Malicious PDF — malware analysis report

Static analysis result for SHA-256 c2c9596298164390…

MALICIOUS

PDF

44.7 KB Created: 2018-12-14 20:38:45 +03:00 Authoring application: Sejda (Ver. 1.0.0.M6-SNAPSHOT) (via iText 2.1.7 by 1T3XT)
MD5: 04610db81e16192dc6a6e2107b810ff2 SHA-1: dac358dbb614d0e02c32853a2b7b7d93b92c9392 SHA-256: c2c9596298164390754c209dc211fd8125db7a782fac4d796a51542da7eb859c
90 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier as malicious. Static analysis revealed a large number of embedded links to external PDF files, a technique often used for SEO manipulation or to host malicious content. The document body contains numerous URLs, all pointing to the same domain, suggesting a link farm or redirection scheme. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8224

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/yoga-for-beginners-the-quick-start-guide-to-beginners-yoga.pdf
    • http://www.gorillawalker.com/transferring-the-notion-of-good-practice-when-working-with-pupils.pdf
    • http://www.gorillawalker.com/don-quijote-de-la-mancha-edici-n-de-francisco-rico.pdf
    • http://www.gorillawalker.com/skinny-sippers-low-calories-cocktails-all-150-calories-or-less.pdf
    • http://www.gorillawalker.com/logistics-engineering-handbook.pdf
    • http://www.gorillawalker.com/cooking-of-south-west-france.pdf
    • http://www.gorillawalker.com/administrative-office-management-complete-course.pdf
    • http://www.gorillawalker.com/genuine-chinese-urban-flood-control-cash-on-delivery-invoicing-010.pdf
    • http://www.gorillawalker.com/an-atlas-of-dental-and-oral-radiology.pdf
    • http://www.gorillawalker.com/rapunzel-rapunzel-bilingual-fairy-tales-level-3-leelo-tu-mismo.pdf
    • http://www.gorillawalker.com/the-pilates-bible-the-definitive-guide-to-pilates-exercises.pdf
    • http://www.gorillawalker.com/sega-mega-drive-genesis-collected-works.pdf
    • http://www.gorillawalker.com/el-sue-o-de-toda-mujer-detr-s-de-la.pdf
    • http://www.gorillawalker.com/fragments-of-a-faith-forgotten-one-of-the-best-book.pdf
    • http://www.gorillawalker.com/my-wife-used-me-as-a-baby-incubator.pdf
    • http://www.gorillawalker.com/the-callahan-cousins-2-home-sweet-home-no-2.pdf
    • http://www.gorillawalker.com/the-secrets-young-women-keep.pdf
    • http://www.gorillawalker.com/the-domain-of-reasons.pdf
    • http://www.gorillawalker.com/finish-this-book.pdf
    • http://www.gorillawalker.com/digital-art-masters-volume-2-by-3dtotal-com-published-by.pdf
    • http://www.gorillawalker.com/the-salt-lake-city-14th-ward-album-quilt-1857-stories.pdf
    • http://www.gorillawalker.com/permit-but-discourage-regulating-excessive-consumption.pdf
    • http://www.gorillawalker.com/model-tax-convention-on-income-and-on-capital-condensed-version.pdf
    • http://www.gorillawalker.com/classical-chinese-medical-texts-learning-to-read-the-classics-of.pdf
    • http://www.gorillawalker.com/tales-from-shakespeare-illustrated-by-arthur-rackham-kindle-edition.pdf
    • http://www.gorillawalker.com/a-mental-healthcare-model-for-mass-trauma-survivors-control-focused.pdf
    • http://www.gorillawalker.com/children-matter-celebrating-their-place-in-the-church-family-and.pdf
    • http://www.gorillawalker.com/michelin-gulf-coast-regional-atlas-travel-guide-michelin-regional-atlas.pdf
    • http://www.gorillawalker.com/secrets-to-barrel-racing-success-volume-1.pdf
    • http://www.gorillawalker.com/the-history-of-music-production.pdf
    • http://www.gorillawalker.com/the-last-inauguration.pdf
    • http://www.gorillawalker.com/my-sermon-notes-journal-keynotes.pdf
    • http://www.gorillawalker.com/rabbits-fun-facts-and-amazing-pictures-for-children-aged-3.pdf
    • http://www.gorillawalker.com/the-origins-of-modern-polish-democracy-polish-and-polish-american.pdf
    • http://www.gorillawalker.com/drafting-design-engineering-drawing-using-manual-cad-techniques-hardcover-2008.pdf
    • http://www.gorillawalker.com/love-drugs.pdf
    • http://www.gorillawalker.com/the-wheel-of-fire-interpretations-of-shakespearean-tragedy.pdf
    • http://www.gorillawalker.com/immigration-american-experience.pdf
    • http://www.gorillawalker.com/the-lion-hunter-the-mark-of-solomon.pdf
    • http://www.gorillawalker.com/hook-the-untold-stories-of-neverland-book-1.pdf
    • http://www.gorillawalker.com/an-atla
    • 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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