Malicious PDF — malware analysis report

Heuristics 5

• 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.
• 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=hashtag+apk+old+version+download In PDF document text

  • https://cdn-cms.f-static.net/uploads/4366676/normal_5f8835cd404be.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367914/normal_5f87e7226ec82.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365657/normal_5f88bedc119d5.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368493/normal_5f8876fd66bd2.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368745/normal_5f88a66c8cccd.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366305/normal_5f8729bf6f4c2.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365541/normal_5f88b8df584fd.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • http://www.daltonmaag.com/In PDF document text
  • https://cdn.shopify.com/s/files/1/0496/5299/0103/files/funny_vegetarian_chili_names.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0434/9925/8022/files/car_driving_school_simulator_mod_apk.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0483/8916/1128/files/writing_tools_roy_peter_clark.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0437/8748/5342/files/antivirus_for_android_apk_download.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0435/4991/7333/files/a_dolls_house_by_henrik_ibsen.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0496/6360/6933/files/common_core_assessment_readiness_geometry_answer_key_g.co.1.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0434/7848/3097/files/ex_raids_pokemon_go_september.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0437/7516/4574/files/47756864263.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0432/5346/5243/files/chemistry_semester_2_final_study_guide_answers.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/3764/6245/files/nagisobodufupatu.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0498/6880/0155/files/37305045560.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/bcb899d5-5863-4829-be22-4d01d30981be/kazemosesafovakezefugoveg.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a68cd9bd-1abf-4e61-a173-01d1f0a784f0/wufuvubesajar.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f78245ed-fbaa-434e-a524-27c4e05e4bbd/84978521951.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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