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=web+development+quotation+template In PDF document text

  • https://site-1036775.mozfiles.com/files/1036775/72268629028.pdfIn PDF document text
  • https://site-1036734.mozfiles.com/files/1036734/21702214687.pdfIn PDF document text
  • https://site-1036722.mozfiles.com/files/1036722/defimapep.pdfIn PDF document text
  • https://site-1039809.mozfiles.com/files/1039809/dozuwenumuzugizapolerer.pdfIn PDF document text
  • http://files.willisband.org/uploads/1/3/1/4/131437655/nuviwu.pdfIn PDF document text
  • http://files.blacklicoriceweddings.com/uploads/1/3/2/7/132710671/f688397e479.pdfIn PDF document text
  • http://jufojetel.grayinghockey.com/uploads/1/3/1/3/131382486/7374859.pdfIn PDF document text
  • http://wimaruzul.carolinerosenblum.net/uploads/1/3/1/8/131857363/8896d45a9ec04e.pdfIn PDF document text
  • http://files.kissfitnessprogram.com/uploads/1/3/1/4/131455663/2e17a3a99d4.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/1af8d25d-afda-434f-84fd-47a2a96a8cf3/38775575199.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/faed03f5-4dd0-4b49-b729-4c4d0b8e57c9/49362061104.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/7106/9594/files/standard_form_of_a_line_worksheet.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0481/4068/1379/files/puterukafuxedijo.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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