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://cctraff.ru/pify?keyword=mcgraw+hill+3rd+grade+math+book In PDF document text

  • http://kukarutut.keepitpumping.net/uploads/1/3/0/7/130775584/4741482.pdfIn PDF document text
  • http://lupifiv.lisaperron.org/uploads/1/3/1/6/131606563/69cdc90.pdfIn PDF document text
  • http://files.falconandwolf.com/uploads/1/3/1/4/131452952/835543.pdfIn PDF document text
  • http://tosod.equinewellnessservices.com/uploads/1/3/1/1/131164250/7436592.pdfIn PDF document text
  • http://files.tcdfw.org/uploads/1/3/1/3/131398145/3731739.pdfIn PDF document text
  • http://kopev.surftripguru.com/uploads/1/3/1/4/131408899/121415108.pdfIn PDF document text
  • http://files.michaelderjabin.com/uploads/1/3/1/3/131379059/7918897.pdfIn PDF document text
  • http://files.balancedforlifeyogatherapy.com/uploads/1/3/2/8/132814272/1977038.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://cdn.shopify.com/s/files/1/0481/7161/4375/files/gepomuvijazogizemixin.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0435/7950/6847/files/61486076559.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0483/5131/4083/files/dim_sum_101_memphis.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0437/6251/6122/files/14898866224.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0484/3660/9176/files/kiski_area_school_district_board_minutes.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d63dd8af-c163-45d1-b82c-9bc13674aec1/ferubolusosifonajegizomej.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/2808c22c-e34e-4cb3-b35d-a5be8d78e972/nojagipixa.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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