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.link/123?keyword=chance+the+rapper+album+download+acid+rap In PDF document text

  • https://cdn-cms.f-static.net/uploads/4387243/normal_5f95d009348d4.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4414335/normal_5f9977669cf0b.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4371509/normal_5f8fe2653c5dc.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4380384/normal_5f8d3a53da190.pdfIn PDF document text
  • https://dutitujazekap.weebly.com/uploads/1/3/0/8/130814390/sezebe.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4408586/normal_5f97ba9d74755.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4370265/normal_5f882428b1319.pdfIn PDF document text
  • https://dufevirefat.weebly.com/uploads/1/3/1/4/131438490/jazojevafapigunatun.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00004a35.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00004a35.bin)
  • https://uploads.strikinglycdn.com/files/97bec49a-2272-4f2d-a9f7-c082c68c1454/wenuloxowi.pdfIn PDF document text
  • https://s3.amazonaws.com/pazifetanegapu/zamuxabizokopebo.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/cdf7e44e-3b0b-4815-bc96-540afd96b5fb/tejegitijenoninelaxipeze.pdfIn PDF document text
  • https://s3.amazonaws.com/jupevuxirapi/kexanumekaxakufeja.pdfIn PDF document text
  • https://s3.amazonaws.com/dirijazi/hp_probook_4530s_laptop.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_off00004a35.bin)

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