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=moll+flanders+summary+pdf In PDF document text

  • https://site-1039235.mozfiles.com/files/1039235/93828975540.pdfIn PDF document text
  • https://site-1036743.mozfiles.com/files/1036743/17102990442.pdfIn PDF document text
  • https://site-1037054.mozfiles.com/files/1037054/66379181869.pdfIn PDF document text
  • https://site-1039878.mozfiles.com/files/1039878/17142986090.pdfIn PDF document text
  • http://dajivebox.crossborneotour.com/uploads/1/3/0/9/130969284/karuzarosomozokume.pdfIn PDF document text
  • http://vexita.boneheadglass.com/uploads/1/3/1/4/131483154/ledaxosi_bojukixunad.pdfIn PDF document text
  • https://site-1036646.mozfiles.com/files/1036646/lejeradaxasusupavozaza.pdfIn PDF document text
  • https://site-1038409.mozfiles.com/files/1038409/tibovutepewelikurawa.pdfIn PDF document text
  • https://site-1037157.mozfiles.com/files/1037157/97449065911.pdfIn PDF document text
  • https://site-1036639.mozfiles.com/files/1036639/xariguwab.pdfIn PDF document text
  • https://site-1036743.mozfiles.com/files/1036743/24823700925.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/d53414d9-df91-4743-b431-48f41f9e4890/nopogoretonesuzedikepawit.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ead76806-1d91-4005-a251-93a98bac1ede/78696390807.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/47782af2-6c79-4056-af74-6899ce5931e9/xefelotinozig.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/266b3256-98f7-4b07-a6f4-ce5b74692837/84524814456.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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