Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ae106f09d607fb5…

MALICIOUS

PDF

44.0 KB Created: 2018-12-02 20:17:58 +03:00 Authoring application: pdfTeX-1.40.14 (via Revision 5)
MD5: 93dd52d0df46521935fbecb436a60649 SHA-1: 86cee29cb0711ffbcc89d026ccbdee2ca7d5d0ac SHA-256: 1ae106f09d607fb590d4ae97f26313c998b2d9a33cd76f455ad07070c2409ae0
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, indicating a link farm or SEO poisoning attempt. The ML classifier also flagged this PDF as malicious. No scripts were extracted, and the document body was unreadable, but the heuristic firings strongly suggest a malicious intent to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8439

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/the-teaching-of-swimming.pdf
    • http://www.gorillawalker.com/the-lankavatara-sutra.pdf
    • http://www.gorillawalker.com/virology-in-agriculture.pdf
    • http://www.gorillawalker.com/biblical-inspiration.pdf
    • http://www.gorillawalker.com/spring-wildflowers-of-new-mexico.pdf
    • http://www.gorillawalker.com/california-treasures-grade-5-unit-5-teachers-edition.pdf
    • http://www.gorillawalker.com/the-dark-age-grim-great-gimmicky-post-modern-comics.pdf
    • http://www.gorillawalker.com/nfer-nelson-go-practice-verbal-reasoning-non-verbal-reasoning-mathematics.pdf
    • http://www.gorillawalker.com/hunter-s-possession.pdf
    • http://www.gorillawalker.com/nutcracker-suite-op71a-piano-solo.pdf
    • http://www.gorillawalker.com/hat-trick-hockey-romance-trilogy-extraordinaire.pdf
    • http://www.gorillawalker.com/oar-locks-for-lunch-a-pessimist-optimist-and-a-fickle.pdf
    • http://www.gorillawalker.com/the-frustrated-golfer-s-handbook-50-mental-golf-tricks-to.pdf
    • http://www.gorillawalker.com/separate-but-equal-academic-and-vocational-education-post-16-further.pdf
    • http://www.gorillawalker.com/gluten-free-with-no-apologies.pdf
    • http://www.gorillawalker.com/guerrilla-marketing-for-job-hunters-400-unconventional-tips-tricks-and.pdf
    • http://www.gorillawalker.com/room-606-the-sas-house-and-the-work-of-arne.pdf
    • http://www.gorillawalker.com/the-art-of-color-infrared-photography-paperback-common.pdf
    • http://www.gorillawalker.com/greek-fortifications-of-asia-minor-500-130-bc-from-the.pdf
    • http://www.gorillawalker.com/67-ways-to-save-the-animals.pdf
    • http://www.gorillawalker.com/a-matter-of-propriety-and-parasites-dark-matters-volume-2.pdf
    • http://www.gorillawalker.com/london-city-map.pdf
    • http://www.gorillawalker.com/the-dual-state-parapolitics-carl-schmitt-and-the-national-security.pdf
    • http://www.gorillawalker.com/guide-to-owning-a-persian-cat.pdf
    • http://www.gorillawalker.com/greater-than-emperor-cola-di-rienzo-ca-1313-54-and.pdf
    • http://www.gorillawalker.com/answering-the-objections-of-atheists-agnostics-and-skeptics.pdf
    • http://www.gorillawalker.com/aula-internacional-4-nueva-edicion-libro-del-alumno-ejercicios-cd.pdf
    • http://www.gorillawalker.com/myths-of-the-norsemen-large-print-from-the-eddas-and.pdf
    • http://www.gorillawalker.com/nutrition-interactive-cd-rom-version-2-0-macintosh-windows.pdf
    • http://www.gorillawalker.com/advanced-dermatologic-diagnosis-1e.pdf
    • http://www.gorillawalker.com/memoirs-of-the-comtesse-de-boigne-vol-ii-1816-1830.pdf
    • http://www.gorillawalker.com/project-management-tools-for-everyday-life.pdf
    • http://www.gorillawalker.com/design-guide-to-the-1997-uniform-building-code.pdf
    • http://www.gorillawalker.com/your-money-and-your-life-a-lifetime-approach-to-money.pdf
    • http://www.gorillawalker.com/everything-else-you-always-wanted-to-know-about-god-but.pdf
    • http://www.gorillawalker.com/walk4one.pdf
    • http://www.gorillawalker.com/crop-production-evolution-history-and-technology.pdf
    • http://www.gorillawalker.com/equine-anesthesia-pageburst-e-book-on-vitalsource-retail-access-card.pdf
    • http://www.gorillawalker.com/nmr-spectroscopy-basic-principles-and-applications-harcourt-brace-jovanovich-college.pdf
    • http://www.gorillawalker.com/poster-quilts-with-patrick-lose-10-festive-fusible-quilts-for.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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