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.
• Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
  Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
• 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/wix?keyword=shoulder+muscle+anatomy+chart In PDF document text

  • http://dekej.freeshawnali.com/uploads/1/3/0/8/130814761/44e275f392b0.pdfIn PDF document text
  • http://files.artsower.com/uploads/1/3/0/7/130738614/biwepurosi_ximerowil_mepijapaju.pdfIn PDF document text
  • http://fuwipive.familyreunion21.com/uploads/1/3/1/3/131384281/7fb0268e2.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/1/0433/4298/7423/files/bootstrap_templates_admin.pdfIn PDF document text
  • https://ad6eca87-5cd2-43f4-a098-05147c5d4c7a.filesusr.com/ugd/03f576_4b756f46388f4dfdbc3f37f6ac146da7.pdf?index=trueIn PDF document text
  • https://18b7ff78-eb06-4269-8d5d-7edc2405b34a.filesusr.com/ugd/1cc777_865c4a252a354832aca75639cda3f8e6.pdf?index=trueIn PDF document text
  • https://f9ad431b-d0bc-41a4-9534-df98e13e52b9.filesusr.com/ugd/501a20_a13a346c83ed4b48a8cb8a99ce0cdb27.pdf?index=trueIn PDF document text
  • https://fa009c30-23dc-4c5a-9c1a-4c3ac58f7e1a.filesusr.com/ugd/b5aed9_661aa121e8894cc0b32a9d4aa02135a5.pdf?index=trueIn PDF document text
  • https://8c0a83e6-d483-4b5f-b956-2b4738795393.filesusr.com/ugd/b50c55_6f132c08694744d98c02a22c9bdc2812.pdf?index=trueIn PDF document text
  • https://a811cfd1-1b7b-4bcb-b1e5-5a9a832687ae.filesusr.com/ugd/76b6de_2b08c4508cd945ec85be28f89c4d8501.pdf?index=trueIn PDF document text
  • https://98745e5a-c4c1-487c-8389-76cb27d7daf9.filesusr.com/ugd/f967ac_0ece58d3ed194d7b9e64651a87c626a2.pdf?index=trueIn 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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