Malicious PDF — malware analysis report

Heuristics 5

• 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.
• External URI info PDF_URI
  PDF contains an external URL action
• 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://zajinet.ru/strik?utm_term=def+programmed+instruction PDF link annotation

  • https://cdn.sqhk.co/vefemenivu/iaibWGU/62893179121.pdfIn PDF document text
  • https://puwulafu.weebly.com/uploads/1/3/5/3/135329465/6bc1760df.pdfIn PDF document text
  • http://jabewes.medianewsonline.com/92533129461.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4417525/normal_60510fecd0b55.pdfIn PDF document text
  • https://wilulesutazi.weebly.com/uploads/1/3/3/9/133997377/nenepokidate.pdfIn PDF document text
  • https://raguloduw.weebly.com/uploads/1/3/4/0/134041620/ed793c4b.pdfIn PDF document text
  • https://cdn.sqhk.co/mewivupa/hifhdgf/buzz_lightyear_costume_adult.pdfIn PDF document text
  • https://cdn.sqhk.co/xenotami/ifgdeGO/teledikisowidamitesanerem.pdfIn PDF document text
  • https://wizenifove.weebly.com/uploads/1/3/4/3/134308138/dugujakoreju.pdfIn PDF document text
  • https://zaxewunatomilar.weebly.com/uploads/1/3/4/1/134131499/5608c3f9f52c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4379476/normal_60587a047aff2.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4489609/normal_5ff75697ae369.pdfIn PDF document text
  • https://cdn.sqhk.co/pitekofotada/4aY45YQ/alien_warfare_trailer_castellano.pdfIn PDF document text
  • https://cdn.sqhk.co/gegenosuzun/jajijdD/minecraft_skins_free_games.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4379222/normal_6018a1bab5d9d.pdfIn PDF document text
  • http://sivelural.mygamesonline.org/35090203993.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://1cf095b7-1d29-4152-b82c-7733cf7ba0c7.filesusr.com/ugd/c1de29_002789570e424fc88ba700e3dbd1d682.pdf?index=trueIn PDF document text
  • https://uploads.strikinglycdn.com/files/2de67cfd-e936-4770-b4c5-b0897c2d201b/kigeletufavexitat.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/36a493f5-e72d-435e-8804-50bfe103d677/call_of_duty_modern_warfare_beta_preload.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/5e867aaf-44d6-45b0-a819-8f81572a9882/how_to_program_a_genie_remote_to_my_tv.pdfIn PDF document text
  • https://fb9345b8-40be-4608-a8ff-9c5427dba92f.filesusr.com/ugd/98d639_d1e8bb0760294b838376201adcc46909.pdf?index=trueIn PDF document text
  • http://kijonag.onlinewebshop.net/articles_about_school_rules_and_regulations.pdfIn PDF document text
  • https://72858ab8-d36f-4bc2-b208-e5ec56e76d01.filesusr.com/ugd/3a4e0e_6989c1e540d14b1381ca230bd24fe220.pdf?index=trueIn PDF document text
  • https://uploads.strikinglycdn.com/files/f834ebe7-ed49-4cb2-a0ba-594117a0db7e/physicians_desk_reference_free_download.pdfIn PDF document text
  • https://8d40832c-2e2b-4284-8151-bb35a16d80ac.filesusr.com/ugd/05d014_505d25106dd54e169df42ba848767be3.pdf?index=trueIn PDF document text
  • https://a84030a7-2e48-4039-807a-383e2b7216cc.filesusr.com/ugd/c5d40f_026a31cf967340faae83a4d7203b997e.pdf?index=trueIn PDF document text
  • https://uploads.strikinglycdn.com/files/d95edd3b-76cf-4b40-bd0b-fcfa4a5e959c/how_much_does_a_vizio_70_inch_tv_weigh.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 PDF document text

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