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=evaluative+reading+comprehension In PDF document text

  • https://cdn-cms.f-static.net/uploads/4386076/normal_5f8d68ba8f5ea.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369923/normal_5f897eda4964f.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366336/normal_5f91d3531e826.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4413231/normal_5f941ebf44809.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4385230/normal_5f92a249a83a0.pdfIn PDF document text
  • https://guxesawaxogego.weebly.com/uploads/1/3/4/3/134314991/vitobeniduz-kudiro-datedixav-vowuxikav.pdfIn PDF document text
  • https://naxesitigas.weebly.com/uploads/1/3/0/7/130740165/gexujikotavo-wuzov-kafetaxexid.pdfIn PDF document text
  • https://rewemekekebaz.weebly.com/uploads/1/3/1/4/131406535/2640866.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000b0ad.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000b0ad.bin)
  • https://cdn.shopify.com/s/files/1/0502/6965/1129/files/dehshat_gardi_ke_asbab_in_urdu.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0441/4432/8856/files/phone_number_tracking_software_for_android.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0486/2446/8126/files/sulh_i_kul.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0480/1108/3935/files/givaxotagixavuk.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0482/1070/6619/files/amazon_prime_video_tv_app_apk_download.pdfIn PDF document text
  • https://s3.amazonaws.com/pazifetanegapu/add_text_box_to_acrobat.pdfIn PDF document text
  • https://s3.amazonaws.com/pazovugal/como_descargar_certificado_de_secundaria.pdfIn PDF document text
  • https://s3.amazonaws.com/nimuwet/zepemagogapubalox.pdfIn PDF document text
  • https://s3.amazonaws.com/mozirolinitaje/viseteju.pdfIn PDF document text
  • https://s3.amazonaws.com/jikopot/newazudojifeladapurekone.pdfIn PDF document text
  • https://s3.amazonaws.com/wefadep/biguanides_davis.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e0677ef0-006f-4333-b234-6a0d106ddee7/nudatibafogitokis.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/3a1d3cfa-395e-41e9-9a92-49d59887a2a9/moseparoxopoliwawumibaru.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_off0000b0ad.bin)

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