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.
• 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) or Microsoft license-boilerplate 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://vilenefex.ru/strik?utm_term=hold+memo+dr+meaning PDF link annotation

  • https://cdn-cms.f-static.net/uploads/4404757/normal_5fd724ee5b55b.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4378382/normal_6023952bcf2d8.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4490133/normal_604d334ca72cf.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4418972/normal_5fceee3551ea1.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4368218/normal_5fe134ce01ca4.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4446287/normal_6003507cdf764.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4417145/normal_5fed22f8c5c22.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4462368/normal_60550e081d18a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4384154/normal_6068bb1186a05.pdfIn PDF document text
  • https://jiwazakamofefuf.weebly.com/uploads/1/3/4/0/134041011/fc12284.pdfIn PDF document text
  • https://mozurizubomexaj.weebly.com/uploads/1/3/4/6/134643417/8c28c59c1f.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4490252/normal_601ff50ce4712.pdfIn PDF document text
  • https://pazibeze.weebly.com/uploads/1/3/1/6/131636707/lorokavidejez-namijoviziwimom-vifus-wibolebapa.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4456999/normal_60442ecf4d144.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4408993/normal_6063e96a88939.pdfIn PDF document text
  • https://piminuwimizo.weebly.com/uploads/1/3/4/6/134674326/piwog.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4501770/normal_5fde6f1a457b5.pdfIn PDF document text
  • https://static.s123-cdn-static-d.com/uploads/4496374/normal_60b05aeb03098.pdfIn PDF document text
  • https://fiwobezamarevev.weebly.com/uploads/1/3/2/7/132740324/fozapul-vekumujufuj-bagosaxaku-makewanarobobim.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4486037/normal_600253ff781be.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/1f06d7d6-a6ec-49d3-8773-ebf744781bf5/how_do_i_reset_my_hp_pavilion_bios_password.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/5409ee21-2f24-4104-a932-08dadea5ed5d/nugopewotajefezu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/40be2fd3-449d-44f9-a32b-fcc955e40d7a/organic_chemistry_textbook_klein.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e21d0891-00af-462f-b3e6-67870c429d95/vufolerutef.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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