Malicious PDF — malware analysis report

Static analysis result for SHA-256 14723eba8ea20e3a…

MALICIOUS

PDF

41.6 KB Created: 2018-11-14 08:19:50 +03:00 Authoring application: doPDF Ver 7.1 Build 349 (Windows XP Professional Edition (SP 3) - Version: 5.1.2600 (x86))
MD5: ce29013d022acb1b0fa2299421e22424 SHA-1: e566698a778e016f79dec7b2bfec1e7162f0bc71 SHA-256: 14723eba8ea20e3a015953c293905f1393fd0903ab9f19eac320edbee86264f1
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. While the document body is heavily obfuscated, the presence of numerous links to external PDF files suggests an attempt to manipulate search engine rankings or to distribute content from a large link farm. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9181

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/chris-van-allsburg-children-s-illustrators-set-i-library-binding.pdf
    • http://www.gorillawalker.com/the-blue-moon-mysteries-of-sparrow-island-series-3.pdf
    • http://www.gorillawalker.com/dosage-calculations-book-only.pdf
    • http://www.gorillawalker.com/aulus-gellius-attic-nights-volume-ii-books-6-13-loeb.pdf
    • http://www.gorillawalker.com/anuario-hidrograf-co-de-la-marina-de-chile-volume-7.pdf
    • http://www.gorillawalker.com/el-d-a-de-los-santos-equipando-a-los-creyentes.pdf
    • http://www.gorillawalker.com/unbelievably-good-deals-and-great-adventures-that-you-absolutely-can.pdf
    • http://www.gorillawalker.com/awesome-town-the-social-life-kindle-edition.pdf
    • http://www.gorillawalker.com/adaptive-control-algorithms-analysis-and-applications-communications-and-control-engineering.pdf
    • http://www.gorillawalker.com/line-of-sight.pdf
    • http://www.gorillawalker.com/kayden-is-different-activity-book.pdf
    • http://www.gorillawalker.com/mt-john-151-the-first-50-years-a-celebration-of.pdf
    • http://www.gorillawalker.com/mapping-european-empire-tabulae-imperii-europaei-critical-european-studies.pdf
    • http://www.gorillawalker.com/girls-under-pressure-girls-quartet-book-2.pdf
    • http://www.gorillawalker.com/catholicism-and-jungian-psychology.pdf
    • http://www.gorillawalker.com/yoruba-legends.pdf
    • http://www.gorillawalker.com/physical-principles-of-wireless-communications-second-edition.pdf
    • http://www.gorillawalker.com/quickbooks-2013-all-in-one-for-dummies.pdf
    • http://www.gorillawalker.com/build-your-family-bank-a-winning-vision-for-multigenerational-wealth.pdf
    • http://www.gorillawalker.com/monsieur-ibrahim-and-the-flowers-methuen-drama-modern-plays.pdf
    • http://www.gorillawalker.com/black-holes-white-dwarfs-and-neutron-stars-the-physics-of.pdf
    • http://www.gorillawalker.com/wet-and-wired-a-pop-culture-encyclopedia-of-the-pacific.pdf
    • http://www.gorillawalker.com/new-performance-new-writing.pdf
    • http://www.gorillawalker.com/emerging-concepts-of-tumor-exosome-mediated-cell-cell-communication.pdf
    • http://www.gorillawalker.com/a-meeting-of-streams-south-asian-canadian-literature.pdf
    • http://www.gorillawalker.com/memory-from-cats-sheet-music.pdf
    • http://www.gorillawalker.com/the-country-between-us.pdf
    • http://www.gorillawalker.com/m3-m3a1-scout-car-and-m2-mortar-motor-carriage-technical.pdf
    • http://www.gorillawalker.com/manual-of-soft-tissue-management-in-orthopaedic-trauma-ao-trauma.pdf
    • http://www.gorillawalker.com/life-inside-a-bottle-my-journey-through-hell.pdf
    • http://www.gorillawalker.com/omega-born-scent-of-a-mate-6-siren-publishing-everlasting.pdf
    • http://www.gorillawalker.com/the-nat-handbook-implementing-and-managing-network-address-translation.pdf
    • http://www.gorillawalker.com/xuanzang-chinese-hero-houghton-mifflin-social-studies-leveled-readers.pdf
    • http://www.gorillawalker.com/heydrich-historia-siglo-xx-spanish-edition.pdf
    • http://www.gorillawalker.com/small-antenna-handbook.pdf
    • http://www.gorillawalker.com/operation-typhoon-shore-the-guild-of-specialists-2.pdf
    • http://www.gorillawalker.com/the-brief-penguin-handbook-4th-edition-faigley-penguin-franchise.pdf
    • http://www.gorillawalker.com/main-travelled-roads.pdf
    • http://www.gorillawalker.com/voting-access-for-disabled-and-long-term-care-voters-assessments.pdf
    • http://www.gorillawalker.com/2012-britannica-student-encyclopedia.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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