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://trafffe.ru/aws?keyword=aspx+download+file+from+url PDF link annotation

  • https://lipowuripipu.weebly.com/uploads/1/3/1/3/131378852/ff9df84a.pdfIn PDF document text
  • https://xifobosakup.weebly.com/uploads/1/3/2/8/132815359/d819ed4.pdfIn PDF document text
  • https://lokedidige.weebly.com/uploads/1/3/4/3/134315074/xoxokibi.pdfIn PDF document text
  • https://dunidapakepew.weebly.com/uploads/1/3/4/3/134319263/4930104.pdfIn PDF document text
  • https://lakujasoramaw.weebly.com/uploads/1/3/4/4/134400634/cf8b3.pdfIn PDF document text
  • https://xesaranit.weebly.com/uploads/1/3/2/6/132696194/barufi.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4377379/normal_5f93af4830c7b.pdfIn PDF document text
  • https://gikotibosad.weebly.com/uploads/1/3/4/3/134332820/0f265.pdfIn PDF document text
  • https://lefedatit.weebly.com/uploads/1/3/0/7/130776734/8190243.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4386089/normal_5fa36dd72d1c9.pdfIn PDF document text
  • https://mogijoduvide.weebly.com/uploads/1/3/0/8/130814471/wimivubufolelox.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/d421d765-f854-410d-bfd3-8be9b2404f03/nalitupodedibeju.pdfIn PDF document text
  • https://s3.amazonaws.com/vexeliku/pdf_akuntansi_keuangan_kelas_11_semester_2.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/9139bd5c-b34b-466e-8056-c70b3596e2e4/dish_40_remote_codes.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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