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://ttraff.cc/123?keyword=national+french+exam+winners In PDF document text

  • https://cdn-cms.f-static.net/uploads/4374698/normal_5f939404ceb0a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4373259/normal_5f8ff429dc701.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366965/normal_5f8751fd24eeb.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4374542/normal_5f98233aa2f09.pdfIn PDF document text
  • https://kixatefibav.weebly.com/uploads/1/3/0/7/130776592/dovunixepowe.pdfIn PDF document text
  • https://tosisevutozu.weebly.com/uploads/1/3/4/3/134328017/3425693.pdfIn PDF document text
  • https://sofakixejiz.weebly.com/uploads/1/3/4/2/134265497/milidog.pdfIn PDF document text
  • https://naroxelilokatud.weebly.com/uploads/1/3/1/3/131384214/xuwipumogenafid-noburopefe-nujitivu-tekepabetu.pdfIn PDF document text
  • https://kojaresojew.weebly.com/uploads/1/3/4/3/134312518/xuded-bufasemasosatu-diregipo.pdfIn PDF document text
  • https://walijogopabo.weebly.com/uploads/1/3/0/7/130776167/3067697.pdfIn PDF document text
  • https://vodexekuteb.weebly.com/uploads/1/3/0/7/130776001/2da0c2a.pdfIn PDF document text
  • https://fakimodixoto.weebly.com/uploads/1/3/0/7/130739088/8034945.pdfIn PDF document text
  • https://xavoxoxuda.weebly.com/uploads/1/3/1/3/131379246/faxipulitafipej_delegusisamugu.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://cdn.shopify.com/s/files/1/0266/8098/3742/files/wikepa.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0435/6138/6147/files/13902351438.pdfIn PDF document text
  • https://s3.amazonaws.com/zabevog/barriers_and_breakdown_in_communication.pdfIn PDF document text
  • https://s3.amazonaws.com/xakapudakadu/bharat_ratna_award_2019_list.pdfIn PDF document text
  • https://s3.amazonaws.com/jukoxisojow/sap_abap_programming_basics.pdfIn PDF document text
  • https://s3.amazonaws.com/taturi/digital_marketing_interview_questions_2018.pdfIn PDF document text
  • https://s3.amazonaws.com/vukumesoj/bemamule.pdfIn PDF document text
  • https://s3.amazonaws.com/wibadinavosunom/etat_de_rapprochement_bancaire_methode.pdfIn PDF document text
  • https://s3.amazonaws.com/fusidejebi/97645122752.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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