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/aws?keyword=destination+b1+pdf+download+free In PDF document text

  • https://cdn-cms.f-static.net/uploads/4387922/normal_5f9283e8d83ac.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4385634/normal_5f8d4a5aaf8ea.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366028/normal_5f90b56da375f.pdfIn PDF document text
  • https://mupibidegupek.weebly.com/uploads/1/3/0/8/130874042/1575407.pdfIn PDF document text
  • https://zupudawuliwubil.weebly.com/uploads/1/3/4/2/134265939/pitasewawetokunu.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off000055a3.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off000055a3.bin)
  • http://www.daltonmaag.com/In extracted file (font_02_sfnt_off00008b6e.bin)
  • https://uploads.strikinglycdn.com/files/3fe5bf4a-ac76-4da5-9696-d981e1f07d3f/cell_dyn_emerald_user_manual.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ed966db3-bd98-4bab-a1b6-902d493409b9/nagavuge.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/8ea29d77-bdeb-4756-8099-a14cea0ddfcb/72743643181.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0500/9562/0253/files/39267326829.pdfIn PDF document text
  • https://s3.amazonaws.com/bajuse/lisoxelizegazizevofiz.pdfIn PDF document text
  • https://s3.amazonaws.com/wovigebi/blind_willow_sleeping_woman.pdfIn PDF document text
  • https://s3.amazonaws.com/wutezigojuxi/xopotarilofukekovemazek.pdfIn PDF document text
  • https://s3.amazonaws.com/leguvefu/5077646844.pdfIn PDF document text
  • https://s3.amazonaws.com/vonuxagupeduze/kepitixo.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/c2f73dcc-dbb0-4539-9514-17c4d6b37705/monadu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1da512f4-5357-4ac4-b0c1-b39f68b6fdbf/jefevopixojarilojupuboker.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/2115b25d-ceb5-48d3-92fe-460cf5f680f2/died_in_house_free.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b81c7065-12ad-4f85-abb3-557fe0d86fa7/dinijijufebaboku.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/53100608-8cd2-4173-9929-0b4c5f0a97ba/78898264437.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_off000055a3.bin)

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