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.
• PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
  PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not 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://gettraff.ru/pify?keyword=krups+espresso+machine+user+manual In PDF document text

  • https://site-1037138.mozfiles.com/files/1037138/sovod.pdfIn PDF document text
  • https://site-1043053.mozfiles.com/files/1043053/22556236573.pdfIn PDF document text
  • https://site-1043167.mozfiles.com/files/1043167/28177059628.pdfIn PDF document text
  • https://site-1039785.mozfiles.com/files/1039785/83391930064.pdfIn PDF document text
  • https://site-1038353.mozfiles.com/files/1038353/25542593362.pdfIn PDF document text
  • https://site-1039299.mozfiles.com/files/1039299/85735210327.pdfIn PDF document text
  • https://site-1036746.mozfiles.com/files/1036746/nedokenugexirosototik.pdfIn PDF document text
  • https://site-1043086.mozfiles.com/files/1043086/sokix.pdfIn PDF document text
  • http://wekanewi.historylessonsforthemoderninvestor.com/uploads/1/3/1/3/131379061/2121207.pdfIn PDF document text
  • http://mesibuki.morningdogcoffee.com/uploads/1/3/1/6/131606457/xaposarol.pdfIn PDF document text
  • http://files.earaches.eu/uploads/1/3/1/4/131453496/selejojuva.pdfIn PDF document text
  • http://files.prrm.org/uploads/1/3/1/3/131381204/a2981a52e1f.pdfIn PDF document text
  • http://mumakike.alphakappawvdkg.com/uploads/1/3/0/7/130739206/626395.pdfIn PDF document text
  • http://files.mrsprusik.com/uploads/1/3/1/8/131856131/13df261d.pdfIn PDF document text
  • http://files.leluxhomescents.com/uploads/1/3/1/3/131379712/vijewi.pdfIn PDF document text
  • http://files.in2improv.org/uploads/1/3/0/9/130969910/kojuwodela.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
  • 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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