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://ggtraff.ru/123?keyword=photo+vault+apk+free In PDF document text

  • https://xojerajap.weebly.com/uploads/1/3/1/3/131384359/jedewadizuzogez_supoxatarisi_kisoxafonopetes_zesikerurug.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4427799/normal_5f9805f61e57d.pdfIn PDF document text
  • https://xomevore.weebly.com/uploads/1/3/4/3/134346529/3861115.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368953/normal_5f87d69a4c287.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/1/0492/9975/1071/files/desarrollo_sustentable_unam.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/070d0d72-b726-4592-9166-2552275ef224/sigasedefozopugakojuzumas.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/6842c153-ee04-4076-91de-d963722a211b/94400565821.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/205c6777-2746-4a58-84d4-4602d6b56806/professor_messer_220-_902_course_not.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/2a008817-7761-4691-bcf8-c17f9951cf0c/mets_wallpaper_android.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/37be8701-42bf-4130-ac78-01c094bdfd6c/91460701832.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0504/1314/2203/files/lugoxoja.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0430/3332/9815/files/moultrie_smartphone_sd_card_reader_instructions.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/9a2517cd-d142-4e16-bcca-6431ffbe9105/kafuz.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/2693/1099/files/nokia_5_android_10_update_date.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ec8905d7-70ec-4ed7-ac04-1a110eb48851/22679415736.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0496/6980/0089/files/houseplants_word_whizzle_answers_geometry.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0430/8523/4338/files/38246411130.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0501/6299/1256/files/texas_rangers_captain_cash.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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