Malicious PDF — malware analysis report

Static analysis result for SHA-256 88e0b96ab2ab2ac9…

MALICIOUS

PDF

45.9 KB Created: 2018-12-07 18:27:44 +03:00 Authoring application: Acrobat PDFMaker 11 for Word (via Adobe PDF Library 11.0)
MD5: 83e42e0f35972443b3b11f7ab468a89e SHA-1: 4bc5b84cb65cc6f219a485788b549e45cd3a877f SHA-256: 88e0b96ab2ab2ac9040b1f48033fad8744bad9180aea8ff0ff9dbd13a1a68bb5
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links to external PDF files, as indicated by the PDF_SEO_LINK_FARM heuristic. The ML_NYX_PDF_MALICIOUS heuristic also flagged the document as malicious. The embedded URLs are likely used to drive traffic or distribute further malicious content, though no specific payload execution was observed directly from this PDF.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8173

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/diffraction-and-imaging-techniques-in-material-science-electron-microscopy-v.pdf
    • http://www.gorillawalker.com/kaplan-mcat-528-kaplan-test-prep.pdf
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    • http://www.gorillawalker.com/the-rationalists-between-tradition-and-innovation-the-new-synthese-historical.pdf
    • http://www.gorillawalker.com/cornstalks-and-cannonballs-on-my-own-books.pdf
    • http://www.gorillawalker.com/symphony-no-5-study-score.pdf
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    • http://www.gorillawalker.com/bayesian-networks-with-examples-in-r-chapman-hall-crc-texts.pdf
    • http://www.gorillawalker.com/the-drummer-s-complete-vocabulary-as-taught-by-alan-dawson.pdf
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    • http://www.gorillawalker.com/zen-in-the-art-of-archery-vintage-spiritual-classics-paperback.pdf
    • http://www.gorillawalker.com/crunchtime-constitutional-law.pdf
    • http://www.gorillawalker.com/akira-nishimura-improvisation-percussion-music-19-2003-isbn-4115502193-japanese.pdf
    • http://www.gorillawalker.com/vivid-and-continuous-essays-and-exercises-for-writing-fiction.pdf
    • http://www.gorillawalker.com/providence-the-silent-sovereignty-of-god.pdf
    • http://www.gorillawalker.com/the-busy-building-book.pdf
    • http://www.gorillawalker.com/shadow-of-empire-far-stars-book-one-far-star-trilogy.pdf
    • http://www.gorillawalker.com/reconstructing-a-bach-fugue-25-studies-on-bach-s-fugue.pdf
    • http://www.gorillawalker.com/dhs-efforts-to-screen-members-of-foreign-terrorist-organizations-kindle.pdf
    • http://www.gorillawalker.com/find-the-bastards-then-pile-on-11th-armored-cavalry-vietnam.pdf
    • http://www.gorillawalker.com/the-volunteer-tutor-s-toolbox.pdf
    • http://www.gorillawalker.com/tracking-and-sensor-data-fusion-methodological-framework-and-selected-applications.pdf
    • http://www.gorillawalker.com/camp-dick-deep-throat-2.pdf
    • http://www.gorillawalker.com/elementary-theory-of-numbers-dover-books-on-mathematics.pdf
    • http://www.gorillawalker.com/the-shame-of-the-nation-the-restoration-of-apartheid-schooling.pdf
    • http://www.gorillawalker.com/you-and-yours-american-poets-continuum-kindle-edition.pdf
    • http://www.gorillawalker.com/ceramic-art-of-the-italian-renaissance.pdf
    • http://www.gorillawalker.com/sex-and-the-american-teenager-seeing-through-the-myths-and.pdf
    • http://www.gorillawalker.com/triumph-learning-common-core-coach-english-language-arts-4.pdf
    • http://www.gorillawalker.com/new-england-traveller-s-guide.pdf
    • http://www.gorillawalker.com/radio-direction-finding-and-superresolution-ieee-electromagnetic-waves-series.pdf
    • http://www.gorillawalker.com/chocolate-for-two-kindle-edition.pdf
    • http://www.gorillawalker.com/charlotte-perkins-gilman-s-the-yellow-wall-paper-and-the.pdf
    • http://www.gorillawalker.com/oncology-lung-cancer-updates-from-asco-2011-audio-digest-foundation.pdf
    • http://www.gorillawalker.com/cad-and-desktop-publishing-guide.pdf
    • http://www.gorillawalker.com/data-ism-the-revolution-transforming-decision-making-consumer-behavior-and.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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