Malicious PDF — malware analysis report

Static analysis result for SHA-256 963b9d66643e2eb1…

MALICIOUS

PDF

44.9 KB Created: 2019-04-11 13:17:50 +03:00 Authoring application: doPDF Ver 7.1 Build 349 (Windows XP Professional Edition (SP 3) - Version: 5.1.2600 (x86))
MD5: 3ed9d7f896659ea5adbc55368fdd011e SHA-1: 2478878b18b4df63b6968db747b3be78a2a5020c SHA-256: 963b9d66643e2eb165bc15a7822c58aaa75e879d6ccb46bc35eab2d931109984
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded URLs pointing to external PDF files, as indicated by the PDF_SEO_LINK_FARM heuristic. This suggests a link farm or content distribution tactic. The ML classifier also flagged the PDF as malicious. No scripts were extracted, and the document body was unreadable, limiting further analysis of the specific lure.

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/battles-of-the-greek-and-roman-worlds-a-chronological-compendium.pdf
    • http://www.gorillawalker.com/ultimate-building-ideas-book-for-minecraft-amazing-building-ideas-and.pdf
    • http://www.gorillawalker.com/piacere-mentale-la-padrona-italian-edition-kindle-edition.pdf
    • http://www.gorillawalker.com/out-of-this-world-across-the-himalayas-to-forbidden-tibet.pdf
    • http://www.gorillawalker.com/power-intimacy-and-the-life-story-personological-inquiries-into-identity.pdf
    • http://www.gorillawalker.com/richard-serra-line-drawings.pdf
    • http://www.gorillawalker.com/magic-bolinda-beginner-guides-unabridged-audible-audio-edition.pdf
    • http://www.gorillawalker.com/bharat-s-credit-rating-concepts-practices-and-procedures.pdf
    • http://www.gorillawalker.com/adult-neurogenic-language-disorders-assessment-and-treatment-a-comprehensive-ethnobiological.pdf
    • http://www.gorillawalker.com/becoming-william-james.pdf
    • http://www.gorillawalker.com/golf-from-the-times-rare-book-collections.pdf
    • http://www.gorillawalker.com/little-bunny-foo-foo-the-real-story.pdf
    • http://www.gorillawalker.com/cuarto-de-guerra-estudio-b-blico-gu-a-para-el.pdf
    • http://www.gorillawalker.com/principles-of-legal-research-concise-hornbook-series.pdf
    • http://www.gorillawalker.com/paradigmas-productivos-taylorista-y-fordista-y-su-spanish-edition.pdf
    • http://www.gorillawalker.com/plumbing-engineering-design-handbook-special-plumbing-systems-volume-3-volume.pdf
    • http://www.gorillawalker.com/prolog-patient-management-in-the-office-acog-prolog-patient-management.pdf
    • http://www.gorillawalker.com/the-big-4-playbook-the-insider-s-guide-to-earning.pdf
    • http://www.gorillawalker.com/advances-in-cardiac-surgery-discontinued-advances-in-cardiac-surgery.pdf
    • http://www.gorillawalker.com/tiam-fish-river-adventure-maps.pdf
    • http://www.gorillawalker.com/topics-in-the-constructive-theory-of-countable-markov-chains.pdf
    • http://www.gorillawalker.com/meeting-the-needs-of-student-users-in-academic-libraries-reaching.pdf
    • http://www.gorillawalker.com/the-unexpected-hanging-and-other-mathematical-diversions.pdf
    • http://www.gorillawalker.com/touch-and-the-older-patient-nt-clinical-monographs.pdf
    • http://www.gorillawalker.com/lima-a-cultural-history-cityscapes.pdf
    • http://www.gorillawalker.com/steering-wheel-restoration-handbook-from-antique-to-milestone.pdf
    • http://www.gorillawalker.com/agribusiness-supply-chain-management.pdf
    • http://www.gorillawalker.com/edokko-growing-up-a-foreigner-in-wartime-japan.pdf
    • http://www.gorillawalker.com/montana-w-r-grace-faces-54-million-in-superfund-liability.pdf
    • http://www.gorillawalker.com/modern-rustic-starting-a-homestead-a-guide-to-buying-property.pdf
    • http://www.gorillawalker.com/the-mourning-notes-kindle-edition.pdf
    • http://www.gorillawalker.com/the-best-of-colored-pencil-4.pdf
    • http://www.gorillawalker.com/mental-health-issues-of-child-maltreatment.pdf
    • http://www.gorillawalker.com/the-early-maps-of-panama-up-to-1865.pdf
    • http://www.gorillawalker.com/tarsiers-nocturnal-animals.pdf
    • http://www.gorillawalker.com/adobe-illustrator-scripting-with-visual-basic-and-applescript.pdf
    • http://www.gorillawalker.com/all-aboard-fire-trucks-reading-railroad.pdf
    • http://www.gorillawalker.com/igby-goes-down-the-shooting-script.pdf
    • http://www.gorillawalker.com/the-fiddler-s-fakebook-melody-chords-kindle-edition.pdf
    • http://www.gorillawalker.com/punished-1-wrath-of-the-frost-queen-tentacle-erotica.pdf
    • http://www.gorillawalker.com/piacere-mentale-la-padrona-italian-ed
    • 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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