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
• PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
  PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
• 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.
• QR-code redirect lure medium SE_QR_LURE
  Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
• 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.
• Embedded JS stream low PDF_JS
  PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
• 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://oniceh.ru/uplcv?utm_term=what+is+auto+sync+data+mean PDF link annotation

  • https://unicon-msk.ru/data/files/jarekizukis.pdfIn PDF document text
  • https://oasis-travel.ro/files/96946962514.pdfIn PDF document text
  • http://ourgans.org/userfiles/files/xowekibo.pdfIn PDF document text
  • http://www.psstrecno.sk/wp-content/plugins/formcraft/file-upload/server/content/files/1612f5b0104300---nabiposuzudijugasediz.pdfIn PDF document text
  • http://bhhangkhong.com/upload/images/files/pajorojixovinunatetitiso.pdfIn PDF document text
  • http://thumpamonpally.com/userfiles/file/35407595719.pdfIn PDF document text
  • http://burchiellati.com/file_fck/file/juguwupozewudeza.pdfIn PDF document text
  • https://braindevelopmentmaps.org/userfiles/files/fatarat.pdfIn PDF document text
  • http://nassagroup.org/app/webroot/js/ckfinder/userfiles/files/tesasuvemerikikomojik.pdfIn PDF document text
  • http://adanateknikservis.web.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1613f861893205---subesidetineloxa.pdfIn PDF document text
  • http://midesignvn.com/uploads/files/waxoba.pdfIn PDF document text
  • https://heuresromantiques.com/upload/files/86052418662.pdfIn PDF document text
  • http://studiotecnicolamanna.com/userfiles/files/96180021854.pdfIn PDF document text
  • https://jbdclothiers.net/emailer/userfiles/file/8005632825.pdfIn PDF document text
  • http://allgeology.ru/ckfinder/userfiles/files/nunolemavonirakabase.pdfIn PDF document text
  • https://arihantgranites.in/wp-content/plugins/super-forms/uploads/php/files/058e0c2ca3b018186c1426f35ea5bc9c/befuvek.pdfIn PDF document text
  • https://anakaygame.net/calisma2/files/uploads/vuxasori.pdfIn PDF document text
  • https://www.pharmawell.eu/ckfinder/userfiles/files/nexuzozutogivufe.pdfIn PDF document text
  • http://yokohama-model.com/userfiles/files/ketupofisurojasiduwo.pdfIn PDF document text
  • http://secretlove.ch/ckfinder/userfiles/files/16848562557.pdfIn PDF document text
  • http://constructionone.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16140811c6f2fa---12415972821.pdfIn PDF document text
  • https://ichibaninfotech.com/ckfinder/userfiles/files/buramezitibozejix.pdfIn PDF document text
  • http://seednseed.com/admin/fckfiles/file/vasoledizow.pdfIn PDF document text
  • https://toptenstudy.com/upload/files/BodyFile__612FBEF73DE88.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://dejavu.sourceforge.netIn PDF document text
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

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