Malicious PDF — malware analysis report

Static analysis result for SHA-256 984df006d1c288d6…

MALICIOUS

PDF

45.4 KB Created: 2019-03-17 06:59:44 +03:00 Authoring application: - (via Acrobat Distiller 4.05 for Windows)
MD5: bcac3e79d054857c62b8fc5e95bf16ea SHA-1: d06c2d3563d32021d37e202a1e3e2794a4f4bc17 SHA-256: 984df006d1c288d6f69db0bca671f4371c62e7716370d60e9962892fa958102e
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links to external PDF files, primarily hosted on 'gorillawalker.com'. This technique is often used for SEO manipulation or to distribute malicious content indirectly. The ML classifier also flagged this PDF as malicious. No scripts were extracted, and the document body was heavily obfuscated.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8812

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-m-lodies-of-francis-poulenc-a-study-guide.pdf
    • http://www.gorillawalker.com/turkmenistan-strategies-of-power-dilemmas-of-development.pdf
    • http://www.gorillawalker.com/steck-vaughn-language-exercises-student-edition-grade-3-level-c.pdf
    • http://www.gorillawalker.com/alcman-and-the-cosmos-of-sparta.pdf
    • http://www.gorillawalker.com/enduring-justice-photographs-by-thomas-roma.pdf
    • http://www.gorillawalker.com/guardian-a-jack-sigler-continuum-novella.pdf
    • http://www.gorillawalker.com/commentaries-on-the-civil-war-illustrated.pdf
    • http://www.gorillawalker.com/care-for-the-caregiver.pdf
    • http://www.gorillawalker.com/martin-luther-king-jr-biography-for-kids-just-the-facts.pdf
    • http://www.gorillawalker.com/wheat-harvesttime-welcome-books.pdf
    • http://www.gorillawalker.com/corrupted-by-mom-s-boyfriend-corrupted-by-men-in-power.pdf
    • http://www.gorillawalker.com/biometrie-und-informatik-neue-wege-zur-erkenntnisgewinnung-in-der-medizin.pdf
    • http://www.gorillawalker.com/35-years-of-the-ironman-triathlon-world-championships.pdf
    • http://www.gorillawalker.com/historical-justice-and-memory-critical-human-rights.pdf
    • http://www.gorillawalker.com/professional-cooking.pdf
    • http://www.gorillawalker.com/earth-into-property-colonization-decolonization-and-capitalism-the-bowl-with.pdf
    • http://www.gorillawalker.com/the-jim-doty-story-accounts-of-some-of-the-marathon.pdf
    • http://www.gorillawalker.com/statistical-methods-for-quality-of-life-studies-design-measurements-and.pdf
    • http://www.gorillawalker.com/cured-slow-techniques-for-flavouring-meat-fish-and-vegetables.pdf
    • http://www.gorillawalker.com/coping-with-crisis-government-reactions-to-the-great-recession.pdf
    • http://www.gorillawalker.com/sonatina-album-piano-solo-schirmer-s-library-of-musical-classics.pdf
    • http://www.gorillawalker.com/elementary-intermediate-algebra-with-mathxl-12-month-access-3rd-edition.pdf
    • http://www.gorillawalker.com/violence-against-prisoners-of-war-in-the-first-world-war.pdf
    • http://www.gorillawalker.com/rv-camping-guide-box-set-2-in-1-50-mistakes.pdf
    • http://www.gorillawalker.com/treating-the-alcoholic-a-developmental-model-of-recovery.pdf
    • http://www.gorillawalker.com/dragon-ball-z-dragon-ball-z-sagebrush.pdf
    • http://www.gorillawalker.com/think-color-rooms-to-live-in.pdf
    • http://www.gorillawalker.com/happy-as-the-grass-was-green.pdf
    • http://www.gorillawalker.com/business-beyond-the-box-applying-your-mind-for-breakthrough-results.pdf
    • http://www.gorillawalker.com/worthy-of-the-nation-washington-dc-from-l-enfant-to.pdf
    • http://www.gorillawalker.com/wizards-presents-classes-and-races-dungeons-dragons.pdf
    • http://www.gorillawalker.com/serial-composition.pdf
    • http://www.gorillawalker.com/war-over-kosovo-politics-and-strategy-in-a-global-age.pdf
    • http://www.gorillawalker.com/the-people-finder-reuniting-relatives-finding-friends-a-practical-guide.pdf
    • http://www.gorillawalker.com/comedy-quotes-from-the-movies-over-4-000-bits-of.pdf
    • http://www.gorillawalker.com/the-servant-state-overseeing-capital-accumulation-in-canada.pdf
    • http://www.gorillawalker.com/my-boyfriend-s-an-alien.pdf
    • http://www.gorillawalker.com/gianni-schicchi-full-score-a7693.pdf
    • http://www.gorillawalker.com/fuengirola-benalmadena-costa-del-sol-spain-travel-guide-sightseeing-hotel.pdf
    • http://www.gorillawalker.com/modern-geometry.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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