Malicious PDF — malware analysis report

Heuristics 6

• 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.
• 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/123?keyword=grades+of+finger+clubbing+pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4372955/normal_5f8da844cc966.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4370066/normal_5f8e4c0cc744d.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4402520/normal_5f9142638bef3.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4372100/normal_5f8b540511728.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off000099ab.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off000099ab.bin)
  • https://uploads.strikinglycdn.com/files/a965394f-acba-4846-b3bd-a3f695ce78c5/328928651.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/20e1f1cf-89e5-4319-8a21-a3297a50c892/56274502721.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/951770ea-78b2-420b-b102-b2f768bdecef/85231044448.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/bea8f2c3-2c06-4d5f-bf27-42bb680f1d8a/84974500346.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/7d07da97-cb61-4ec3-b3c4-014bd13d3a0e/comic_book_bible.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0479/4839/8759/files/finebu.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0482/7221/2130/files/van_horne_iowa_history.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0439/1731/2152/files/rupert_neve_rndi_manual.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0434/2536/6165/files/animal_description_worksheets.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b747f2db-f718-4ff0-b6be-dc2cc0961eb6/zukudapakovajinudut.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/17a05cde-6883-49d1-bf8f-b6a2218539bc/76951291771.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/376c0f76-88c8-439c-bd33-36945b55969d/mercury_marauder_for_sale_chicago.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/6a580c44-cb94-4292-ae3d-b308bef71777/86687832331.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/8faf5196-8778-4079-8099-eb835d092d90/supaxupukanono.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/91bd9ff3-1bd2-443e-811e-c88a83ba10db/85423333216.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a84c01d4-50c7-4458-a9dd-dd9c5a744f55/60234424886.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/cdc7d6d6-708e-4d67-bb93-6e904360910b/flag_removal_counseling.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0499/8837/0582/files/panda_free_antivirus_apk.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0434/4040/6684/files/trigonometry_calculator_pro_apk.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0499/8030/9675/files/tinerolibexigeso.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0461/7194/7161/files/chorak_online_homework.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 extracted file (font_00_sfnt_off000099ab.bin)

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