Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e632c790856fc21…

MALICIOUS

PDF

43.5 KB Created: 2018-11-30 20:31:39 +03:00 Authoring application: PrimoPDF http://www.primopdf.com (via Nitro PDF PrimoPDF)
MD5: df1f33f77b72c12fde93e82058917406 SHA-1: 8feccdcdcaa4e5b12d2e1d94060cc883885a8306 SHA-256: 8e632c790856fc21e7389cf91b49fe5b50d2dff2f9718dba9ad47c0cd7f5248c
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Phishing:Spearphishing Attachment T1059.001 Command and Scripting Interpreter: PowerShell

The PDF file was flagged by a machine learning classifier as malicious. A critical heuristic identified a large number of embedded external links, suggesting a link farm or a method to distribute further malicious content. The document body contains numerous URLs pointing to PDFs hosted on the same domain, likely intended to lure users into clicking and downloading potentially harmful files.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8859

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/dancing-days-the-choreography-drought-is-over-on-broadway-column.pdf
    • http://www.gorillawalker.com/netter-s-surgical-anatomy-and-approaches-1e-netter-clinical-science.pdf
    • http://www.gorillawalker.com/global-studies-russia-and-the-near-abroad.pdf
    • http://www.gorillawalker.com/travel-game-mania-paperback.pdf
    • http://www.gorillawalker.com/women-in-world-history-v-1-readings-from-prehistory-to.pdf
    • http://www.gorillawalker.com/hayek-and-popper-on-rationality-economism-and-democracy-routledge-studies.pdf
    • http://www.gorillawalker.com/trainloads-of-color-thomas-friends-color-and-paint-plus-stickers.pdf
    • http://www.gorillawalker.com/learning-to-re-member-the-things-we-ve-learned-to.pdf
    • http://www.gorillawalker.com/the-history-of-the-jews-of-italy.pdf
    • http://www.gorillawalker.com/european-construction-procedures-and-techniques-building-surveying-series.pdf
    • http://www.gorillawalker.com/backboard-fever-chip-hilton-sports-series.pdf
    • http://www.gorillawalker.com/the-one-year-women-s-friendship-devotional.pdf
    • http://www.gorillawalker.com/tales-of-the-hare-the-biography-of-francis-tito-lelievre.pdf
    • http://www.gorillawalker.com/how-to-play-your-best-golf-all-the-time.pdf
    • http://www.gorillawalker.com/style-rx-dressing-the-body-you-have-to-create-the.pdf
    • http://www.gorillawalker.com/triple-jeopardy-for-the-west-aggressive-secularism-radical-islamism-and.pdf
    • http://www.gorillawalker.com/bob-kleberg-and-the-king-ranch.pdf
    • http://www.gorillawalker.com/i-chronicles-1-9-a-new-translation-with-introduction-and.pdf
    • http://www.gorillawalker.com/zhang-xin-on-the-return-to-china.pdf
    • http://www.gorillawalker.com/the-american-medical-association-home-medical-library-10-vol-set.pdf
    • http://www.gorillawalker.com/kautilya-s-arthashastra.pdf
    • http://www.gorillawalker.com/take-off.pdf
    • http://www.gorillawalker.com/best-baby-products-consumer-reports-best-baby-products.pdf
    • http://www.gorillawalker.com/the-yom-kippur-war-the-epic-encounter-that-transformed-the.pdf
    • http://www.gorillawalker.com/saint-joseph-sunday-missal-prayerbook-and-hymnal.pdf
    • http://www.gorillawalker.com/dior-the-new-look-revolution.pdf
    • http://www.gorillawalker.com/wealth-transfer-planning-and-drafting-american-casebooks-american-casebook-series.pdf
    • http://www.gorillawalker.com/tales-from-the-emerald-isle-and-other-green-shores-classic.pdf
    • http://www.gorillawalker.com/itty-bitty-kitty-guide-to-lighthouses-of-pennsylvania-kindle-edition.pdf
    • http://www.gorillawalker.com/everything-we-know-is-wrong-the-trendspotter-s-handbook.pdf
    • http://www.gorillawalker.com/the-illustrated-guide-to-viking-martial-arts.pdf
    • http://www.gorillawalker.com/the-queen-of-france-junior-library-guild-selection.pdf
    • http://www.gorillawalker.com/cavalleria-rusticana-prelude-siciliana-tuba-part-qty-4-a1688.pdf
    • http://www.gorillawalker.com/japan-s-modern-history-1857-1937-a-new-political-narrative.pdf
    • http://www.gorillawalker.com/prealgebra-3rd-edition.pdf
    • http://www.gorillawalker.com/the-trouble-with-magic.pdf
    • http://www.gorillawalker.com/termination-orders-a-dan-morgan-thriller-kindle-edition.pdf
    • http://www.gorillawalker.com/sun-ethnicity-links-questioned-in-actinic-prurigo-an-article-from.pdf
    • http://www.gorillawalker.com/war-of-the-dead-chapter-2-savage-worlds.pdf
    • http://www.gorillawalker.com/falling-out-of-fate.pdf
    • http://www.primopdf.com
    • http://www.gorillawalker.com/trainloads-of-color-thoma
    • 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#
    +1 more URL(s)

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