Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• 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.
• Brand-impersonation credential phishing lure high SE_BRAND_CREDENTIAL_PHISH
  Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: call-to-action link host does not match the impersonated brand: https://maypoin.ru/123?utm_term=kaspersky+antivirus+trial+version++for+pc.
• 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://maypoin.ru/123?utm_term=kaspersky+antivirus+trial+version++for+pc PDF link annotation

  • http://perugujusebirir.22web.org/vistas_5th_edition_workbook.pdfIn PDF document text
  • http://zirirukefup.22web.org/guidesman_3_inch_folding_knife.pdfIn PDF document text
  • http://sdfsdfsdf.shaketorch.com/how_reliable_is_a_2009_chevy_traverse.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • http://furenenivigaz.rf.gd/poulan_pro_5020_chainsaw.pdfIn PDF document text
  • https://0306adf0-382e-42f1-903d-71c3961c97f1.filesusr.com/ugd/7ff653_fe9b9add1d74402f9c5accef634e8b91.pdf?index=trueIn PDF document text
  • https://297de083-771a-4730-a3b8-a2afe8c7d209.filesusr.com/ugd/47424f_1589fc527d5b4aab848671ab9a803721.pdf?index=trueIn PDF document text
  • http://zelixedamaxux.rf.gd/bi_fold_brochure_indesign_template_free.pdfIn PDF document text
  • http://rizinesuri.epizy.com/2167246111.pdfIn PDF document text
  • http://bosadubarelazu.rf.gd/85328044626.pdfIn PDF document text
  • https://973697ad-ffa4-4f9d-85cd-0c9d1ea039ee.filesusr.com/ugd/5f5755_b90805202191487f86b6f6651874b2e0.pdf?index=trueIn PDF document text
  • https://40e214c1-1950-44e8-a195-e2c6eeb23253.filesusr.com/ugd/a517f4_0b2935851df3460096ce575c540337e2.pdf?index=trueIn PDF document text
  • http://jepafuzezax.epizy.com/17048842772.pdfIn PDF document text
  • http://ramapenutizawa.epizy.com/come_si_fa_l_analisi_logica.pdfIn PDF document text
  • https://8eefcaf3-52f5-4123-8be5-b1f0aaeea45e.filesusr.com/ugd/1d3654_32f7a9de0db24cbab0ff4dd9ec5c0b6e.pdf?index=trueIn PDF document text
  • https://56148a0a-83a3-4003-94ff-78d3044b7c00.filesusr.com/ugd/6f5f23_938f446b2edd4244819d46456998e0b7.pdf?index=trueIn PDF document text
  • https://5b3fc17b-a4fb-4144-9a53-ff617e35bc6a.filesusr.com/ugd/696117_8399be439b424ada8352bb33a66295db.pdf?index=trueIn PDF document text
  • http://vusegax.rf.gd/english_arabic_dictionary_book.pdfIn PDF document text
  • https://746420f6-3007-491b-ba72-fd43be5094e5.filesusr.com/ugd/277b62_9818245648dd4903a9e4358841099c2f.pdf?index=trueIn PDF document text
  • https://f200304d-316b-45a9-b05c-680123ec6d1a.filesusr.com/ugd/aad1a2_a787ee963d204672b552b2f95ee36d52.pdf?index=trueIn 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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