Malicious PDF — malware analysis report

Static analysis result for SHA-256 7644984100ca1784…

MALICIOUS

PDF

42.7 KB Created: 2019-03-17 08:14:42 +03:00 Authoring application: LaTeX with hyperref package (via dvips + ps2pdf)
MD5: 70a1d8618b3bb78d5a749cc2b34c85d6 SHA-1: fe28cdb0c75512bcc1c113737e99a8550c675710 SHA-256: 7644984100ca17843090d25b3583a256372be037c385b70b88ba39e99f35c710
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, as indicated by the PDF_SEO_LINK_FARM heuristic. The ML_NYX_PDF_MALICIOUS classifier also flagged the document. While no scripts were extracted, the sheer volume of links suggests an attempt to manipulate search engine results or distribute potentially malicious content through these external links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8469

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/built-to-be-wild-shaped-coloring-book.pdf
    • http://www.gorillawalker.com/will-eisner-s-the-spirit-the-new-adventures-hc-second.pdf
    • http://www.gorillawalker.com/reinventing-the-melting-pot-the-new-immigrants-and-what-it.pdf
    • http://www.gorillawalker.com/geograf-a-general-y-compendio-hist-rico-del-estado-de.pdf
    • http://www.gorillawalker.com/the-revised-grail-psalms-a-liturgical-psalter-gift-edition.pdf
    • http://www.gorillawalker.com/the-slopes-of-war-a-novel-of-gettysburg.pdf
    • http://www.gorillawalker.com/complete-hydroponic-gardening-book-6-diy-garden-set-ups-for.pdf
    • http://www.gorillawalker.com/letters-from-the-closet.pdf
    • http://www.gorillawalker.com/current-therapy-of-pain.pdf
    • http://www.gorillawalker.com/star-ware-the-amateur-astronomer-s-ultimate-guide-to-choosing.pdf
    • http://www.gorillawalker.com/italy-s-most-wanted-153-the-top-10-book-of.pdf
    • http://www.gorillawalker.com/the-connecticut-river-new-england-s-historic-waterway-globe-pequot.pdf
    • http://www.gorillawalker.com/iranian-cities-formation-and-development-contemporary-issues-in-the-middle.pdf
    • http://www.gorillawalker.com/by-browntrout-yoga-kittens-2015-pocket-planner-egmt-calendar.pdf
    • http://www.gorillawalker.com/charles-simeon-of-cambridge.pdf
    • http://www.gorillawalker.com/kalvotoji-aukstaitija.pdf
    • http://www.gorillawalker.com/the-value-of-water-in-a-drying-climate-kindle-edition.pdf
    • http://www.gorillawalker.com/popular-culture-a-reader.pdf
    • http://www.gorillawalker.com/from-shield-to-storm-high-tech-weapons-military-strategy-and.pdf
    • http://www.gorillawalker.com/lucy-to-language-the-benchmark-papers.pdf
    • http://www.gorillawalker.com/kali-linux-cookbook.pdf
    • http://www.gorillawalker.com/iec-60068-2-17-ed-4-0-b-1994-basic.pdf
    • http://www.gorillawalker.com/coloring-the-universe-an-insider-s-look-at-making-spectacular.pdf
    • http://www.gorillawalker.com/aleksandr-blok-s-trilogy-of-lyric-dramas-a-puppet-show.pdf
    • http://www.gorillawalker.com/23-things-they-don-t-tell-you-about-capitalism-23.pdf
    • http://www.gorillawalker.com/ibra-nato-per-vincere-italian-edition.pdf
    • http://www.gorillawalker.com/marijuana-myths-and-facts-the-truth-behind-10-popular-misperceptions.pdf
    • http://www.gorillawalker.com/the-zero-marginal-cost-society-the-internet-of-things-the.pdf
    • http://www.gorillawalker.com/semiconductor-heterojunctions-international-series-of-monographs-in-the-science-of.pdf
    • http://www.gorillawalker.com/east-tennessee-state-university-campus-history.pdf
    • http://www.gorillawalker.com/private-eye-lashes-radio-s-lady-detectives-perfect-paperback.pdf
    • http://www.gorillawalker.com/mysteries-in-our-national-parks-deadly-waters-a-mystery-in.pdf
    • http://www.gorillawalker.com/new-headway-advanced-class-audio-cd-4-discs.pdf
    • http://www.gorillawalker.com/gender-and-disorder-in-early-modern-seville.pdf
    • http://www.gorillawalker.com/felix-gonzales-torres.pdf
    • http://www.gorillawalker.com/commentary-on-ephesians-kindle-edition.pdf
    • http://www.gorillawalker.com/the-best-guide-to-allergy.pdf
    • http://www.gorillawalker.com/modern-chinese-drama-kindle-edition.pdf
    • http://www.gorillawalker.com/rocket-propulsion-smithsonian-institution-publication-4547.pdf
    • http://www.gorillawalker.com/family-mental-health-theory-and-practice.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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