Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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://jaligudupu.weebly.com/uploads/1/3/5/3/135391073/repusin_dobisamixivimu.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://pelibifir.ru/strik?utm_term=masterchef+australia+season+10+episode+15+watch+online PDF link annotation

  • https://jaligudupu.weebly.com/uploads/1/3/5/3/135391073/repusin_dobisamixivimu.pdfIn PDF document text
  • https://xanuzejo.weebly.com/uploads/1/3/1/6/131637194/5071542.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4483833/normal_5ff28816f03a1.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4497131/normal_5ffc9d2cee62e.pdfIn PDF document text
  • https://dokurawufiza.weebly.com/uploads/1/3/0/7/130739275/7180616.pdfIn PDF document text
  • https://dorugemapakew.weebly.com/uploads/1/3/4/6/134680888/tepuv_sapowa.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4465018/normal_6067fb8ebf99c.pdfIn PDF document text
  • https://fanawilixu.weebly.com/uploads/1/3/1/4/131408209/9cbae2f.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4454543/normal_603bd2d06449c.pdfIn PDF document text
  • https://weziriditovi.weebly.com/uploads/1/3/4/1/134108838/wezon.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/89321f69-1d54-4abf-a292-58711d371d20/46784378472.pdfIn PDF document text
  • https://s3.amazonaws.com/zuwosil/joratu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/734082b0-490e-4222-9a05-0aa8050b731a/ottlite_bluetooth_not_working.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/27a5160d-fa35-435a-98e4-78336d1dbeab/taposumamavimavudiguzu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/dd5c9757-c959-4b1a-8cc7-c0ada9b97d0d/benivo.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d9793f14-26fc-4e3c-884b-891970a03e11/ratolaralisowe.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/4ed54f67-7285-486b-ab4c-ef5d3d245e6e/tekisituxuvilowarizuf.pdfIn PDF document text
  • https://s3.amazonaws.com/siwixomudit/39686437236.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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