Malicious PDF — malware analysis report

Heuristics 4

• 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 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=fundamentals+of+analytical+chemistry+pdf+download In PDF document text

  • https://site-1042607.mozfiles.com/files/1042607/dosilimewanaxunekupolor.pdfIn PDF document text
  • https://site-1037005.mozfiles.com/files/1037005/87519447873.pdfIn PDF document text
  • https://site-1036958.mozfiles.com/files/1036958/kobojumuserasa.pdfIn PDF document text
  • https://site-1036969.mozfiles.com/files/1036969/mavenoravejepogiwefi.pdfIn PDF document text
  • https://site-1044029.mozfiles.com/files/1044029/51921296476.pdfIn PDF document text
  • https://dutitujazekap.weebly.com/uploads/1/3/0/8/130814390/govorikepudago-gixidawele-wawep-xoxebilepadevu.pdfIn PDF document text
  • https://guwomenod.weebly.com/uploads/1/3/0/8/130873843/ramugimexixepaba.pdfIn PDF document text
  • https://vuxozajuje.weebly.com/uploads/1/3/1/3/131379873/1867598.pdfIn PDF document text
  • https://site-1036632.mozfiles.com/files/1036632/simosakafunotereto.pdfIn PDF document text
  • https://site-1039378.mozfiles.com/files/1039378/zekumarikuno.pdfIn PDF document text
  • https://site-1040432.mozfiles.com/files/1040432/88961419933.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/03eb88be-593e-40ad-b21c-1f0f5b061071/92485535060.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/c307b911-d940-460e-951f-5e2fd327f6e7/32264944360.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/da876055-3290-4f14-8abb-f305d408d9fc/79738861926.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/c4617e4e-7723-4e79-b6fe-eac39a22e67a/fibiropobudikozubunax.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/8555f0f0-538a-493f-87e2-58d1519f6ce2/72273631188.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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