Malicious PDF — malware analysis report

Heuristics 8

• 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://betoxugibujimiv.weebly.com/uploads/1/3/1/0/131071043/buvavutafepozer.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.
• Callback phishing phone lure medium SE_CALLBACK_LURE
  Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
• 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://trafffe.ru/strik?utm_term=softwareag+webmail+login PDF link annotation

  • https://betoxugibujimiv.weebly.com/uploads/1/3/1/0/131071043/buvavutafepozer.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4379841/normal_5f9cceaa9e38b.pdfIn PDF document text
  • https://numuzobiw.weebly.com/uploads/1/3/4/5/134589566/49b8bbc53cee084.pdfIn PDF document text
  • https://gemiwanot.weebly.com/uploads/1/3/4/4/134495393/bdb01c5e306.pdfIn PDF document text
  • https://tumogifizutuvo.weebly.com/uploads/1/3/4/5/134527103/6339283.pdfIn PDF document text
  • https://xuwuperozaposa.weebly.com/uploads/1/3/2/3/132303395/xoribavinij-xinamo.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4479214/normal_5fac01a86d27b.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4392872/normal_5f9231da2765a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4424328/normal_5faa4f4501cf1.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366620/normal_5f88260e6c3d6.pdfIn PDF document text
  • https://foroziroxodom.weebly.com/uploads/1/3/4/6/134647192/xamina-vusanot-kosan-morexono.pdfIn PDF document text
  • https://gofobodobade.weebly.com/uploads/1/3/4/4/134444694/1022236.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4390068/normal_5f9063617a12e.pdfIn PDF document text
  • https://nekekijubexofus.weebly.com/uploads/1/3/4/5/134587401/laxezu.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/50193d2e-6239-40de-8507-42c15e749c83/sixobejezikajigidazadula.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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