Malicious PDF — malware analysis report

Heuristics 5

• 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.
• 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/123?keyword=adams+middle+school+holliston+calendar In PDF document text

  • https://dejolezeg.weebly.com/uploads/1/3/2/8/132815968/jokez.pdfIn PDF document text
  • https://lipowuripipu.weebly.com/uploads/1/3/1/3/131378852/6980710.pdfIn PDF document text
  • https://xumogimunosu.weebly.com/uploads/1/3/1/6/131607683/a73cbec3e716.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4403672/normal_5f92a63d7d988.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368493/normal_5f89f39a5ff3f.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4370317/normal_5f95fe0553991.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369648/normal_5f98a0c085cc1.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366033/normal_5f8ca41645381.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369322/normal_5f8bda365c9a5.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4403414/normal_5f964ee44a1d2.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4372681/normal_5f89b89e6afae.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4373240/normal_5f8f1fe9ec5a3.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off000061db.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off000061db.bin)
  • https://uploads.strikinglycdn.com/files/231ca5e5-8185-49ea-a1b6-bedc533bea66/57801141539.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/850a64ed-f9d5-42cd-af60-598cfdaf653d/77498210867.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/36877bc5-7076-4723-8253-912bb57d9ead/11525320821.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b67f9066-84d0-4733-b997-7a02dde45f60/8393198198.pdfIn PDF document text
  • https://s3.amazonaws.com/fasanag/pdf_to_dwg_online_convertor_free.pdfIn PDF document text
  • https://s3.amazonaws.com/sugaguxagu/61992272653.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/6b7319f8-90c5-4523-945d-0f5364b89ccb/o_primeiro_natal_cifra.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/98dd1fd4-9f9e-456d-8aac-5c3431d31287/33334553465.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_off000061db.bin)

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