Malicious PDF — malware analysis report

Heuristics 4

• PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
  PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
• Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
  PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
• Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
  The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
• 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 https://cctraff.ru/aws?keyword=doodle+buddy+application In PDF document text

  • https://s3.amazonaws.com/firigugixujotov/endometritis_puerperal_2016.pdfIn PDF document text
  • https://numibogag.weebly.com/uploads/1/3/4/3/134323011/zetugarilotura_gupajikagikudo_pinuma_sasuv.pdfIn PDF document text
  • https://s3.amazonaws.com/napejaxosinages/poforinakaxobu.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4370530/normal_5f8a920ae3e18.pdfIn PDF document text
  • https://s3.amazonaws.com/memul/powobonoxix.pdfIn PDF document text
  • https://s3.amazonaws.com/henghuili-files/high_carbon_steel_grades.pdfIn PDF document text
  • https://s3.amazonaws.com/kagedatabujo/dujuloperuwafizifodoxu.pdfIn PDF document text
  • https://s3.amazonaws.com/donake/rufukixokapisaxamogum.pdfIn PDF document text
  • https://s3.amazonaws.com/felasorarabipis/features_of_parliamentary_system.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_01_sfnt_off000067d9.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_01_sfnt_off000067d9.bin)
  • http://www.daltonmaag.com/In extracted file (font_05_sfnt_off0000bfa7.bin)
  • https://uploads.strikinglycdn.com/files/228f0905-dec8-4909-ab44-94e8e8a368e5/72962439051.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/fb5f814d-f1da-445d-9b79-3e0603d5e9f3/ximajunivurulazumotef.pdfIn PDF document text
  • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
  • http://purl.org/dc/elements/1.1/In PDF document text
  • http://ns.adobe.com/pdf/1.3/In PDF document text
  • http://ns.adobe.com/xap/1.0/In PDF document text
  • http://ns.adobe.com/xap/1.0/mm/In PDF document text
  • http://ns.adobe.com/xap/1.0/rights/In PDF document text
  • https://savannah.gnu.org/projects/freefont/In extracted file (font_00_sfnt_off0000575f.bin)
  • http://www.gnu.org/licenses/In extracted file (font_00_sfnt_off0000575f.bin)
  • http://www.gnu.org/copyleft/gpl.htmlIn extracted file (font_00_sfnt_off0000575f.bin)
  • http://scripts.sil.org/OFLIn extracted file (font_01_sfnt_off000067d9.bin)
  • http://dejavu.sourceforge.netIn extracted file (font_04_sfnt_off0000aa1d.bin)
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_04_sfnt_off0000aa1d.bin)

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