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.
• Travel-support phone-number stuffing scam critical 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.
• 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://ggtraff.ru/strik?keyword=tanenbaum+operating+system In PDF document text

  • https://s3.amazonaws.com/nuxulikiwab/hospital_acquired_pneumonia_treatment.pdfIn PDF document text
  • https://s3.amazonaws.com/tadovu/pisciculture_hors_sol_au_cameroun.pdfIn PDF document text
  • https://s3.amazonaws.com/juliziwojatige/kuzobadezidopux.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4387816/normal_5f947bd96736f.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4376619/normal_5f903c330b411.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366031/normal_5f871b97c1cba.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367621/normal_5f9675195e465.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4387808/normal_5f907c8c3e759.pdfIn PDF document text
  • https://s3.amazonaws.com/xanebavifamopez/usa_anthem_lyrics.pdfIn PDF document text
  • https://s3.amazonaws.com/temujonuwu/books_for_ssc_stenographer_exam.pdfIn PDF document text
  • https://s3.amazonaws.com/pazifetanegapu/81173230905.pdfIn PDF document text
  • https://s3.amazonaws.com/sugaguxagu/alternative_dispute_resolution_robeniol.pdfIn PDF document text
  • https://s3.amazonaws.com/memul/distress_tolerance_scale_dts.pdfIn PDF document text
  • https://mijisurux.weebly.com/uploads/1/3/1/0/131070147/8901043.pdfIn PDF document text
  • https://vekaluledezo.weebly.com/uploads/1/3/4/2/134235689/vefejomuxageko_nosiwave_netubovej_tirabafinu.pdfIn PDF document text
  • https://kowabimope.weebly.com/uploads/1/3/4/3/134359524/2025156.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off000071c3.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off000071c3.bin)
  • https://uploads.strikinglycdn.com/files/d6cf0367-5357-4e5d-b65e-b50eeff5537b/12069380689.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ebd3d6fb-70dc-4125-ade3-dde81f36ea5c/jotuwagujizitexired.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/81908091-5471-45ad-a77c-cafb20c31965/73627373077.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/14ccb1e4-861a-440c-8d9f-aacf68f4987e/64224378393.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0435/4654/2229/files/bokusigupafavijijudiligej.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/4672/2965/files/12599494688.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0482/2486/2365/files/zooqle_search_engine.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0497/1518/3777/files/computerised_accounting_with_tally_calicut_university.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0497/2743/9005/files/rujumuletusakokuxubibo.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_off000071c3.bin)

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