Malicious PDF — malware analysis report

Heuristics 6

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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.
• 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://yafferge.ru/strik?utm_term=math+worksheets+for+kindergarten+pdf+free In PDF document text

  • https://lufuroxula.weebly.com/uploads/1/3/1/4/131408913/1e1ba76708649.pdfIn PDF document text
  • https://mokugutareno.weebly.com/uploads/1/3/1/6/131606089/rojejalamov.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4413701/normal_5fe3b1ff51201.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4446781/normal_601f616be7ea9.pdfIn PDF document text
  • http://aov.one/xikevirinovasixh2v90.pdfIn PDF document text
  • https://wabezapodila.weebly.com/uploads/1/3/1/4/131437306/4735831.pdfIn PDF document text
  • https://ruvavebi.weebly.com/uploads/1/3/5/4/135401399/xofanaz_derivogi.pdfIn PDF document text
  • https://sojujigun.weebly.com/uploads/1/3/0/9/130969910/1168857.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4450337/normal_5ff1048cd7d55.pdfIn PDF document text
  • http://aicberg.net/gefelepipemupfes8q.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4491673/normal_6037f13d2d23a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369153/normal_5fd3462f5e6c8.pdfIn PDF document text
  • http://ledimpress.biz/789653907695u197.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4374715/normal_5fef3bb4afd48.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://80820154-e864-4b0c-832b-212b24169927.filesusr.com/ugd/c12414_8814766b361240df876c652685b8084f.pdf?index=trueIn PDF document text
  • https://19508648-7f28-415f-8121-b57715dc1465.filesusr.com/ugd/9734e7_d2231914986e448890835d7b3460a37d.pdf?index=trueIn PDF document text
  • https://uploads.strikinglycdn.com/files/74bd2992-971d-4090-9c67-c1218343f032/best_quran_tafseer_in_english_app.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/0f2a416f-74a8-4625-859a-6beb81e0e844/speech_therapy_exercises_for_expressive_aphasia.pdfIn PDF document text
  • https://22e365c6-0853-42e1-82f8-83473bf9c0bf.filesusr.com/ugd/217d68_bf0ed072174048c0bbabe2e6a1115ba5.pdf?index=trueIn PDF document text
  • https://uploads.strikinglycdn.com/files/b600091f-56b2-4d28-ba88-5fee2ae6b6c0/is_it_legal_to_sell_food_from_home_in_california.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/eef62dae-1334-4c15-b70f-98993e3f31fc/91483043853.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/336f30df-b678-4ef3-837b-5ac261aaf2a5/2019_international_finance_corporation_grant_program.pdfIn PDF document text
  • https://75a697d3-84f0-44cf-bab9-f05e37020c50.filesusr.com/ugd/7c3584_f827e7e6b0bd4a30a4a76f1493ef517a.pdf?index=trueIn PDF document text
  • https://caf0f927-206f-4b4e-aa34-0dd3da53679b.filesusr.com/ugd/83d902_2c621b586f504e24aec4d0d60e228de4.pdf?index=trueIn 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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