Malicious PDF — malware analysis report

Static analysis result for SHA-256 34e69b589672212a…

MALICIOUS

PDF

46.2 KB Created: 2018-12-14 20:01:07 +03:00 Authoring application: Acrobat 5.0 Image Conversion Plug-in for Windows
MD5: 5dd67cc7a4086a3fbe4a13bdfc68b7fd SHA-1: 254b2b0dda5e68a44561d19a3f2e0dc1fec9a61c SHA-256: 34e69b589672212aef554e5c92518fbfe292b4a060a754391762540083114d82
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

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 lures, but the sheer volume of links suggests a malicious intent, possibly for SEO spam or to redirect users to malicious sites. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8634

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-boston-book-market-1679-1700.pdf
    • http://www.gorillawalker.com/the-declaration-of-independence-origins-and-impact-landmark-events-in.pdf
    • http://www.gorillawalker.com/favorite-jazz-for-flute.pdf
    • http://www.gorillawalker.com/a-treatise-on-limnology-hardcover.pdf
    • http://www.gorillawalker.com/the-history-of-the-yorubas-from-the-earliest-times-to.pdf
    • http://www.gorillawalker.com/arthur-miller-a-critical-study.pdf
    • http://www.gorillawalker.com/best-dixieland-songs-ever.pdf
    • http://www.gorillawalker.com/stanislavsky-in-practice-actor-training-in-post-soviet-russia-artists.pdf
    • http://www.gorillawalker.com/modular-series-on-solid-state-devices.pdf
    • http://www.gorillawalker.com/playing-the-string-game-strategies-for-teaching-cello-and-strings.pdf
    • http://www.gorillawalker.com/disney-movie-favorites-easy-violin-instrumental-solos-easy-play-series.pdf
    • http://www.gorillawalker.com/incredible-hulk-1962-1999-400.pdf
    • http://www.gorillawalker.com/my-little-pony-ponies-love-pets-passport-to-reading-level.pdf
    • http://www.gorillawalker.com/the-gladiator-s-mistress-champions-of-rome.pdf
    • http://www.gorillawalker.com/perspectives-on-learning-fifth-edition-thinking-about-education-series.pdf
    • http://www.gorillawalker.com/anatagaahuxirieitodekasegenairiyuu-kasegeruhukugyoukasegenaihukugyou-japanese-edition-kindle-edition.pdf
    • http://www.gorillawalker.com/the-secret-history-of-dreaming.pdf
    • http://www.gorillawalker.com/medio-tiempo.pdf
    • http://www.gorillawalker.com/sibelius-symphony-no-5-cambridge-music-handbooks.pdf
    • http://www.gorillawalker.com/modern-quantum-field-theory-a-concise-introduction-kindle-edition.pdf
    • http://www.gorillawalker.com/grand-canyon-and-beyond-usa-and-canada-series-book-2.pdf
    • http://www.gorillawalker.com/god-s-mission-and-postmodern-culture-the-gift-of-uncertainity.pdf
    • http://www.gorillawalker.com/the-chocolate-coffee-bible-over-300-delicious-easy-to-make.pdf
    • http://www.gorillawalker.com/wonder-horse.pdf
    • http://www.gorillawalker.com/classical-and-romantic-pieces-for-violin-book-2-piano-score.pdf
    • http://www.gorillawalker.com/tradition-in-a-rootless-world-women-turn-to-orthodox-judaism.pdf
    • http://www.gorillawalker.com/export-import-procedures.pdf
    • http://www.gorillawalker.com/k-taping-praxishandbuch-grundlagen-anlagetechniken-indikationen-german-edition.pdf
    • http://www.gorillawalker.com/iso-4238-1976-cinematography-optical-printing-ratios-for-enlargement-and.pdf
    • http://www.gorillawalker.com/argumentos-antinatalistas-y-c-mo-rebatirlos-spanish-edition.pdf
    • http://www.gorillawalker.com/breaking-free-a-prescription-for-personal-and-organizational-change.pdf
    • http://www.gorillawalker.com/secondary-stages-revitalizing-high-school-theatre.pdf
    • http://www.gorillawalker.com/the-car-book-2014-america-most-comprehensive-car-buying-guide.pdf
    • http://www.gorillawalker.com/ice-creams-water-ices-frozen-puddings-together-with-refreshments-for.pdf
    • http://www.gorillawalker.com/change-your-diet-save-your-life-anti-cancer-diet-recipes.pdf
    • http://www.gorillawalker.com/electric-power-system-basics-for-the-nonelectrical-professional-ieee-press.pdf
    • http://www.gorillawalker.com/sex-addiction-and-real-life-stories-help-and-healing-for.pdf
    • http://www.gorillawalker.com/the-basque-history-of-the-world-the-story-of-a.pdf
    • http://www.gorillawalker.com/the-sea-volume-16-marine-ecosystem-based-management-the-sea.pdf
    • http://www.gorillawalker.com/the-dead-sea-scrolls-today-rev-ed-kindle-edition.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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