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://cctraff.ru/strik?keyword=tuesdays+with+morrie+full+book+download In PDF document text

  • http://files.bosschart.com/uploads/1/3/1/6/131636766/7935080.pdfIn PDF document text
  • http://files.nightfallfarm.com/uploads/1/3/1/4/131408664/lajotanare.pdfIn PDF document text
  • http://files.leviclay.com/uploads/1/3/1/4/131437503/64cead4f7e397.pdfIn PDF document text
  • http://files.shop1021.com/uploads/1/3/0/9/130969946/5b5b0896cf.pdfIn PDF document text
  • http://wiligi.alleghanypregnancycarecenter.org/uploads/1/3/0/8/130814173/2383987.pdfIn PDF document text
  • http://files.comtecwash.com/uploads/1/3/0/7/130739658/taputa-tugikituwatoja.pdfIn PDF document text
  • http://files.90sinmypocket.com/uploads/1/3/0/7/130775032/maxoxinonomujegobes.pdfIn PDF document text
  • http://files.bayareaartsaccess.org/uploads/1/3/1/3/131383661/547bb7a9b7db0.pdfIn PDF document text
  • http://tuzug.worksforwomen.org/uploads/1/3/1/0/131070374/437831.pdfIn PDF document text
  • http://files.hospismelaka.org/uploads/1/3/0/7/130775280/449dfeb57c7cf8.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/1/0428/6083/9079/files/bosebojepaf.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0481/2737/7561/files/91434056781.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0430/6108/4322/files/nezirof.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0431/9661/2768/files/cuny_direct_admissions.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a2095f1e-7b77-40ef-bbf6-2c034b76e716/2732827622.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e77ad93a-fe8c-4f70-a1b3-b5c8e6038614/39651775194.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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