Malicious PDF — malware analysis report

Heuristics 8

• 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.
• Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
  PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
• Travel-support phone-number stuffing scam high SE_TRAVEL_SUPPORT_PHONE_SCAM
  Document repeats phone numbers in airline/travel/refund/support language, often across multiple regional phrasings. This matches SEO/support-scam PDFs that impersonate airlines or travel brands and route users to attacker-controlled call centers rather than a normal travel document.
• 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
• PDF carries website-builder CDN document link farm medium PDF_CDN_PDF_LINK_FARM
  PDF contains many clickable PDF links parked on website-builder CDNs or simple download gateways together with visible ebook, manual, or download lure text. This matches generated SEO document carriers used to route users through untrusted link/download chains; the PDF itself is an inert link carrier.
• 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.club/123?keyword=shortcut+keys+of+computer+keyboard+pdf+download In PDF document text

  • https://folukufisika.weebly.com/uploads/1/3/1/3/131384255/dogugizuwa.pdfIn PDF document text
  • https://fuparududewon.weebly.com/uploads/1/3/1/8/131856041/6641841.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4373511/normal_5f89559a61e8a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4372383/normal_5f8dff60ed73a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366389/normal_5f87efa254189.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4370266/normal_5f8a268096935.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366044/normal_5f8afd45cdef6.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368219/normal_5f8d15f0eb704.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366655/normal_5f8de11fe97b5.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4375204/normal_5f89d7d64e027.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365998/normal_5f8701803e96b.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4380411/normal_5f8c4fc38d4f0.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_01_sfnt_off0000943d.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_01_sfnt_off0000943d.bin)
  • https://uploads.strikinglycdn.com/files/a00e7fe1-5054-46fd-b1df-f0c3d68ad3d4/xatevakejapibe.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/5c5f1595-0ed4-4cc8-8368-4d4bdcec62d2/dixobixopova.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/0478daea-7372-481c-883a-52b69fe96ada/zewodinixodu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/3a3b6152-0d0b-457e-8050-8a3c4c74699a/92488526695.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/db965fe1-9e04-40ab-8424-a131a1272ac0/95498369545.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f956e4cf-0db6-4ae8-82a0-f2dc17a8754a/sally-_gay_mccann.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/48f719ae-127f-43b3-b955-536901058e41/bopigudazixijetefizukuzo.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/3ec5ce8d-dbc9-48bf-819a-fbb4d2d38e25/xufuzupew.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/8d3c295c-a573-45c8-b3d0-83bfdd465b65/90303405221.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f29675e3-c383-4d8a-8267-ade89ef578fa/60853715271.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/2097a172-445b-4149-bc73-181c7394c59e/59758622267.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 extracted file (font_00_sfnt_off00008356.bin)
  • http://www.gnu.org/licenses/In extracted file (font_00_sfnt_off00008356.bin)
  • http://www.gnu.org/copyleft/gpl.htmlIn extracted file (font_00_sfnt_off00008356.bin)
  • http://scripts.sil.org/OFLIn extracted file (font_01_sfnt_off0000943d.bin)
  • http://dejavu.sourceforge.netIn extracted file (font_03_sfnt_off0000cbfa.bin)
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_03_sfnt_off0000cbfa.bin)

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