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 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.
• Urgency / deadline lure low SE_URGENCY_LURE
  Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
• 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://cctraff.ru/strik?keyword=ap+si+question+paper+mains In PDF document text

  • http://files.morganleephotography.org/uploads/1/3/2/6/132680986/bigokeritom-gotizomuzemiso.pdfIn PDF document text
  • http://files.chrisneohrunning.com/uploads/1/3/1/4/131438177/wawudanirusafidos.pdfIn PDF document text
  • http://files.thedojoparamus.com/uploads/1/3/1/4/131438299/7064200.pdfIn PDF document text
  • http://files.shecantoo.net/uploads/1/3/0/9/130969352/8607622.pdfIn PDF document text
  • https://site-1038750.mozfiles.com/files/1038750/xuzexofaxetaxowudamo.pdfIn PDF document text
  • https://site-1041684.mozfiles.com/files/1041684/guwubalopelor.pdfIn PDF document text
  • https://site-1036819.mozfiles.com/files/1036819/24045996215.pdfIn PDF document text
  • https://site-1037113.mozfiles.com/files/1037113/faferewirudodudivupavi.pdfIn PDF document text
  • https://site-1039638.mozfiles.com/files/1039638/77467989369.pdfIn PDF document text
  • https://site-1038913.mozfiles.com/files/1038913/dakazudejawitaxadunixab.pdfIn PDF document text
  • https://site-1038924.mozfiles.com/files/1038924/30724450084.pdfIn PDF document text
  • https://site-1040144.mozfiles.com/files/1040144/54934819898.pdfIn PDF document text
  • https://site-1039153.mozfiles.com/files/1039153/56656639880.pdfIn PDF document text
  • http://sutas.tomfieldinggolf.net/uploads/1/3/0/8/130814337/5a404f.pdfIn PDF document text
  • http://files.joehultgren.com/uploads/1/3/0/8/130814001/puzojufedarapob-zelanifuxojot.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • http://fedorahosted.org/lohitIn 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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