Malicious PDF — malware analysis report

Heuristics 5

• 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.
• External URI info PDF_URI
  PDF contains an external URL action
• 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://traffset.ru/123?keyword=five+nights+of+freddy+s+4+unblocked PDF link annotation

  • https://bewapuvin.weebly.com/uploads/1/3/1/4/131453684/koluperuziwifuwoda.pdfIn PDF document text
  • https://linowatudevenur.weebly.com/uploads/1/3/4/5/134599813/suwid.pdfIn PDF document text
  • https://pudegubazamase.weebly.com/uploads/1/3/1/1/131163945/zelepudisi-rurazumijokan-nufabupuj-jitupu.pdfIn PDF document text
  • https://ninukiwipovesot.weebly.com/uploads/1/3/0/9/130969879/kinuxafese-juvode-jotep-jarosaritevup.pdfIn PDF document text
  • https://kanolapegagidil.weebly.com/uploads/1/3/4/3/134339460/5072382.pdfIn PDF document text
  • https://zojokoladateru.weebly.com/uploads/1/3/4/4/134497877/duxovamerana.pdfIn PDF document text
  • https://talowitutujuf.weebly.com/uploads/1/3/3/9/133999148/4549031.pdfIn PDF document text
  • https://fijojonibiw.weebly.com/uploads/1/3/2/6/132681787/05404.pdfIn PDF document text
  • https://zenisitidijo.weebly.com/uploads/1/3/4/3/134309999/xalunuj.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/61c0b230-df6a-4276-b570-a69c89aae60f/little_nine_conference.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e6790795-ecd0-48f9-bed5-f767618aa2fb/mefetisefifojajilidedax.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/db2b4fb6-7079-4557-9fbf-e89405ebad39/dos2_umbral_statue.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d0b76890-2322-48ed-9f0f-827ed460860c/tozijojulupo.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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