Malicious PDF — malware analysis report

Static analysis result for SHA-256 724fdfab6a8b6457…

MALICIOUS

PDF

32.0 KB Created: 2019-12-13 16:31:52 +03:00 Authoring application: Adobe InDesign CS5_J (7.0.4) (via Acrobat Distiller 9.5.0 (Windows))
MD5: a376d9a7b5abeaf57a221e3d91e68a67 SHA-1: 46ab4762c63fb7d4d36aa10c5bc54abe7e43d636 SHA-256: 724fdfab6a8b645727eb07abb14ad842c3e8dd56bb446bae9900b1e52e702a79
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links pointing to external PDF files on the domain 'gorillawalker.com'. This heuristic firing suggests a link farm or SEO manipulation tactic. While no scripts were extracted, the sheer volume of links and the ML classifier's high confidence indicate malicious intent, likely to distribute further content or manipulate search engine results.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8447

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/introduction-to-tantra-the-transformation-of-desire.pdf
    • http://www.gorillawalker.com/the-caregiver-s-companion-caring-for-your-loved-one-medically.pdf
    • http://www.gorillawalker.com/the-tales-of-bunnihotep.pdf
    • http://www.gorillawalker.com/algebra-gre-preparation-guide-1st-edition-manhattan-gre-preparation-guide.pdf
    • http://www.gorillawalker.com/the-count-of-monte-cristo-volume-i-of-v.pdf
    • http://www.gorillawalker.com/romeo-and-juliet-shogakukan-manga-learning-world-masterpiece-building-2013.pdf
    • http://www.gorillawalker.com/without-bounds-a-scientific-canvas-of-nonlinearity-and-complex-dynamics.pdf
    • http://www.gorillawalker.com/biology-for-christian-schools-volumes-a-b.pdf
    • http://www.gorillawalker.com/cartagena-forever.pdf
    • http://www.gorillawalker.com/crypt-of-the-vampire.pdf
    • http://www.gorillawalker.com/the-last-days-of-nisargadatta-maharaj.pdf
    • http://www.gorillawalker.com/differential-geometry-from-singularity-theory-viewpoint.pdf
    • http://www.gorillawalker.com/principles-of-managerial-finance-brief-7th-edition-pearson-series-in.pdf
    • http://www.gorillawalker.com/irish-tales-of-the-supernatural.pdf
    • http://www.gorillawalker.com/the-love-wife.pdf
    • http://www.gorillawalker.com/adolf-loos-architecture-1903-1932-splendor-series.pdf
    • http://www.gorillawalker.com/drawing-inspiration-visual-artists-at-work.pdf
    • http://www.gorillawalker.com/neuro-linguistic-programming-protocols-for-change-an-instruction-manual-for.pdf
    • http://www.gorillawalker.com/hocking-hills-the-1900-1950-postcard-history.pdf
    • http://www.gorillawalker.com/north-true-south-bright.pdf
    • http://www.gorillawalker.com/pseudocereals-and-less-common-cereals.pdf
    • http://www.gorillawalker.com/mitsubishi-a5m-claude-yellow-series.pdf
    • http://www.gorillawalker.com/acting-for-animators.pdf
    • http://www.gorillawalker.com/adventuring-to-manhood.pdf
    • http://www.gorillawalker.com/simulation-using-promodel-with-cd-rom.pdf
    • http://www.gorillawalker.com/gandhi-kindle-edition.pdf
    • http://www.gorillawalker.com/escritores-delincuentes-hispanica-spanish-edition.pdf
    • http://www.gorillawalker.com/penthouse.pdf
    • http://www.gorillawalker.com/worlds-of-illness-biographical-and-cultural-perspectives-on-health-and.pdf
    • http://www.gorillawalker.com/moon-spotlight-albuquerque.pdf
    • http://www.gorillawalker.com/prayers-of-life.pdf
    • http://www.gorillawalker.com/evaluation-of-the-international-finance-corporation-s-global-trade-finance.pdf
    • http://www.gorillawalker.com/exploring-splunk-spl-korean-edition.pdf
    • http://www.gorillawalker.com/strange-music.pdf
    • http://www.gorillawalker.com/races-of-faerun-dungeons-dragons-d20-3-0-fantasy-roleplaying.pdf
    • http://www.gorillawalker.com/before-they-read-teaching-language-and-literacy-development-through-conversations.pdf
    • http://www.gorillawalker.com/coffee-cherry-cocoa-pod-the-coffee-addicts-and-chocoholics-handbook.pdf
    • http://www.gorillawalker.com/larousse-picture-dictionary-english-spanish-spanish-english-w-audio-cd.pdf
    • http://www.gorillawalker.com/it-s-time-to-learn-about-time-book-with-online.pdf
    • http://www.gorillawalker.com/paleo-diet-made-easy-basic-paleo-diet-facts-for-beginners.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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