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.club/pify?keyword=2020+calendar+template+australia+excel

  • http://nawabitez.wa-valve.com/uploads/1/3/1/0/131069934/829214.pdf
  • http://files.abideinhiminc.org/uploads/1/3/1/4/131410952/a4021756015cde.pdf
  • http://files.robynfear.site/uploads/1/3/1/4/131452938/xejapatosogoneba.pdf
  • http://files.schoolpatio.com/uploads/1/3/2/7/132740415/6232202.pdf
  • http://files.syntheticephemera.com/uploads/1/3/2/6/132695990/kakabo.pdf
  • http://files.homeprojectmilwaukee.org/uploads/1/3/1/1/131164419/xutisarusaborot.pdf
  • http://baraga.dptrackandfield.org/uploads/1/3/1/3/131398521/9313619.pdf
  • http://files.wilkinsoncounselingatlanta.com/uploads/1/3/1/8/131856852/kupodukowut.pdf
  • http://www.ascendercorp.com/
  • http://www.ascendercorp.com/typedesigners.html
  • https://static.usrfiles.com/ugd/50de67_b65f5e596faa4d2f9e215eee66a925d4.pdf
  • https://static.usrfiles.com/ugd/f5a024_9b74c4d3a78b42cd841c58e53b93f144.pdf
  • http://www.w3.org/1999/02/22-rdf-syntax-ns#
  • http://purl.org/dc/elements/1.1/
  • http://ns.adobe.com/pdf/1.3/
  • http://ns.adobe.com/xap/1.0/
  • http://ns.adobe.com/xap/1.0/mm/
  • http://ns.adobe.com/xap/1.0/rights/
  • http://scripts.sil.org/OFL

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