Malicious PDF — malware analysis report

Heuristics 6

• 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.
• 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.
• 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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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/strik?keyword=advanced+bread+and+pastry+free+download In PDF document text

  • http://files.mayaartcenter.com/uploads/1/3/0/7/130740013/wikuduwebulimo.pdfIn PDF document text
  • http://rimotuwo.mrbrenlea.com/uploads/1/3/1/4/131407089/425692.pdfIn PDF document text
  • http://xivovum.triplecrownlacrosse.com/uploads/1/3/1/4/131453558/detax.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://cdn.shopify.com/s/files/1/0482/3295/6056/files/95535899890.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0434/6223/0181/files/graficos_en_excel_combinados.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0435/9297/4499/files/wichita_falls_times_record_news_subscription.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0441/3535/0424/files/notice_letter_to_tenant_to_move_out_example.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0437/6055/0046/files/black_ops_3_2nd_dlc.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0480/8464/8100/files/unit_4_atom_and_periodic_table_review_sheet_answers.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0431/7157/8007/files/pelivejovadotot.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/7526/3909/files/joy_luck_club_sparknotes_quiz.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
  • http://scripts.sil.org/OFLIn PDF document text

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