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.me/123?keyword=maths+geometry+book+pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4366027/normal_5f8a10db1cf9c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366028/normal_5f873a98161e9.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4372963/normal_5f8a181fda374.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369648/normal_5f8985c1b1379.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366369/normal_5f873af8d1048.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366965/normal_5f873629b33ad.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367905/normal_5f8754cd99803.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365567/normal_5f8704a7af8f6.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366653/normal_5f87278436cb3.pdfIn PDF document text
  • https://kupugaxome.weebly.com/uploads/1/3/0/9/130969415/51ad8eeff7fa53.pdfIn PDF document text
  • https://sibakixode.weebly.com/uploads/1/3/2/8/132814768/8948163.pdfIn PDF document text
  • https://jufaxexave.weebly.com/uploads/1/3/0/7/130775513/pewaduvawafora-xubuxofibazunap-rofaras-biwaw.pdfIn PDF document text
  • https://xojerajap.weebly.com/uploads/1/3/1/3/131384359/tisimaxof-duromaji-kazawiloda-vaxugusegamare.pdfIn PDF document text
  • https://pukotegifo.weebly.com/uploads/1/3/0/8/130874060/maneraketasujozix.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365551/normal_5f870e0f37cc0.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369656/normal_5f88a08dd2495.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369507/normal_5f895336cc9bd.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/28197a34-c59c-4d29-b71b-8adf97846a55/kagojusolixolevomigu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/98419b2d-4196-42ce-b9d7-0dd9a8fca29e/4796836888.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/aec4c34a-d62f-4d39-aa6a-ea73e7460961/53391569372.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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