Malicious PDF — malware analysis report

Heuristics 4

• 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 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.club/pify?keyword=too+much+coffee+meme In PDF document text

  • http://files.mss6888.com/uploads/1/3/0/8/130813769/b4acbe5.pdfIn PDF document text
  • http://files.nfcfleonardville.com/uploads/1/3/2/6/132681970/11511580.pdfIn PDF document text
  • http://files.thetidewaterschool.org/uploads/1/3/2/6/132681834/gupepotudiner.pdfIn PDF document text
  • https://site-1040299.mozfiles.com/files/1040299/50935587072.pdfIn PDF document text
  • https://site-1039933.mozfiles.com/files/1039933/97668472950.pdfIn PDF document text
  • https://site-1036880.mozfiles.com/files/1036880/xokusekexufegunijifikera.pdfIn PDF document text
  • https://site-1037124.mozfiles.com/files/1037124/47472834579.pdfIn PDF document text
  • https://site-1043081.mozfiles.com/files/1043081/22917958075.pdfIn PDF document text
  • https://site-1039161.mozfiles.com/files/1039161/rozokejivezewolafu.pdfIn PDF document text
  • https://site-1036745.mozfiles.com/files/1036745/86582342826.pdfIn PDF document text
  • http://rizaget.darkkentphotography.com/uploads/1/3/1/3/131380005/dubuk.pdfIn PDF document text
  • http://files.fizjomed-swarzedz.pl/uploads/1/3/1/3/131398222/tivuseforazat_xonizugevidelu_sapilo_nisegibujavosor.pdfIn PDF document text
  • http://wipemila.capefearorchid.org/uploads/1/3/1/6/131606349/5d0a7428.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn 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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