Malicious PDF — malware analysis report

Heuristics 9

• 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://katexiru.weebly.com/uploads/1/3/4/5/134576370/xotobugatib-rumimuzigabosij-tesigakamija-dexumixinovosit.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.
• Fake invoice / payment lure low SE_INVOICE_LURE
  Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
• 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://bologen.ru/strik?utm_term=what+does+rm+stand+for+in+business PDF link annotation

  • http://xeberul.mywebcommunity.org/quran_free_download.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4389106/normal_6015923dcf4b6.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4418401/normal_5fdf7289c6b37.pdfIn PDF document text
  • https://katexiru.weebly.com/uploads/1/3/4/5/134576370/xotobugatib-rumimuzigabosij-tesigakamija-dexumixinovosit.pdfIn PDF document text
  • https://senovaxevuka.weebly.com/uploads/1/3/5/3/135304629/120c69b7159a81b.pdfIn PDF document text
  • https://xelavizagak.weebly.com/uploads/1/3/5/3/135325118/lisuj-sokile-mubewerodapu-tizivu.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4407314/normal_604c9aa8219ff.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4497346/normal_606e4a372eeeb.pdfIn PDF document text
  • http://jadenefabive.iblogger.org/figosep.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4393904/normal_60047669c7de5.pdfIn PDF document text
  • https://wosabizovores.weebly.com/uploads/1/3/4/5/134577485/4168929.pdfIn PDF document text
  • http://fezelegafefuv.mywebcommunity.org/sipuduxagosegeritononu.pdfIn PDF document text
  • https://fobopalok.weebly.com/uploads/1/3/4/4/134401292/606029f75bc.pdfIn PDF document text
  • https://titoduxelet.weebly.com/uploads/1/3/5/3/135399046/3580986.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://b913155d-2712-4fd4-bcc6-651970a8c456.filesusr.com/ugd/e39924_07921a925bfc4155b5f0dbf9be79fd10.pdf?index=trueIn PDF document text
  • https://276658a2-c6b1-4a23-bc3b-56c82bce4278.filesusr.com/ugd/f9448a_6077d1e81bfb4a9085f13bd5ef6501b8.pdf?index=trueIn PDF document text
  • https://83bd47e3-138d-48d8-8d00-514fe13b91b0.filesusr.com/ugd/c87a2f_9ca62ca0deda467f817d9d3df161785d.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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