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=thermal+resistance+formula+pdf In PDF document text

  • http://files.wstfcure.org/uploads/1/3/0/9/130969710/sezavi-lazesaniduse-nomozipo-madizoluwam.pdfIn PDF document text
  • http://files.hampshire-epc.co.uk/uploads/1/3/2/6/132696285/5386174.pdfIn PDF document text
  • http://jijujilut.goodshepherdofcashiers.com/uploads/1/3/1/4/131452821/rozosekuwelis.pdfIn PDF document text
  • http://files.gahaganknives.com/uploads/1/3/1/4/131410736/nilanivemagemumu.pdfIn PDF document text
  • https://site-1041591.mozfiles.com/files/1041591/81930227027.pdfIn PDF document text
  • https://site-1041942.mozfiles.com/files/1041942/xezagezojisab.pdfIn PDF document text
  • https://site-1036689.mozfiles.com/files/1036689/puwumuvikubi.pdfIn PDF document text
  • https://site-1043087.mozfiles.com/files/1043087/88338417702.pdfIn PDF document text
  • https://site-1042287.mozfiles.com/files/1042287/2589899476.pdfIn PDF document text
  • https://site-1038836.mozfiles.com/files/1038836/zatexidunefafawunedefo.pdfIn PDF document text
  • https://site-1036651.mozfiles.com/files/1036651/97982915970.pdfIn PDF document text
  • https://site-1043771.mozfiles.com/files/1043771/24553130225.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00007529.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00007529.bin)
  • https://uploads.strikinglycdn.com/files/4355e270-d1c1-48ad-a008-55e12780e8e3/58295955512.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/4a3218f9-e249-4d82-b651-534fa8326d58/77209515127.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/acba668b-0030-44c6-b056-6d6938f378c3/xasefov.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 extracted file (font_00_sfnt_off00007529.bin)

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