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.ru/wb?keyword=urdu%20idioms%20with%20urdu%20meanings%20and%20sentences%20pdf In PDF document text

  • http://zugogi.kashmirconnected.com/uploads/1/3/1/0/131070340/7015977.pdfIn PDF document text
  • http://files.productionriggingdepartment.com/uploads/1/3/0/9/130969148/2837425.pdfIn PDF document text
  • http://files.narnargoonfc.com/uploads/1/3/1/4/131452778/4ce693.pdfIn PDF document text
  • http://files.fbcpottstown.org/uploads/1/3/0/9/130969907/wavazawuwox_dufugopo_bafodudip_kawafavuwal.pdfIn PDF document text
  • http://files.reikifortheplanet.com/uploads/1/3/2/3/132302815/5645773.pdfIn PDF document text
  • http://files.kylavender.com/uploads/1/3/2/7/132710676/1558531.pdfIn PDF document text
  • http://files.theperfectrockingchair.com/uploads/1/3/2/7/132740692/zogexekojamunapu.pdfIn PDF document text
  • http://files.vega-2.com/uploads/1/3/1/8/131871690/givasenodezifoduna.pdfIn PDF document text
  • http://wemubofav.courageousgirls.com/uploads/1/3/0/7/130739826/4704727.pdfIn PDF document text
  • http://lapome.starlitedance.ca/uploads/1/3/2/7/132710507/tojagiwelobu.pdfIn PDF document text
  • http://files.neusgilcortes.com/uploads/1/3/2/6/132696465/1411891.pdfIn PDF document text
  • http://xuvopifa.thehockeyprofessor.org/uploads/1/3/0/8/130874426/lijulamuzo_dakow.pdfIn PDF document text
  • http://paporuw.exoticedventures.com/uploads/1/3/1/4/131406453/4974283.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/1/0433/9440/0414/files/makalah_arbitrase.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0461/4186/6137/files/39102022996.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0430/0960/5791/files/comparing_and_ordering_fractions_wor.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0461/1692/9700/files/63892424322.pdfIn 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
  • https://savannah.gnu.org/projects/freefont/In PDF document text
  • http://www.gnu.org/licenses/In PDF document text
  • http://www.gnu.org/copyleft/gpl.htmlIn PDF document text
  • http://scripts.sil.org/OFLIn PDF document text
  • http://www.gnu.org/licenses/lgpl.htmlRegularDanhHongIn PDF document text
  • http://www.geocities.com/dnhhngIn PDF document text

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