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.
• PDF carries website-builder CDN document link farm medium PDF_CDN_PDF_LINK_FARM
  PDF contains many clickable PDF links parked on website-builder CDNs or simple download gateways together with visible ebook, manual, or download lure text. This matches generated SEO document carriers used to route users through untrusted link/download chains; the PDF itself is an inert link carrier.
• 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://ggtraff.ru/123?keyword=google+play+service+download+for+android+2.3.6 In PDF document text

  • https://cdn-cms.f-static.net/uploads/4379856/normal_5f8c68f548467.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366661/normal_5f872652b2a18.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4374366/normal_5f8a17279270b.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4389384/normal_5f8e0f06503c2.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365539/normal_5f875bc6588ff.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366407/normal_5f89e3411792c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4370063/normal_5f89d18731080.pdfIn PDF document text
  • https://gukepofefefika.weebly.com/uploads/1/3/1/4/131437977/sorukovenobisuteloka.pdfIn PDF document text
  • https://nunoperiv.weebly.com/uploads/1/3/1/8/131856708/5943155.pdfIn PDF document text
  • https://genigudepa.weebly.com/uploads/1/3/1/0/131070712/6023986.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4384461/normal_5f8e3ce88c42c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368245/normal_5f8e1b751318a.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00006792.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00006792.bin)
  • https://cdn.shopify.com/s/files/1/0497/1954/1921/files/swivel_sweeper_battery_life.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0483/8087/0809/files/el_libro_de_las_virtudes_william_j._bennett.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0500/0042/9206/files/prefer_would_rather.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0497/3897/3345/files/top_strategy_games_2020_android.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0439/6374/4414/files/84942063726.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0499/1886/9665/files/14284439422.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0492/3080/7196/files/12737467491.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0486/1172/1381/files/fudipugodugizudixiworum.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0437/2440/6933/files/56510136918.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 extracted file (font_00_sfnt_off00006792.bin)

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