Malicious PDF — malware analysis report

Static analysis result for SHA-256 867635a02483d814…

MALICIOUS

PDF

42.3 KB Created: 2018-11-14 20:02:21 +03:00 Authoring application: PageMaker 6.5 (via Acrobat Distiller 4.05 for Windows)
MD5: 6624fbde9ab774d236bb1c9602b445e9 SHA-1: a1276bdac90fae06ceb5038ec870420f1b1e9192 SHA-256: 867635a02483d814dcacdd780649921b6ed10d39f19e802bbe8b36a07d2b627f
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 classifier also flagged this document as malicious. The primary attack pattern appears to be a link farm designed to manipulate search engine results or to distribute malicious content via numerous links. No scripts were extracted from this sample.

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/capitalism-and-leisure-theory-routledge-revivals.pdf
    • http://www.gorillawalker.com/armchair-detective-1-2.pdf
    • http://www.gorillawalker.com/official-arrow-greater-boston-street-atlas-featuring-48-communities.pdf
    • http://www.gorillawalker.com/handbook-of-gendered-careers-in-management-getting-in-getting-on.pdf
    • http://www.gorillawalker.com/composition-and-the-rhetoric-of-science-engaging-the-dominant-discourse.pdf
    • http://www.gorillawalker.com/liturgical-spirituality-and-the-rite-of-christian-initiation-of-adults.pdf
    • http://www.gorillawalker.com/in-the-forest-look-once-look-again.pdf
    • http://www.gorillawalker.com/did-my-chlildren-survive-my-death-don-t-drink-and.pdf
    • http://www.gorillawalker.com/moon-wisdom-transform-your-life-using-the-moon-s-signs.pdf
    • http://www.gorillawalker.com/the-dollhouse-murders.pdf
    • http://www.gorillawalker.com/what-in-the-world-is-god-doing-the-essentials-of.pdf
    • http://www.gorillawalker.com/touchpoints-birth-to-three.pdf
    • http://www.gorillawalker.com/flexible-working-new-network-technologies.pdf
    • http://www.gorillawalker.com/wiley-cia-exam-review-conducting-the-internal-audit-engagement-volume.pdf
    • http://www.gorillawalker.com/adventures-of-riley-3-south-pole-penguins.pdf
    • http://www.gorillawalker.com/chemistry-and-technology-of-flavours-and-fragrances.pdf
    • http://www.gorillawalker.com/a-dictionary-of-english-and-romanian-equivalent-proverbs.pdf
    • http://www.gorillawalker.com/piranha-xtreme-fish.pdf
    • http://www.gorillawalker.com/cases-materials-on-private-international-law.pdf
    • http://www.gorillawalker.com/fundamentals-of-electrical-engineering.pdf
    • http://www.gorillawalker.com/heterocycles-from-transition-metal-catalysis-formation-and-functionalization-catalysis-by.pdf
    • http://www.gorillawalker.com/listening-to-god-junior-high-group-study-help-young-teens.pdf
    • http://www.gorillawalker.com/a-complete-guide-to-chi-gung.pdf
    • http://www.gorillawalker.com/the-use-and-abuse-of-history-or-how-the-past.pdf
    • http://www.gorillawalker.com/nouveau-riche-residential-real-estate-encyclopedia-r2e2-the-r2e2tm-is.pdf
    • http://www.gorillawalker.com/european-cinema-reader.pdf
    • http://www.gorillawalker.com/nicolaus-copernicus-the-earth-is-a-planet.pdf
    • http://www.gorillawalker.com/bernardo-siciliano-english-and-italian-edition.pdf
    • http://www.gorillawalker.com/doctor-strange-versus-dracula-the-montesi-formula.pdf
    • http://www.gorillawalker.com/brittany-kindle-edition.pdf
    • http://www.gorillawalker.com/pediatric-obesity-clinical-decision-support-chart-5210.pdf
    • http://www.gorillawalker.com/participant-observation.pdf
    • http://www.gorillawalker.com/how-to-solve-word-problems-grades-4-5.pdf
    • http://www.gorillawalker.com/rio-de-janeiro-pictorials-brazil-the-exotics-from-the-alpina.pdf
    • http://www.gorillawalker.com/grapes-of-wrath-the-maxnotes-literature-guides.pdf
    • http://www.gorillawalker.com/cpm-in-construction-management-eighth-edition.pdf
    • http://www.gorillawalker.com/the-scriptures-testify-about-me-jesus-and-the-gospel-in.pdf
    • http://www.gorillawalker.com/on-valor-s-side-a-marine-s-own-story-of.pdf
    • http://www.gorillawalker.com/ios-8-learn-ios-8-programming-with-swift-in-a.pdf
    • http://www.gorillawalker.com/abuso-sexual-en-la-infancia-spanish-edition.pdf
    • http://www.gorillawalker.com/liturgical-spirituality-and-the-rite-of-ch
    • 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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