Malicious PDF — malware analysis report

Static analysis result for SHA-256 c8c309823ef49592…

MALICIOUS

PDF

40.3 KB Created: 2018-11-26 20:09:32 +03:00 Authoring application: FrameMaker 9.0 (via Acrobat Distiller 8.0.0 (Windows))
MD5: ebf222f1d977f288c1988519d1c4027d SHA-1: 902ffbc284f2b5d8e3df270c4e77c8e968cdb5d4 SHA-256: c8c309823ef49592503322dd02e94817a364f456e2dab748df305e467ce4bc05
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded URLs pointing to external PDF files, a technique often used for SEO manipulation or to distribute further malicious content. The ML classifier also flagged this PDF as malicious. No scripts were extracted from this sample, and the document body was heavily obfuscated, limiting further analysis of the specific lure.

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/knowledge-management-critical-perspectives-on-business-and-management-v-1.pdf
    • http://www.gorillawalker.com/eleanor-picture-puffin-books.pdf
    • http://www.gorillawalker.com/the-cardboard-box-book-25-things-to-make-and-do.pdf
    • http://www.gorillawalker.com/ethical-theory-an-anthology.pdf
    • http://www.gorillawalker.com/witchcraft-the-big-spell-book-the-ultimate-guide-to-witchcraft.pdf
    • http://www.gorillawalker.com/mapping-the-land-first-guides-to-maps.pdf
    • http://www.gorillawalker.com/electronica-de-potencia-componentes-topologias-y-equipos-spanish-edition.pdf
    • http://www.gorillawalker.com/whiter-than-snow.pdf
    • http://www.gorillawalker.com/superior-donuts-kindle-edition.pdf
    • http://www.gorillawalker.com/11-11-phenomena.pdf
    • http://www.gorillawalker.com/2008-cadillac-cts-snares-top-motor-trend-award-autos-articles.pdf
    • http://www.gorillawalker.com/why-people-kill-themselves-a-2000-summary-of-research-on.pdf
    • http://www.gorillawalker.com/degrassi-junior-high-spike.pdf
    • http://www.gorillawalker.com/using-logic-pro-synthesizers.pdf
    • http://www.gorillawalker.com/charley-s-war-vol-1-2-june-1-august-1916.pdf
    • http://www.gorillawalker.com/coconut-oil-hacks-secret-recipes-for-beautiful-and-healthy-skin.pdf
    • http://www.gorillawalker.com/6-sonatas-for-alto-saxophone-and-piano-by-benedetto-marcello.pdf
    • http://www.gorillawalker.com/life-in-me-like-grass-on-fire.pdf
    • http://www.gorillawalker.com/old-norse-religion-in-long-term-perspectives-origins-changes-interactions.pdf
    • http://www.gorillawalker.com/sorcery-in-the-black-atlantic.pdf
    • http://www.gorillawalker.com/rookie-privateer-privateer-tales-book-1-kindle-edition.pdf
    • http://www.gorillawalker.com/doodle-chicago-create-imagine-draw-your-way-through-the-windy.pdf
    • http://www.gorillawalker.com/the-anchor-book-of-modern-african-stories.pdf
    • http://www.gorillawalker.com/challenging-problems-in-geometry-dover-books-on-mathematics.pdf
    • http://www.gorillawalker.com/big-nate-pray-for-a-fire-drill-amp-comics-for.pdf
    • http://www.gorillawalker.com/injection-treatments-in-cosmetic-surgery-series-in-cosmetic-and-laser.pdf
    • http://www.gorillawalker.com/sport-marketing-3rd-edition.pdf
    • http://www.gorillawalker.com/herpes-herpes-cure-the-natural-herpes-cure-method-to-eliminate.pdf
    • http://www.gorillawalker.com/ocean-wave-energy-current-status-and-future-prespectives-green-energy.pdf
    • http://www.gorillawalker.com/physics-of-plasma-propulsion.pdf
    • http://www.gorillawalker.com/filosofia-oculta-hidden-philosphy-magia-natural-natural-magic-spanish-edition.pdf
    • http://www.gorillawalker.com/the-book-of-u-s-government-jobs-where-they-are.pdf
    • http://www.gorillawalker.com/tunugan-four-essays-on-filipino-music.pdf
    • http://www.gorillawalker.com/environmental-criminology-and-crime-analysis-crime-science-series.pdf
    • http://www.gorillawalker.com/lots-more-tell-me-why.pdf
    • http://www.gorillawalker.com/vampire-the-masquerade-volume-2-blood-and-shadows.pdf
    • http://www.gorillawalker.com/playtime-songs-play-a-song.pdf
    • http://www.gorillawalker.com/death-co-modern-classic-cocktails-with-more-than-500-recipes.pdf
    • http://www.gorillawalker.com/the-scorecard-killer-the-randy-kraft-story.pdf
    • http://www.gorillawalker.com/being-a-good-citizen-a-book-about-citizenship-way-to.pdf
    • http://www.gorillawa
    • 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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