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/aws?keyword=cause+and+effect+chart+pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4379355/normal_5f93ca8ce41b0.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4388839/normal_5f8eb34a66754.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4379968/normal_5f93fff7577d8.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4393625/normal_5f914c2d9e8d2.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366407/normal_5f8b9b544cf81.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369796/normal_5f89e8cd1abb1.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366014/normal_5f87e5bfd031c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4409095/normal_5f94dd5209c7a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368768/normal_5f8b7de715746.pdfIn PDF document text
  • https://towetebofipu.weebly.com/uploads/1/3/1/4/131437669/4d7517.pdfIn PDF document text
  • https://kubupukadumu.weebly.com/uploads/1/3/1/3/131382740/zavopuro.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000611b.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000611b.bin)
  • https://s3.amazonaws.com/felasorarabipis/best_paper_airplane_instructions.pdfIn PDF document text
  • https://s3.amazonaws.com/bubisifapagefe/sap_bpc_10._1_embedded.pdfIn PDF document text
  • https://s3.amazonaws.com/tuzamada/accounting_and_finance_for_non-_specialists.pdfIn PDF document text
  • https://s3.amazonaws.com/wibedubosateg/23685788397.pdfIn PDF document text
  • https://s3.amazonaws.com/henghuili-files2/material_safety_data_sheet_in_hindi.pdfIn PDF document text
  • https://s3.amazonaws.com/henghuili-files2/27571741255.pdfIn PDF document text
  • https://s3.amazonaws.com/vatakefojunib/18751405695.pdfIn PDF document text
  • https://s3.amazonaws.com/kavitokolezub/jitepoxebegogavosisiziji.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/61ff3023-71e4-427b-9292-8d30622f3a49/sekojarimovuz.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/74ca54ea-9bea-4012-8f17-896abf739790/karir.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_off0000611b.bin)

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