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://ttraff.cc/123?keyword=bastien+piano+basics+level+1+pdf+free+download In PDF document text

  • https://cdn-cms.f-static.net/uploads/4383915/normal_5f97767fdf264.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4427795/normal_5f9c409f4e408.pdfIn PDF document text
  • https://naxedomabaxa.weebly.com/uploads/1/3/1/6/131606472/1444009.pdfIn PDF document text
  • https://rajerese.weebly.com/uploads/1/3/4/3/134387708/2fab61daad7e09.pdfIn PDF document text
  • https://gixapogaruxa.weebly.com/uploads/1/3/4/3/134331356/lodenafa-zufefumafo-gufetuxopa.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366309/normal_5f879fc8d4f2d.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4376601/normal_5f945ddd204df.pdfIn PDF document text
  • https://zitidatuviwe.weebly.com/uploads/1/3/4/4/134493200/a7ed9.pdfIn PDF document text
  • https://kufesolujuxubi.weebly.com/uploads/1/3/4/3/134373324/5158884.pdfIn PDF document text
  • https://serinuvof.weebly.com/uploads/1/3/3/9/133997237/ee970.pdfIn PDF document text
  • https://kurikezexiwu.weebly.com/uploads/1/3/0/7/130775092/lonoravix.pdfIn PDF document text
  • https://gexumuvebevo.weebly.com/uploads/1/3/4/3/134312536/1113496.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000533f.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000533f.bin)
  • https://s3.amazonaws.com/wanasuvedigo/blank_puzzle_template_12_pieces.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_off0000533f.bin)

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