Malicious PDF — malware analysis report

Static analysis result for SHA-256 763da13155536191…

MALICIOUS

PDF

43.9 KB Created: 2018-12-14 20:38:33 +03:00 Authoring application: Adobe Illustrator CS2 (via Adobe PDF library 7.77)
MD5: 9d8b437b4efa7585c6eb387f77f66cab SHA-1: 85f055be28c0181108ffce592937f20c21cfa6d2 SHA-256: 763da1315553619124c8a532eba9e72178914fe0f445678d5219cd14c1f16b8e
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 classifier also flagged the document as malicious. While no scripts were extracted, the sheer volume of links suggests an attempt to manipulate search engine results or distribute potentially malicious content via these external links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8859

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/and-the-skipper-bats-cleanup-a-history-of-the-baseball.pdf
    • http://www.gorillawalker.com/reclaiming-our-lives-a-workbook-for-male-survivors-who-have.pdf
    • http://www.gorillawalker.com/ideology-and-cinematography-in-hollywood-1930-1939.pdf
    • http://www.gorillawalker.com/michelin-map-no-113-montpellier-montelimar-avignon-marseille-france-scale.pdf
    • http://www.gorillawalker.com/caring-for-your-wife-in-sickness-and-in-health-a.pdf
    • http://www.gorillawalker.com/reefer-movie-madness-the-ultimate-stoner-film-guide.pdf
    • http://www.gorillawalker.com/bedroom-eyes-stories-of-lesbians-in-the-boudoir.pdf
    • http://www.gorillawalker.com/mother-knows-best-spongebob-squarepants.pdf
    • http://www.gorillawalker.com/i-spy-a-butterfly.pdf
    • http://www.gorillawalker.com/attack-from-the-sky-naval-air-operations-in-the-korean.pdf
    • http://www.gorillawalker.com/justice-perverted-how-the-innocence-project-at-northwestern-university-s.pdf
    • http://www.gorillawalker.com/guilty-as-sin.pdf
    • http://www.gorillawalker.com/a-poem-for-you-baby-and-child-sweet-poems-with.pdf
    • http://www.gorillawalker.com/germany-blastoff-readers-exploring-countries-blastoff-readers-level-5.pdf
    • http://www.gorillawalker.com/kendall-hunt-chemistry-discovering-chemistry-you-need-to-know.pdf
    • http://www.gorillawalker.com/understanding-healthcare-financial-management-sixth-edition.pdf
    • http://www.gorillawalker.com/sting-guitar-chord-songbook-guitar-chord-songbooks.pdf
    • http://www.gorillawalker.com/freaky-green-eyes.pdf
    • http://www.gorillawalker.com/bibliographic-notes-on-quirigua-guatemala-classic-reprint.pdf
    • http://www.gorillawalker.com/scientific-papers-of-j-willard-gibbs-ph-d-ll-d.pdf
    • http://www.gorillawalker.com/el-tesoro-de-rackham-el-rojo-the-treasure-of-rackham.pdf
    • http://www.gorillawalker.com/the-history-of-rome-volume-1-books-1-5-unabridged.pdf
    • http://www.gorillawalker.com/top-quark-physics-at-hadron-colliders-advances-in-the-physics.pdf
    • http://www.gorillawalker.com/understanding-weatherfax-a-guide-to-forecasting-the-weather-from-radio.pdf
    • http://www.gorillawalker.com/west-palm-beach-rand-mcnally-city-maps.pdf
    • http://www.gorillawalker.com/life-cycle-nutrition-an-evidence-based-approach.pdf
    • http://www.gorillawalker.com/fluids-and-electrolytes-the-easy-guide-to-understand-fluids-and.pdf
    • http://www.gorillawalker.com/llevame-a-casa-osito-polar-spanish-edition.pdf
    • http://www.gorillawalker.com/the-kingdom-of-god.pdf
    • http://www.gorillawalker.com/powers-annals-of-the-western-shore-book-3-kindle-edition.pdf
    • http://www.gorillawalker.com/the-diary-of-a-russian-censor-aleksandr-nikitenko.pdf
    • http://www.gorillawalker.com/beyond-the-wall-of-time-book-3-the-broken-man.pdf
    • http://www.gorillawalker.com/special-places-to-stay-portugal-4th.pdf
    • http://www.gorillawalker.com/the-age-of-great-dreams-america-in-the-1960s-american.pdf
    • http://www.gorillawalker.com/pablo-art-masters-series.pdf
    • http://www.gorillawalker.com/mouse-pin-trading-summer-2012-b-w-edition-the-complete.pdf
    • http://www.gorillawalker.com/catalogue-of-the-syriac-manuscripts-in-st-mark-s-monastery.pdf
    • http://www.gorillawalker.com/thinking-fast-and-slow-kindle-edition.pdf
    • http://www.gorillawalker.com/destination-moon.pdf
    • http://www.gorillawalker.com/national-system-of-political-economy.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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