Malicious PDF — malware analysis report

Static analysis result for SHA-256 16d7a8099a6d9064…

MALICIOUS

PDF

42.0 KB Created: 2018-11-26 20:27:21 +03:00 Authoring application: doPDF Ver 7.1 Build 349 (Windows XP Professional Edition (SP 3) - Version: 5.1.2600 (x86))
MD5: cf65f24965853dc9adc527e214e9332b SHA-1: e269dfed1f62912d9ce39796e3edfbf0296dc1e6 SHA-256: 16d7a8099a6d90641c6a49af2efb20c92638db0654786f0a9a8644fb5e5ca22b
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, a technique often used for SEO manipulation or to distribute additional malicious content. The ML classifier also flagged this PDF as malicious with high confidence. While no scripts were explicitly extracted, the presence of numerous external links suggests a potential for further malicious activity.

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/a-bad-case-of-stripes-scholastic-bookshelf.pdf
    • http://www.gorillawalker.com/seminar-favorites-14-acrylic-painting-projects-volume-i-plaid-8327.pdf
    • http://www.gorillawalker.com/offset-lithography-a-treatise-on-printing-in-the-lithographic-manner.pdf
    • http://www.gorillawalker.com/tuscany-green-guide-michelin-promotional-pack.pdf
    • http://www.gorillawalker.com/carl-fischer-celebrated-method-for-the-clarinet.pdf
    • http://www.gorillawalker.com/staying-clean-sober-complementary-and-natural-strategies-for-healing-the.pdf
    • http://www.gorillawalker.com/superman-on-radio-smithsonian-historical-performances.pdf
    • http://www.gorillawalker.com/pe-pp-pet-look-flat-for-first-half-2002-pricing.pdf
    • http://www.gorillawalker.com/through-these-blues.pdf
    • http://www.gorillawalker.com/anatomy-coloring-workbook-3rd-edition-coloring-workbooks.pdf
    • http://www.gorillawalker.com/friends-make-the-best-medicine-a-guide-to-creating-community.pdf
    • http://www.gorillawalker.com/confessions-of-a-showman-my-life-in-the-circus.pdf
    • http://www.gorillawalker.com/southwestern-desert-resources.pdf
    • http://www.gorillawalker.com/city-trains-all-aboard.pdf
    • http://www.gorillawalker.com/el-ruido-industrial-y-su-control-teor-a-y-pr.pdf
    • http://www.gorillawalker.com/partial-genealogy-of-the-ferris-family.pdf
    • http://www.gorillawalker.com/final-exit-the-practicalities-of-self-deliverance-and-assisted-suicide.pdf
    • http://www.gorillawalker.com/understanding-americans-with-disabilities-act-third-edition.pdf
    • http://www.gorillawalker.com/abhb-annual-bibliography-of-the-history-of-the-printed-book.pdf
    • http://www.gorillawalker.com/annual-editions-western-civilization-volume-1-the-earliest-civilizations-through.pdf
    • http://www.gorillawalker.com/oil-rigs-picture-library.pdf
    • http://www.gorillawalker.com/exponential-series-complete-set.pdf
    • http://www.gorillawalker.com/round-peak-style-old-time-fiddle.pdf
    • http://www.gorillawalker.com/winning-systems-on-slots-championship-methods-that-win.pdf
    • http://www.gorillawalker.com/mastering-algorithms-with-perl-kindle-edition.pdf
    • http://www.gorillawalker.com/love-bites-my-sister-the-vampire.pdf
    • http://www.gorillawalker.com/frommer-s-honolulu-and-oahu-day-by-day.pdf
    • http://www.gorillawalker.com/mongolia-today-a-traveller-s-guide-geography-nature-hunting-museums.pdf
    • http://www.gorillawalker.com/temporary-access-to-the-workface-a-handbook-for-young-professionals.pdf
    • http://www.gorillawalker.com/geek-bearing-gifts-paranormal-dating-agency-book-2-kindle-edition.pdf
    • http://www.gorillawalker.com/the-veil-kindle-edition.pdf
    • http://www.gorillawalker.com/simply-integrity-two-and-three-part-arrangements-cd.pdf
    • http://www.gorillawalker.com/clay-modeling-fun-creative-fun.pdf
    • http://www.gorillawalker.com/annapurna-south-face.pdf
    • http://www.gorillawalker.com/used-porsche-944-buyer-s-guide.pdf
    • http://www.gorillawalker.com/mesopotamian-myths-and-epics-analecta-gorgiana.pdf
    • http://www.gorillawalker.com/problem-solving-through-problems-problem-books-in-mathematics.pdf
    • http://www.gorillawalker.com/tabloid-love.pdf
    • http://www.gorillawalker.com/senor-triangulo-mr-triangle-spanish-language-edition-mis-figuras-geometricas.pdf
    • http://www.gorillawalker.com/beast-the-submissively-ever-after-series-book-1.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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