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://ggtraff.ru/strik?keyword=algebra+y+trigonometria+sullivan+9+edicion+pdf+espa%25C3%25B1ol In PDF document text

  • https://site-1036820.mozfiles.com/files/1036820/99178157740.pdfIn PDF document text
  • http://giwiwokul.experiencefirstaidandcpr.com/uploads/1/3/0/7/130739704/89118816.pdfIn PDF document text
  • http://files.mrdewildeart.com/uploads/1/3/1/6/131606490/wodefuvisad.pdfIn PDF document text
  • http://files.nortonshoresparks.org/uploads/1/3/1/4/131406947/403809.pdfIn PDF document text
  • http://files.tonypalermolifecoach.com/uploads/1/3/0/7/130740589/novujusoluliru_sirijinasizi.pdfIn PDF document text
  • http://files.anammai.com/uploads/1/3/0/8/130874403/d48ac.pdfIn PDF document text
  • http://vasazosu.agbio-inc.com/uploads/1/3/1/3/131384169/zuxitop-suzagokuxopudab-kipunifi.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off000042ac.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off000042ac.bin)
  • https://uploads.strikinglycdn.com/files/411532ed-cf89-4e2c-abe0-5529cafd9de2/tazatonakexiwaxusodomad.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/827fa7e7-961f-49ed-9bb3-cb9b8e76f37b/24191155756.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/4b7343a2-b43f-4a68-8b1a-39d53c2c6d2c/dupufowalifojopizif.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/496637e3-0f9a-4eca-8dd2-c0dee5186321/52603445608.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/10c97d30-b968-4231-b696-6321f3298b32/vebigavuxijadibamorogupa.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_off000042ac.bin)

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