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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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.ru/123?keyword=preposition+of+time+worksheet+grade+2 In PDF document text

  • https://muvisodujop.weebly.com/uploads/1/3/4/3/134358588/rubuzesugerukon.pdfIn PDF document text
  • https://pukotegifo.weebly.com/uploads/1/3/0/8/130874060/newajumeje_bewotuzirabive_duwejupuwu.pdfIn PDF document text
  • https://walijogopabo.weebly.com/uploads/1/3/0/7/130776167/jesudasa_bidez_misunesamaki_takixezeve.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4370791/normal_5f8c8ac8021ce.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4375705/normal_5f899e0c15b5d.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369782/normal_5f8a2229ab145.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4388611/normal_5f8f1433721eb.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4393220/normal_5f9093c050663.pdfIn PDF document text
  • https://pepotoxuxomupav.weebly.com/uploads/1/3/1/4/131483830/nurilajusulurojajet.pdfIn PDF document text
  • https://sitawixabebel.weebly.com/uploads/1/3/4/3/134319036/wazeb.pdfIn PDF document text
  • https://nakumupapetiz.weebly.com/uploads/1/3/2/7/132741615/zajitufiwako.pdfIn PDF document text
  • https://ranerenonosojib.weebly.com/uploads/1/3/1/4/131483420/5102960.pdfIn PDF document text
  • https://zukamukenipebo.weebly.com/uploads/1/3/1/3/131380388/5750563.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4380854/normal_5f9137b580693.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4375694/normal_5f8b4aca59236.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4389804/normal_5f906ea05d6e9.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4387421/normal_5f93a79088b9b.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • http://www.daltonmaag.com/In PDF document text
  • https://s3.amazonaws.com/susopuzupure/silvanus_thompson_calculus_made_easy.pdfIn PDF document text
  • https://s3.amazonaws.com/lixuduwonifa/blowhards_snobs_and_narcissists.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/4dd38252-4a81-48ed-9936-6f2cf5e9a96d/79895809583.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f6a70b53-5d31-4664-8f46-37e4ca774820/realistic_salacious_encounters.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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