Malicious PDF — malware analysis report

Heuristics 5

• 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://ttraff.com/123?keyword=bang+tuan+hoan+hoa+hoc+online In PDF document text

  • https://cdn-cms.f-static.net/uploads/4415331/normal_5f972601a2b97.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4390095/normal_5f906bca53d14.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4374522/normal_5f979abf82bc5.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4384851/normal_5f9901d196b17.pdfIn PDF document text
  • https://genigudepa.weebly.com/uploads/1/3/1/0/131070712/laresisif_kigadebokenub_bajutinerid.pdfIn PDF document text
  • https://babikovinemixe.weebly.com/uploads/1/3/1/8/131856339/bovetokeselivu.pdfIn PDF document text
  • https://xifobosakup.weebly.com/uploads/1/3/2/8/132815359/f3b9500db.pdfIn PDF document text
  • https://gasipepimajut.weebly.com/uploads/1/3/4/3/134367512/forofitopamole.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://cdn.shopify.com/s/files/1/0478/9177/5654/files/ikea_domsjo_sink_instructions.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0495/5255/6184/files/27807444273.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0482/0726/5944/files/characteristics_of_an_intercessor.pdfIn PDF document text
  • https://s3.amazonaws.com/xanebavifamopez/nokaxazepudavunized.pdfIn PDF document text
  • https://s3.amazonaws.com/sedimeraxufi/panugudepot.pdfIn PDF document text
  • https://s3.amazonaws.com/susopuzupure/liremisoniritanamav.pdfIn PDF document text
  • https://s3.amazonaws.com/wonoti/58476783709.pdfIn PDF document text
  • https://s3.amazonaws.com/bisegilupuf/vedic_sandhya_arya_samaj.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ffdd2b79-f179-4c71-bfbd-a3088653659c/91400011737.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e41171fb-fa75-480b-937e-1e7af08c5022/42837046757.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/7363fad4-38c8-4374-ad8d-b7f2b08f8bde/duck_on_a_bike.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/9b9b959b-302d-474e-a863-f73956c1ede2/dusakas.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/3db8d6d2-a60a-47ae-a1e7-a518b190747f/puboletazabofivokela.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/7d23b5b3-b61c-4ca1-a5ba-07fdaa6430b3/6.3_mendel_and_heredity_study_guide.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/7e8996e8-70f5-4730-891a-274ddfaaf9d3/best_ipad_to_buy.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/2e66bd0e-599c-4c27-8675-8d6b3e54cc3c/gilejopiwatune.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e8258740-0b93-4603-a2c5-98ad03d74281/sunomezifin.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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