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 critical 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: action link to abused redirector https://gedenotovet.weebly.com/uploads/1/3/1/3/131379555/mufilojowoxad_vezoku_lowaxukar_lasapivesoz.pdf.
• 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://infrive.ru/pbw?utm_term=what+is+the+concentric+zone+model PDF link annotation

  • https://cdn-cms.f-static.net/uploads/4379483/normal_602aae5a1578b.pdfIn PDF document text
  • https://gedenotovet.weebly.com/uploads/1/3/1/3/131379555/mufilojowoxad_vezoku_lowaxukar_lasapivesoz.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4449984/normal_60419f76201d7.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4481409/normal_60580f81213eb.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4492275/normal_5ff2aad28017d.pdfIn PDF document text
  • https://sekirodalod.weebly.com/uploads/1/3/4/6/134673836/bidebosotodopukegis.pdfIn PDF document text
  • https://nixuxani.weebly.com/uploads/1/3/4/4/134433038/napixezeka.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4474998/normal_5ffa9908ea552.pdfIn PDF document text
  • https://popoxalisasuper.weebly.com/uploads/1/3/0/7/130775362/kumuxiw.pdfIn PDF document text
  • https://buzapakamewogu.weebly.com/uploads/1/3/4/3/134366326/gupateme-gugamogozuvalaw-wujobomatopuput.pdfIn PDF document text
  • https://sijetiwiriwex.weebly.com/uploads/1/3/2/6/132683168/mivenagiwefag.pdfIn PDF document text
  • https://ralubimuxafoku.weebly.com/uploads/1/3/4/3/134373731/pipefijetobox.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4481397/normal_5fcc502475236.pdfIn PDF document text
  • https://keroxoxelesiz.weebly.com/uploads/1/3/1/4/131452869/5993705.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4491169/normal_5fda78976b5e9.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4401716/normal_604d1d0a872e4.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://uploads.strikinglycdn.com/files/d1aa346c-9aa0-444b-9dad-a042b3d2d601/lesijuwituzerujodezu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/9ee90833-0d8f-465b-93b7-ea4dc8cd2932/what_time_to_start_road_to_hana.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/dedb90f6-ea8f-49fb-9842-49647d09477e/83571596201.pdfIn PDF document text
  • http://nowefuro.pbworks.com/w/file/fetch/144597774/878035069.pdfIn PDF document text
  • http://bujolajoxek.pbworks.com/w/file/fetch/144823062/75534408363.pdfIn PDF document text
  • http://kepojijudiva.pbworks.com/w/file/fetch/144527295/valuation_sur_la_frise_chronologique_ce2.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/3a0dd25d-b89e-4bb4-98f2-9b415db86a16/rojululef.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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