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.
• Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
  Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
• Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
  Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
• 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://cctraff.ru/strik?keyword=opera+mini+browser+for+android+download In PDF document text

  • https://site-1036900.mozfiles.com/files/1036900/46929630056.pdfIn PDF document text
  • https://site-1039229.mozfiles.com/files/1039229/97534496559.pdfIn PDF document text
  • https://site-1044185.mozfiles.com/files/1044185/61863618762.pdfIn PDF document text
  • https://site-1048531.mozfiles.com/files/1048531/navek.pdfIn PDF document text
  • https://site-1037275.mozfiles.com/files/1037275/kuguzonobogupuje.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367624/normal_5f8769d6d0865.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365553/normal_5f871f8cacc3a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366952/normal_5f876764de5ac.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365635/normal_5f876bff2dd22.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/8057cbb6-f3d7-4de0-811b-09a2c140100a/90690812472.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/93eb996f-9f00-4394-9cb4-7299e7980408/6457932813.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/8c9d9b9e-8589-45b9-8a73-7e6a0d4836eb/55136168261.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ea7c6c04-d42c-4f0e-a0b6-849d454679b1/71988703743.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1e7d31d8-28a5-4a83-addb-673269ef578e/17480765990.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/5a754c70-ba8f-4978-9e46-ae6de22f0d9f/tenavugujosol.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ec0e4372-adc2-4faf-9371-26387feac67e/71568062484.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/17339a5f-4da0-4301-952b-f9216b9d2d3a/3937863936.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f0f1a84d-1d29-4777-aff5-ae64956fdf80/97360839802.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0496/4057/1029/files/exercice_theoreme_de_norton.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0499/4865/5784/files/70470944078.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0495/5484/9952/files/rezom.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0431/7026/7300/files/darogedokudavazimew.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/4b97d336-0811-4141-9f69-117e2b8ef861/xigesalufapogarigabugifi.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/63c7a74d-4136-4769-a93e-dc2fa026644c/15336242932.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b64ffcaa-88cc-4052-9e91-38e227e76f5b/47841890845.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/59cfd806-3853-434c-8bfb-48a85feda393/dororixipele.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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