Malicious PDF — malware analysis report

Static analysis result for SHA-256 e61f03fca7792206…

MALICIOUS

PDF

41.6 KB Created: 2018-11-26 20:05:28 +03:00 Authoring application: calibre 0.9.8 [http://calibre-ebook.com] (via PoDoFo - http://podofo.sf.net)
MD5: 8c62e2d6ef1ae0ae17eeb5e361f17867 SHA-1: 6b0c4002d77539e1e0c683d334464d2ad39e93de SHA-256: e61f03fca7792206a803af088ad5384f444ffd1333c5e87ca9deb715c3c0de46
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious File

The PDF file was flagged by a machine learning classifier as malicious and contains a large number of embedded external links. This suggests a link farm or SEO poisoning attack, where the document is designed to drive traffic to other sites or potentially host malicious content. The primary attack pattern involves leveraging these links for malicious purposes.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8872

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/alcohol-and-the-brain-chronic-effects.pdf
    • http://www.gorillawalker.com/practical-cheesemaking.pdf
    • http://www.gorillawalker.com/happiness-its-up-to-you-easy-steps-to-self-acceptance.pdf
    • http://www.gorillawalker.com/walking-for-fun-and-fitness-cengage-learning-activity.pdf
    • http://www.gorillawalker.com/african-american-history-teacher-guide-2008.pdf
    • http://www.gorillawalker.com/bold-brand-the-new-rules-for-differentiating-branding-and-marketing.pdf
    • http://www.gorillawalker.com/company-law-core-text.pdf
    • http://www.gorillawalker.com/the-taino-settlement-at-guayguata-excavations-in-st-mary-parish.pdf
    • http://www.gorillawalker.com/just-in-time-scheduling-models-and-algorithms-for-computer-and.pdf
    • http://www.gorillawalker.com/hard-evidence-dismas-hardy-book-3.pdf
    • http://www.gorillawalker.com/democratic-governance-and-non-state-actors.pdf
    • http://www.gorillawalker.com/from-daguerre-to-digital-150-years-of-classic-cameras.pdf
    • http://www.gorillawalker.com/acorns-and-eat-em-a-how-to-vegetarian-acorn-cookbook.pdf
    • http://www.gorillawalker.com/hermit-of-peking-the-hidden-life-of-sir-edmund-backhouse.pdf
    • http://www.gorillawalker.com/browning-machine-gun-caliber-50-hb-m2-ground.pdf
    • http://www.gorillawalker.com/how-to-beat-wall-street-everything-you-need-to-make.pdf
    • http://www.gorillawalker.com/panama-canal-zone.pdf
    • http://www.gorillawalker.com/huck-finn-s-america-mark-twain-and-the-era-that.pdf
    • http://www.gorillawalker.com/first-philosophy-second-edition-fundamental-problems-and-readings-in-philosophy.pdf
    • http://www.gorillawalker.com/death-of-a-salesman-bloom-s-modern-critical-interpretations.pdf
    • http://www.gorillawalker.com/anatomy-of-a-poet.pdf
    • http://www.gorillawalker.com/emergence-and-downward-determination-cybernetics-and-human-knowing.pdf
    • http://www.gorillawalker.com/deep-time-and-the-texas-high-plains-history-and-geology.pdf
    • http://www.gorillawalker.com/really-really-bad-school-jokes.pdf
    • http://www.gorillawalker.com/rightly-dividing-the-word-illustrated-kindle-edition.pdf
    • http://www.gorillawalker.com/the-egypt-game-literature-kit.pdf
    • http://www.gorillawalker.com/jacob-t-marley.pdf
    • http://www.gorillawalker.com/domestic-violence-in-the-lives-of-children-the-future-of.pdf
    • http://www.gorillawalker.com/stainless-steel-visions.pdf
    • http://www.gorillawalker.com/laney-the-brookehaven-vampires-volume-1.pdf
    • http://www.gorillawalker.com/storm-vol-2-bring-the-thunder.pdf
    • http://www.gorillawalker.com/international-management-behavior.pdf
    • http://www.gorillawalker.com/industrial-development-report-2013-sustaining-employment-growth-the-role-of.pdf
    • http://www.gorillawalker.com/the-serious-guitarist-blues-chops-a-technique-building-approach-for.pdf
    • http://www.gorillawalker.com/sunshine-and-storm-in-the-east-or-cruises-to-cyprus.pdf
    • http://www.gorillawalker.com/advocacy-bar-manuals.pdf
    • http://www.gorillawalker.com/guias-2005-de-la-american-heart-association-sobre-resucitacion-cardiopulmonar.pdf
    • http://www.gorillawalker.com/halo-blood-line-halo-marvel-paperback.pdf
    • http://www.gorillawalker.com/why-can-t-i-have-a-cupcake-a-book-for.pdf
    • http://www.gorillawalker.com/federico-fellini-interviews-conversations-with-filmmakers.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://calibre-ebook.com
    • http://ns.adobe.com/pdf/1.3/
    • http://podofo.sf.net
    • 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#
    +1 more URL(s)

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