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=tubes+des+ann%25C3%25A9es+2015 In PDF document text

  • http://direbaka.ysk-chb.com/uploads/1/3/1/4/131406676/tamazemowesojimidal.pdfIn PDF document text
  • http://nefixen.knox-graceec.org/uploads/1/3/2/7/132740837/figenuvad.pdfIn PDF document text
  • http://duliguz.traversehotham.com.au/uploads/1/3/2/6/132695471/202272.pdfIn PDF document text
  • http://files.seedsofhopela.org/uploads/1/3/0/8/130814588/ce04c14.pdfIn PDF document text
  • http://files.ndraymond.com/uploads/1/3/0/9/130969435/b7aa46b5eac59ab.pdfIn PDF document text
  • http://files.jornalizem.com/uploads/1/3/1/3/131384335/3af2a41f5cd09e6.pdfIn PDF document text
  • http://files.athleathan.com/uploads/1/3/0/7/130776489/jiberunexolu.pdfIn PDF document text
  • http://files.the2degrees.org/uploads/1/3/1/3/131398424/b02c4f29d8d477.pdfIn PDF document text
  • http://files.openheartschildcare.com/uploads/1/3/1/4/131407901/xujuv_xokidirab_fixevafepew.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/546ba795-f9d9-4602-89af-c985c9d241a5/36933063308.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f4124ae4-4156-4b0f-906c-3c76577a3ce3/vewulunatuvegijegujixis.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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