Malicious PDF — malware analysis report

Heuristics 4

• 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.
• 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.
• 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=acls+pre+assessment+2018 In PDF document text

  • https://cdn-cms.f-static.net/uploads/4405953/normal_5f9d30aad94b2.pdfIn PDF document text
  • https://moxitasa.weebly.com/uploads/1/3/1/4/131454719/wuxiz.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4382201/normal_5f9c114e6bc66.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369656/normal_5f928a2a4049a.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/2fc41f1e-221c-4012-a95e-e6b05ace662b/team_ninja_video_games.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/84135b60-4577-4393-9f9c-259aa990a493/20924968783.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0266/7744/4800/files/15670069786.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0498/5208/8477/files/zepovid.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0440/8262/6710/files/android_restore_apps_from_another_device.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/721e383d-8499-4fa2-85f6-02b7dfb75c29/antigone_textual_evidence.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/bf0182da-42a1-4806-b07f-21b519a236ae/fupagizegugowu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/54fef813-2457-41a1-9418-8cca3b79b65a/maglite_led_conversion_kit_aa.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0431/8140/8416/files/company_logo_printed_napkins.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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