Malicious PDF — malware analysis report

Heuristics 6

• 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 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.
• Urgency / deadline lure low SE_URGENCY_LURE
  Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
• 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=bimal+kar+books+free In PDF document text

  • http://files.fusionfuelmeals.com/uploads/1/3/0/9/130969204/rokoviririxak.pdfIn PDF document text
  • http://files.mittminders.com/uploads/1/3/2/8/132814097/2793669.pdfIn PDF document text
  • http://files.stagecoachhollow.com/uploads/1/3/1/8/131856432/megawomi_rabenegevuju.pdfIn PDF document text
  • http://fakopopum.diabeticeyejournal.org/uploads/1/3/0/7/130776167/fudumegosi.pdfIn PDF document text
  • http://files.shuyukan.ch/uploads/1/3/1/6/131637384/nirajajilejabir.pdfIn PDF document text
  • https://site-1038777.mozfiles.com/files/1038777/84988507629.pdfIn PDF document text
  • https://site-1041785.mozfiles.com/files/1041785/juruxapebiralufuta.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/25f7b992-4af8-491a-8117-b3ef290877a5/semibopanurividowolumuwip.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/4e1000cd-bad4-45a0-bb44-5030934f26d9/58537360214.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/dfa556b6-9ecf-45c0-8598-9dd3cf1fe9f2/suxukilirug.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/3a305cf2-7d00-4f02-b68b-62c550b500fc/disekimijuzelibiwomufo.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a74fa40d-9b0a-401b-987e-02f3f139a82b/60699860051.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
  • http://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
  • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text

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