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=b.+ed+result+2018+hpu+pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4369316/normal_5f8889aa85be3.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4372980/normal_5f91fd2364857.pdfIn PDF document text
  • https://mevamakokuvafas.weebly.com/uploads/1/3/4/0/134040887/1026880.pdfIn PDF document text
  • https://pasuliwipo.weebly.com/uploads/1/3/1/4/131452824/7696b1fa88.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4408709/normal_5f96056f96af8.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4410222/normal_5f936457c0ead.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00006bb6.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00006bb6.bin)
  • https://s3.amazonaws.com/pujinit/conducting_polymers_review.pdfIn PDF document text
  • https://s3.amazonaws.com/wilugugo/kajaria_tiles_price_list_2019.pdfIn PDF document text
  • https://s3.amazonaws.com/wovigebi/kexel.pdfIn PDF document text
  • https://s3.amazonaws.com/fasanag/introduo_a_epidemiologia_livro.pdfIn PDF document text
  • https://s3.amazonaws.com/susopuzupure/byzantine_art.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0488/4080/2469/files/apprendre__dessiner_pas__pas.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0488/2854/7237/files/xututikifevowumevi.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0430/7877/9047/files/que_es_nutricion_holistica.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b4e4f63b-c6eb-4c21-ab40-9eedd818ef93/39085366689.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/8ad945b4-783f-4776-aa60-b7794b8b87a9/85858475762.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/6a64e94a-06db-4993-b364-f3cda1e4ffaf/fannie_mae_borrower_certification_and_authorization_form.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/78762c76-f025-411c-b47f-5472ba975f59/balipupogizenevaz.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_off00006bb6.bin)

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