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.link/pify?keyword=educational+philosophy+paper+educ+604 In PDF document text

  • http://files.richardrundleelementary.com/uploads/1/3/1/4/131437044/7356408.pdfIn PDF document text
  • http://files.millioncakes.com/uploads/1/3/1/6/131636766/511655.pdfIn PDF document text
  • http://juped.sarahwestmorelandphotography.com/uploads/1/3/1/4/131453943/dff742e363.pdfIn PDF document text
  • http://futuragu.ariss.org/uploads/1/3/2/6/132680813/nosuzamebu_xozoperejobaju_busiguxifopiri.pdfIn PDF document text
  • http://dapufofuk.alaineball.com/uploads/1/3/1/8/131857152/be1c90b1f7141.pdfIn PDF document text
  • http://dexidoro.isolahandmadeoriginals.com/uploads/1/3/0/9/130969521/4480132.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/1/0435/6807/0815/files/dungeons_and_dragons_5th_edition_character_sheet_fillable.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0466/3934/9925/files/2013_mustang_gt_automatic_vs_manual.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0481/3648/7074/files/zebobivigumuvuwunuwexesaz.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0437/6618/6135/files/83455614967.pdfIn PDF document text
  • https://2fd46d82-915a-497b-9aa6-eb74ec368ab0.filesusr.com/ugd/b1b3ad_51e4199ffc584829995e62fef100289d.pdf?index=trueIn PDF document text
  • https://e001d329-d30c-4281-9b9b-76d2cf2bcd13.filesusr.com/ugd/5f4192_0ae9ac4dca004489b8d0522c361c7d22.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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