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/aws?keyword=depression+test+questions+pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4371269/normal_5f8ff6299540c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366008/normal_5f87226b26b46.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4393632/normal_5f92fb14f19f4.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4389581/normal_5f8f2a699f506.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365539/normal_5f8aec893c238.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369908/normal_5f88af0078e80.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4391602/normal_5f8e401e252e7.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367944/normal_5f8a5684cb439.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369185/normal_5f8ebeed8d275.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4388157/normal_5f8df45281f28.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4371783/normal_5f88bc8f1ce77.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369657/normal_5f886052b6f4d.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368763/normal_5f895239d90bb.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366633/normal_5f8e8e633dee3.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00007d0d.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00007d0d.bin)
  • http://www.daltonmaag.com/In extracted file (font_02_sfnt_off0000b3c7.bin)
  • https://uploads.strikinglycdn.com/files/8ff5f3ac-5e81-4ff9-99b8-ac0415751a41/wexefunaxomaw.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f6bdebb3-077c-4ef0-b3ec-e90a85564fca/precalculus_9th_edition_answers.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/8f6f0b62-ddc3-4a65-bae8-a96b367ae75f/19521253615.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/0c721d8e-40d0-4670-bce6-ecc175e6e3de/pobib.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0495/6150/1848/files/what_does_text_to_text_mean.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0501/5827/2691/files/android_kitkat_root_apk_download.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/2044/3045/files/average_value_and_rms_value.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/9240/1558/files/a_thru_z_insurance.pdfIn PDF document text
  • https://s3.amazonaws.com/pazifetanegapu/72597536961.pdfIn PDF document text
  • https://s3.amazonaws.com/gedimuta/ethnicity_meaning.pdfIn PDF document text
  • https://s3.amazonaws.com/xarojapi/piping_inspector_interview_questions_and_answers.pdfIn PDF document text
  • https://s3.amazonaws.com/pugomonapoxuxe/asymptotic_analysis_murray.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_off00007d0d.bin)

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