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/strik?keyword=sistemas+de+estructuras+heino+engel+pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4369626/normal_5f8a31d10f43b.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365567/normal_5f8775139c326.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366321/normal_5f8751364d008.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365662/normal_5f8a1737a54f0.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4373522/normal_5f88af2712611.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365580/normal_5f8700e0b1a12.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366343/normal_5f878111dd1b6.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366313/normal_5f8773642c781.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368782/normal_5f8782723595d.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4371786/normal_5f8a2237c5748.pdfIn PDF document text
  • https://redunexodozik.weebly.com/uploads/1/3/0/8/130814050/valiwadelel.pdfIn PDF document text
  • https://mojivimimujovo.weebly.com/uploads/1/3/0/8/130874437/44d87feaf8ee.pdfIn PDF document text
  • https://kinojapi.weebly.com/uploads/1/3/2/3/132302846/numawotina.pdfIn PDF document text
  • https://pumowurunumig.weebly.com/uploads/1/3/2/7/132740285/sixasunusimu_vezaninume.pdfIn PDF document text
  • https://vixijusodu.weebly.com/uploads/1/3/0/7/130776714/1028393.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off000065c5.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off000065c5.bin)
  • https://cdn.shopify.com/s/files/1/0500/6186/9214/files/46986254397.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0437/3302/4929/files/literary_terms_dictionary_for_high_school_students.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0437/7057/7045/files/ctoni-2_report_template.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0428/1486/5575/files/arabic_to_urdu_dictionary_apk.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b7d782f7-9eb7-4ed5-851f-3b5b233ff4f1/vamevinawarudolixibi.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/277e87c0-472b-4af9-a85d-31eea431be31/jisidaporar.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/dc61d372-954d-4a27-ae7d-c4af9ef71935/46900293991.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/0b7793ae-33c6-47a8-b3b8-4c9ac91538ac/nizodenowopivotowinadojo.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_off000065c5.bin)

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