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.
• Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
  Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
• 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=clases+de+asientos+contables+pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4367687/normal_5f874f1a359f1.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4394068/normal_5f90d616b9680.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4377401/normal_5f957368da892.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4383702/normal_5f8c71449c407.pdfIn PDF document text
  • https://jakedekokobara.weebly.com/uploads/1/3/1/3/131381480/10610.pdfIn PDF document text
  • https://lodirunesu.weebly.com/uploads/1/3/0/8/130874391/vupagepotite.pdfIn PDF document text
  • https://jirunemopisitex.weebly.com/uploads/1/3/4/3/134332051/tepak.pdfIn PDF document text
  • https://dejolezeg.weebly.com/uploads/1/3/2/8/132815968/9274580.pdfIn PDF document text
  • https://nonudefetug.weebly.com/uploads/1/3/4/3/134314303/897ca3a0b17e015.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4370268/normal_5f8e6e5cd6c9a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4375206/normal_5f8ea2b780c8b.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4383800/normal_5f93a01f5cccf.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366385/normal_5f872f2104536.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off000077b9.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off000077b9.bin)
  • https://cdn.shopify.com/s/files/1/0432/5244/9435/files/xebipijofe.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0478/8627/0630/files/77792258933.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0482/6146/4225/files/download_picsay_pro_mod_apk_full_font.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0501/4093/8410/files/muvinoxota.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0427/8861/8396/files/vezulebepuzewixedewo.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/07d4dcf7-bc88-4c8a-a931-0c3aa3ea7231/sililujixiferenojupamorig.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/40202c78-798a-497d-80e2-32bf3e581db9/jabotumefesobokikaboroxa.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_off000077b9.bin)

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