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
• 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.
• 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://laborke.ru/uplcv?utm_term=among+us+free+online+unblocked PDF link annotation

  • http://nsk-nalogov.net/upload/files/zukarefisujapenemetokata.pdfIn PDF document text
  • http://homeopathyhongkong.org/files/18842449299.pdfIn PDF document text
  • http://fanghsin.com/uploads/files/202109100017496277.pdfIn PDF document text
  • http://ophtalmic-overnight.fr/wp-content/plugins/formcraft/file-upload/server/content/files/161411a101662e---kokezak.pdfIn PDF document text
  • http://www.kevinbrooks.ca/wp-content/plugins/formcraft/file-upload/server/content/files/161312d05c53d2---69775339592.pdfIn PDF document text
  • http://china-baby-clothes.com/d/files/53089803791.pdfIn PDF document text
  • http://tcsm62.org/uploads/news/file/2725662904.pdfIn PDF document text
  • https://www.burnat-provins.ch/ck/ckfinder/userfiles/files/zatabotixezuresu.pdfIn PDF document text
  • http://jingyitech.com/uploadfile/bedinupolonuleruzuluvu.pdfIn PDF document text
  • http://yushendesign.com/images_fck/file/1631090779.pdfIn PDF document text
  • http://3suntech.com/UploadFile/file/20210904091140931.pdfIn PDF document text
  • http://fine-trading-knotwork.com/uploads/media/62941907035.pdfIn PDF document text
  • http://ruresept.ru/files/file/50417995200.pdfIn PDF document text
  • http://reguitti-engineering.it/userfiles/files/2613479398.pdfIn PDF document text
  • http://taiwan-tsai.com/upload/files/50725106611.pdfIn PDF document text
  • http://bsl-trans.ru/admin/ckfinder/userfiles/files/filidapotajarisikisaposi.pdfIn PDF document text
  • http://findmealocalpainter.com/insurazon/admin/userfiles/file/82079697372.pdfIn PDF document text
  • http://sistersaviopublicschool.com/userfiles/file/71391032341.pdfIn PDF document text
  • http://neapol-m.ru/usr/file/23087767416.pdfIn PDF document text
  • https://webgirls-studio.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613b39f75c503---18595754066.pdfIn PDF document text
  • http://ceraunavoltapizzeria.it/userfiles/files/13371769258.pdfIn PDF document text
  • https://manpowernepal.net/ckfinder/userfiles/files/tegowenosixiragijoj.pdfIn PDF document text
  • http://olgapolyakova.com/files/files/56940606345.pdfIn PDF document text
  • http://thestarbusan.com/FileData/ckfinder/files/20210917_1CC19D6D99330203.pdfIn PDF document text
  • http://www.eflox.net/wp-content/plugins/formcraft/file-upload/server/content/files/1614072ea0e263---22026844151.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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