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=themen+aktuell+2+arbeitsbuch+pdf+%25D1%2581%25D0%25BA%25D0%25B0%25D1%2587%25D0%25B0%25D1%2582%25D1%258C In PDF document text

  • https://mogilifus.weebly.com/uploads/1/3/0/7/130739831/9b53ec72f.pdfIn PDF document text
  • https://porelananov.weebly.com/uploads/1/3/0/7/130775759/df0a3bffebe0.pdfIn PDF document text
  • https://liwifaxuje.weebly.com/uploads/1/3/0/8/130874244/nalefoneliz.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366646/normal_5f8b612ef32e1.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365600/normal_5f8b6a1b0bf00.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4379219/normal_5f8b74246bd53.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366010/normal_5f873c4cef43c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367951/normal_5f87b22b2487e.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4372355/normal_5f894c4f77ece.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4375358/normal_5f8982a33e79c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365661/normal_5f88a297c3823.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365549/normal_5f89a691827c4.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366340/normal_5f87df9725dac.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4382004/normal_5f8b6ef3cec92.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367674/normal_5f8a7bd3f06e7.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369150/normal_5f8a83ac431a3.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/1/0429/9502/4025/files/2558573110.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0486/9108/5462/files/54966448529.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0498/9331/0631/files/kenimanemud.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0440/7777/7061/files/welch_allyn_manual_sphygmomanometer.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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