Malicious PDF — malware analysis report

Static analysis result for SHA-256 38deb98c4a7f671e…

MALICIOUS

PDF

44.7 KB Created: 2018-11-30 20:30:22 +03:00 Authoring application: LaTeX with hyperref package (via pdfTeX-1.40.9)
MD5: ec4a06f1bee0046d3add7792f6582d04 SHA-1: 5766021b40908f2d216b9aa434ba64f357a7f222 SHA-256: 38deb98c4a7f671ee488274f20d6d90e3e975d8a1f6261e22dc0bc2c2bcab3b3
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links pointing to external PDF files, primarily hosted on www.gorillawalker.com. This behavior is indicative of a link farm or SEO manipulation tactic. The ML classifier also flagged this PDF as malicious. No scripts were extracted, and the document body was heavily obfuscated, making it difficult to determine a more specific attack pattern beyond the link distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9005

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/the-quilt-story.pdf
    • http://www.gorillawalker.com/international-politics-enduring-concepts-and-contemporary-issues-11th-edition.pdf
    • http://www.gorillawalker.com/handbook-of-human-factors-in-medical-device-design-bywiklund.pdf
    • http://www.gorillawalker.com/stress-diet-and-your-heart-a-lifetime-program-for-healing.pdf
    • http://www.gorillawalker.com/inspire-maths-pupil-book-5b.pdf
    • http://www.gorillawalker.com/get-your-game-face-on-table-tennis-kindle-edition.pdf
    • http://www.gorillawalker.com/hucow-fun-farm-books-1-7-bundle.pdf
    • http://www.gorillawalker.com/paisley-designs-coloring-book-dover-design-coloring-books.pdf
    • http://www.gorillawalker.com/holt-united-states-history-louisiana-test-prep-workbook-gradse-6.pdf
    • http://www.gorillawalker.com/150-album-tremolo-harmonica-so-love-revised-number-notation-2007.pdf
    • http://www.gorillawalker.com/information-fusion-in-signal-and-image-processing-major-probabilistic-and.pdf
    • http://www.gorillawalker.com/advanced-machine-tool-technology-and-manufacturing-processes-teachers-manual.pdf
    • http://www.gorillawalker.com/lectures-on-negative-dialectics-fragments-of-a-lecture-course-1965.pdf
    • http://www.gorillawalker.com/mangaka-america-manga-by-america-s-hottest-artists.pdf
    • http://www.gorillawalker.com/the-english-romantic-poets-a-review-of-research-and-criticism.pdf
    • http://www.gorillawalker.com/turning-tantrums-into-triumphs-the-science-of-parenting-toddler-tantrums.pdf
    • http://www.gorillawalker.com/the-hairstons-an-american-family-in-black-and-white.pdf
    • http://www.gorillawalker.com/the-last-word-the-new-york-times-book-of-obituaries.pdf
    • http://www.gorillawalker.com/90-days-one-day-at-a-time-a-new-beginning.pdf
    • http://www.gorillawalker.com/fluid-flow-phenomena-in-metals-processing.pdf
    • http://www.gorillawalker.com/pmp-certification-exam-simulation-questions-and-refined-solution-pmbok-2004.pdf
    • http://www.gorillawalker.com/record-breakers.pdf
    • http://www.gorillawalker.com/all-power-from-god-buying-power-in-the-american-dream.pdf
    • http://www.gorillawalker.com/jaypee-s-donald-school-video-atlas-of-ultrasound-in-fetal.pdf
    • http://www.gorillawalker.com/delius-a-life-in-letters-1909-1934-v-2-1909.pdf
    • http://www.gorillawalker.com/creation-evolution-and-intelligent-design-christian-answers-to-hard-questions.pdf
    • http://www.gorillawalker.com/towards-a-cultural-political-economy-putting-culture-in-its-place.pdf
    • http://www.gorillawalker.com/egyptian-mythology-the-ancient-secrets-revealed-ancient-egypt-gods-and.pdf
    • http://www.gorillawalker.com/inside-book-publishing.pdf
    • http://www.gorillawalker.com/an-american-book-of-the-dead-the-game-show.pdf
    • http://www.gorillawalker.com/tudor-cousins-rivals-for-the-throne.pdf
    • http://www.gorillawalker.com/red-hot-mama-bud-cooper-fred-rose-gilbert-wells-piano.pdf
    • http://www.gorillawalker.com/great-classic-mysteries-ii.pdf
    • http://www.gorillawalker.com/q-a-revision-guide-law-of-torts-2015-and-2016.pdf
    • http://www.gorillawalker.com/classic-soul-audition-songs-for-male-singers-piano-vocal-guitar.pdf
    • http://www.gorillawalker.com/arnold-schwarzenegger-biography-lerner-hardcover.pdf
    • http://www.gorillawalker.com/five-years-of-a-hunter-s-life-in-the-far.pdf
    • http://www.gorillawalker.com/kommunikation-in-verteilten-anwendungen-einfuhrung-in-sockets-java-rmi-corba.pdf
    • http://www.gorillawalker.com/the-heath-anthology-of-american-literature-concise-edition.pdf
    • http://www.gorillawalker.com/stanislaw-petrow-der-mann-der-den-atomkrieg-verhinderte-german-edition.pdf
    • http://www.gorillawalker.com/holt
    • 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/

Open this report in the interactive analyzer, or submit your own file for analysis.