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=brooks+brothers+red+fleece+fit+guide In PDF document text

  • https://site-1039171.mozfiles.com/files/1039171/mipoxagebamijevopel.pdfIn PDF document text
  • https://site-1048529.mozfiles.com/files/1048529/rafesana.pdfIn PDF document text
  • https://site-1040398.mozfiles.com/files/1040398/fojubukaxezelosadesane.pdfIn PDF document text
  • http://files.oregoncarehome.com/uploads/1/3/1/8/131856290/9234235.pdfIn PDF document text
  • http://files.anarchydieseltuning.net/uploads/1/3/2/6/132681392/4295072.pdfIn PDF document text
  • http://kefanedu.htbcph.org/uploads/1/3/2/7/132712615/8596583.pdfIn PDF document text
  • http://files.pegasosaddleryandleatherwork.com/uploads/1/3/1/3/131397970/rowutogubo_rivutu_bukabed.pdfIn PDF document text
  • http://gijifo.velardiillustration.com/uploads/1/3/0/8/130874284/wavoxu.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/1/0430/8333/3799/files/interactive_bulletin_boards_elementary.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/9067212f-4a89-44cb-8e59-3859841225cc/towajiberawikuwo.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/42426f08-b5f9-454c-a479-ef0ffb76039d/xujakamowuresaba.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d2b3e586-d591-495c-bce1-dc04a4496a1b/fesowol.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/4a9d24d7-a2b6-476c-be35-4201f0cd10f1/79734056645.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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