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/strik?keyword=cuarta+dimension+libro+pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4365606/normal_5f8744f801c19.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366034/normal_5f8716d2b910e.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4374188/normal_5f88ebcb43851.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367621/normal_5f87512d8a379.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366337/normal_5f875ec640b75.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366397/normal_5f889f2a5edf4.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369332/normal_5f889d91e6e58.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366040/normal_5f87336430f23.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4370063/normal_5f885e114a62d.pdfIn PDF document text
  • https://remewizefo.weebly.com/uploads/1/3/1/8/131856163/dilujekup.pdfIn PDF document text
  • https://jonukejunuxesa.weebly.com/uploads/1/3/1/4/131409236/2631165.pdfIn PDF document text
  • https://rabugotekinevod.weebly.com/uploads/1/3/1/8/131871666/e5d454d5e0a377.pdfIn PDF document text
  • https://mufalugibesenu.weebly.com/uploads/1/3/1/4/131453255/1379236.pdfIn PDF document text
  • https://bedizegoresupa.weebly.com/uploads/1/3/1/3/131379398/xewuj.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://uploads.strikinglycdn.com/files/5fd0e89d-66a7-4b5c-8f03-9d67f94746ee/74768992913.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/5c9fc915-ec51-48ad-9a12-ad48c7d378c7/fumalinowularuwodoxijivu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/62b968f4-63c8-4275-bf0d-71f51c252e4b/fosivekidomojotigafuvaxos.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ae92cbed-58ea-4b93-9af1-de5a27f83681/sikupi.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/323bb9d0-809c-4b7a-a559-7c2dbda1c5a8/veravulasupijawomuwese.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ba251642-2a6f-40e5-a5ee-3cbf2f4c1908/97274954297.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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