Malicious PDF — malware analysis report

Static analysis result for SHA-256 315e795a76c14858…

MALICIOUS

PDF

43.7 KB Created: 2019-04-07 18:03:34 +03:00 Authoring application: LaTeX with hyperref package (via pdfTeX-1.40.14)
MD5: c6b176ca9d426aa7fb3b5b19d8e72c28 SHA-1: 2e3d94a6d67f1426e272b08172509dc91dc5c07c SHA-256: 315e795a76c148589a76cba0cd4ffea21b90c73174cff973e37cbba423bd5f1b
90 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded URLs pointing to various PDF documents on the same domain, as indicated by the PDF_SEO_LINK_FARM heuristic. This suggests a link farm or SEO manipulation tactic. The ML classifier also flagged the PDF as malicious. No scripts were extracted from this sample. The primary attack pattern involves directing users to external links, potentially for malicious redirection or content delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9171

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/200-easy-cakes-bakes-hamlyn-all-color-cookbook.pdf
    • http://www.gorillawalker.com/birth-control-a-medical-dictionary-bibliography-and-annotated-research-guide.pdf
    • http://www.gorillawalker.com/holocaust-resistance-understanding-the-holocaust.pdf
    • http://www.gorillawalker.com/old-new-york-in-early-photographs-1853-1901-196-prints.pdf
    • http://www.gorillawalker.com/troia-mexican-memoirs-american-literature-series.pdf
    • http://www.gorillawalker.com/glas-16-childhood-glass-innactive-series.pdf
    • http://www.gorillawalker.com/help-me-be-good-about-tattling.pdf
    • http://www.gorillawalker.com/frog-and-the-stranger-english-turkish-frog-series.pdf
    • http://www.gorillawalker.com/woman-of-clay-an-outrageous-gospel-story-unveiled-kindle-edition.pdf
    • http://www.gorillawalker.com/name-your-puppy-the-cutest-puppy-names-kindle-edition.pdf
    • http://www.gorillawalker.com/play-the-queen-s-indian-everyman-chess.pdf
    • http://www.gorillawalker.com/study-guide-for-on-cooking-update.pdf
    • http://www.gorillawalker.com/russian-roulette-the-story-of-an-assassin-alex-rider.pdf
    • http://www.gorillawalker.com/cree-legends-and-narratives-from-the-west-coast-of-james.pdf
    • http://www.gorillawalker.com/ecological-intelligence-how-knowing-the-hidden-impacts-of-what-we.pdf
    • http://www.gorillawalker.com/helen-s-big-world-the-life-of-helen-keller-big.pdf
    • http://www.gorillawalker.com/the-avenging-of-the-apostles-and-prophets-commentary-on-revelation.pdf
    • http://www.gorillawalker.com/regulating-media-the-licensing-and-supervision-of-broadcasting-in-six.pdf
    • http://www.gorillawalker.com/al-anon-narratives-women-self-stories-and-mutual-aid.pdf
    • http://www.gorillawalker.com/babymouse-7-skater-girl.pdf
    • http://www.gorillawalker.com/the-complete-guide-to-bed-breakfasts-inns-guesthouses-western-edition.pdf
    • http://www.gorillawalker.com/nucleic-acid-analysis-principles-and-bioapplications.pdf
    • http://www.gorillawalker.com/futanari-demigoddess-5-divine-intervention-kindle-edition.pdf
    • http://www.gorillawalker.com/rise-of-terrorism-and-secessionism-in-eurasia.pdf
    • http://www.gorillawalker.com/treasury-of-historic-folk-ornament-in-full-color-dover-pictorial.pdf
    • http://www.gorillawalker.com/puzzles-of-the-democratic-peace-theory-geopolitics-and-the-transformation.pdf
    • http://www.gorillawalker.com/the-art-of-time-the-art-of-place-isaac-bashevis.pdf
    • http://www.gorillawalker.com/pregnancy-what-you-need-to-know-when-you-re-expecting.pdf
    • http://www.gorillawalker.com/swiss-railways-locomotives-railcars-trams-european-handbook-no-5.pdf
    • http://www.gorillawalker.com/impact-of-various-components-on-semi-spreading-kharif-groundnut-groundnut.pdf
    • http://www.gorillawalker.com/la-gallinita-roja-little-red-hen-spanish-edition.pdf
    • http://www.gorillawalker.com/philosophy-of-chemistry-synthesis-of-a-new-discipline-boston-studies.pdf
    • http://www.gorillawalker.com/hegel-classic-reprint.pdf
    • http://www.gorillawalker.com/pinkalicious-thanksgiving-helper.pdf
    • http://www.gorillawalker.com/king-norodom-146-s-head-phnom-penh-sights-beyond-the.pdf
    • http://www.gorillawalker.com/meet-prince-logan-alpha-wolf-royalty-an-mm-gay-alpha.pdf
    • http://www.gorillawalker.com/gifted-hands-20th-anniversary-edition-the-ben-carson-story.pdf
    • http://www.gorillawalker.com/diagnostic-dysmorphology.pdf
    • http://www.gorillawalker.com/judicial-advocates-and-procurators-1941-cua-studies-in-canon-law.pdf
    • http://www.gorillawalker.com/intermediate-algebra-with-applications-and-visualizations-custom-for-pcc.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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