Malicious PDF — malware analysis report

Heuristics 7

• 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.
• Callback phishing phone lure medium SE_CALLBACK_LURE
  Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
• 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=aspects+score+pdf In PDF document text

  • http://vazoba.simonrcotton.com/uploads/1/3/1/0/131070450/90a50cdc.pdfIn PDF document text
  • http://files.peaceofmindpilates.com/uploads/1/3/1/3/131381679/e89ce1a1cbef135.pdfIn PDF document text
  • http://files.homeandschoolsts.org/uploads/1/3/1/4/131437147/mopufunefizo.pdfIn PDF document text
  • http://files.copacabana-ps.com/uploads/1/3/0/8/130874403/96bb1b23ea4f.pdfIn PDF document text
  • http://files.barrons-conferences.com/uploads/1/3/1/4/131409170/3066792.pdfIn PDF document text
  • https://site-1036944.mozfiles.com/files/1036944/33672185281.pdfIn PDF document text
  • https://site-1036716.mozfiles.com/files/1036716/38880809301.pdfIn PDF document text
  • https://site-1036719.mozfiles.com/files/1036719/muzumamepedoxifexijigaku.pdfIn PDF document text
  • https://site-1037178.mozfiles.com/files/1037178/16238958900.pdfIn PDF document text
  • https://site-1036920.mozfiles.com/files/1036920/49541773671.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://uploads.strikinglycdn.com/files/84127db8-8e0b-4e41-b0cb-5f831e6c077a/25070272963.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/3d45a054-74cc-4464-ad87-2dcaea991592/nogevagazu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d79b7dfc-3491-43ee-92ab-e25021dbccf6/tonagi.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0434/0098/6787/files/carboxypeptidase_mechanism.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0437/2666/7925/files/zagazadiwe.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0432/5523/4710/files/23878225027.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0432/8810/1030/files/guziritawamumujov.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
  • http://scripts.sil.org/OFLIn PDF document text

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