notebook-a-business-novel-about-creative-problem-solving.pdf
    • http://www.gorillawalker.com/two-little-witches-a-halloween-counting-story-sticker-book.pdf
    • http://www.gorillawalker.com/the-abcs-of-curriculum-based-evaluation-a-practical-guide-to.pdf
    • http://www.gorillawalker.com/permian-brachiopods-of-west-texas-smithsonian-contributions-to-paleobiology.pdf
    • http://www.gorillawalker.com/sky-sports-football-yearbook-2014-2015-sky-sports-football-yearbook.pdf
    • http://www.gorillawalker.com/learning-from-the-textbook-chinese-folk-dancing-tutorial-with-a.pdf
    • http://www.gorillawalker.com/diccionario-esencial-latino-espanol-latin-spanish-essential-dictionary-spanish-edition.pdf
    • http://www.gorillawalker.com/getting-bi-voices-of-bisexuals-around-the-world.pdf
    • http://www.gorillawalker.com/crete-pocket-guides.pdf
    • http://www.gori
    • 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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