Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a9140b71d4c3f83…

MALICIOUS

PDF

42.4 KB Created: 2019-03-17 03:10:42 +03:00 Authoring application: dvips(k) 5.95a Copyright 2005 Radical Eye Software (via GPL Ghostscript 8.61)
MD5: a5355908a113302dbd62a30bc3b00b0f SHA-1: 9f9dd53ff9d73206ea63dba5901cb2bc6d1e10f2 SHA-256: 2a9140b71d4c3f83d27b191f654f39037d9da5c5636e23ff8af3480644edd0ae
90 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF contains a large number of embedded URLs pointing to other PDF files on the same domain, a technique often used for SEO manipulation or to host malicious content. The ML classifier also flagged this PDF as malicious. No scripts were extracted, and the document body was heavily obfuscated, limiting further analysis of the specific intent beyond link distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9027

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/en-espa-ol-cuaderno-para-hispanohablantes-workbook-level-3-spanish.pdf
    • http://www.gorillawalker.com/escape-and-evasion-elite-forces-survival-guides.pdf
    • http://www.gorillawalker.com/the-transforming-power-of-the-keys-of-the-kingdom-unlocking.pdf
    • http://www.gorillawalker.com/revival-large-print-faith-as-wesley-lived-it.pdf
    • http://www.gorillawalker.com/see-inside-fairyland-see-inside-board-books.pdf
    • http://www.gorillawalker.com/south-korea-survival-travel-conversation-2002-isbn-4877312544-japanese-import.pdf
    • http://www.gorillawalker.com/it-s-time-to-wine-down-wine-tasting-journal-diary.pdf
    • http://www.gorillawalker.com/best-karate-vol-1-comprehensive-best-karate-series.pdf
    • http://www.gorillawalker.com/leadership-glossary-essential-terms-for-the-21st-century.pdf
    • http://www.gorillawalker.com/christmas-jazzin-about-for-piano-keyboard-faber-edition-jazzin-about.pdf
    • http://www.gorillawalker.com/archangel-rising-episode-6-friends-in-low-places-kindle-edition.pdf
    • http://www.gorillawalker.com/celtic-prayers-and-reflections.pdf
    • http://www.gorillawalker.com/writings-and-speech-in-israelite-and-ancient-near-eastern-prophecy.pdf
    • http://www.gorillawalker.com/tree-houses-you-can-actually-build-a-weekend-project-book.pdf
    • http://www.gorillawalker.com/the-road-to-fellowship-the-role-of-the-emmanuel-movement.pdf
    • http://www.gorillawalker.com/amana-radarange-new-microwave-oven-cooking-guide.pdf
    • http://www.gorillawalker.com/hinduism-world-religions.pdf
    • http://www.gorillawalker.com/the-mah-jong-player-s-companion.pdf
    • http://www.gorillawalker.com/how-to-avoid-back-surgery-chiropractic.pdf
    • http://www.gorillawalker.com/virgins-behaving-badly-anthology.pdf
    • http://www.gorillawalker.com/essential-quantitative-methods-for-business-management-and-finance.pdf
    • http://www.gorillawalker.com/dysphagia-assessment-and-treatment-planning-workbook-a-team-approach.pdf
    • http://www.gorillawalker.com/u-s-civil-aircraft-series-vol-9-atc-801-817.pdf
    • http://www.gorillawalker.com/road-to-life.pdf
    • http://www.gorillawalker.com/spina-bifida-care-notebook.pdf
    • http://www.gorillawalker.com/until-nico-until-book-4-unabridged-audible-audio-edition.pdf
    • http://www.gorillawalker.com/the-yeomen-of-the-guard-or-the-merryman-and-his.pdf
    • http://www.gorillawalker.com/rattles-and-steadies-memoirs-of-a-gander-river-man-canada.pdf
    • http://www.gorillawalker.com/oral-morphine-in-advanced-cancer.pdf
    • http://www.gorillawalker.com/garde-manger-cold-kitchen-fundamentals.pdf
    • http://www.gorillawalker.com/honolulu-hi-city-county-street-folding-maps.pdf
    • http://www.gorillawalker.com/eyewitness-dvd-tree-eyewitness-videos.pdf
    • http://www.gorillawalker.com/crossing-over-coming-home.pdf
    • http://www.gorillawalker.com/basics-300-exercises-and-practice-routines-for-the-violin-by.pdf
    • http://www.gorillawalker.com/the-icd-guide-to-collaborating-with-professional-organizers-for-related.pdf
    • http://www.gorillawalker.com/nice-hit-you-can-play-baseball-game-day.pdf
    • http://www.gorillawalker.com/an-introduction-to-the-practical-study-of-crystals-minerals-and.pdf
    • http://www.gorillawalker.com/navigator-road-map-east-riding-of-yorkshire-philip-s-navigator.pdf
    • http://www.gorillawalker.com/eighteen-natural-ways-to-beat-the-common-cold-a-keats.pdf
    • http://www.gorillawalker.com/diagnosis-and-management-of-special-populations-mosby-s-optometric-problem.pdf
    • http://www.gorillawalker.com/
    • 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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