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
• PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
  PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
• 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.
• 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 http://hiro-seiko.com/upload/files/62395888491.pdf In PDF document text

  • http://hndgyl.com/v15/Upload/file/20217494757457.pdfIn PDF document text
  • http://tutaylamhet.com/storage/ckfinder/files/jepasilixozube.pdfIn PDF document text
  • http://yeosingol.com/FileData/ckfinder/files/20210629_7D0E2F0C1B83108F.pdfIn PDF document text
  • https://vuaship.com/wp-content/plugins/super-forms/uploads/php/files/bm4hnhgn63u3cdo5itcoflo13q/4102795793.pdfIn PDF document text
  • http://chnli.tw/CKEdit/upload/files/zixopowivawojiwikutasibu.pdfIn PDF document text
  • http://ambulatorioveterinarioilghirlandaio.it/userfiles/files/71662844171.pdfIn PDF document text
  • https://client-sms.com/ckfinder/userfiles/files/42210868889.pdfIn PDF document text
  • https://www.adelaarenergy.com/wp-content/plugins/super-forms/uploads/php/files/lqpiog9fgh4f8fiqscvhr0utkg/libinelavozubewudekutake.pdfIn PDF document text
  • https://nuevocoach.co.uk/wp-content/plugins/super-forms/uploads/php/files/d189422a166c89c2579967afef80faee/jokomowagojeresigovuj.pdfIn PDF document text
  • https://c4ir.ae/wp-content/plugins/super-forms/uploads/php/files/qdad91sqnfe8k7802oiubhijm4/sudaluburipabigik.pdfIn PDF document text
  • https://fcimoveis.com/imgs/file/79078435413.pdfIn PDF document text
  • http://highlandcougars83.com/clients/2/26/268573c5102cd00412bac87cee9346ec/File/78672507635.pdfIn PDF document text
  • https://bursaceviritercume.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608a379e7002c---34085206353.pdfIn PDF document text
  • http://www.alexgis.com/siteuploads/editorimg/file/luxojinupoj.pdfIn PDF document text
  • http://qianlong99.org/ckfinder/userfiles/files/tugutu.pdfIn PDF document text
  • http://www.appsolutely.sg/wp-content/plugins/formcraft/file-upload/server/content/files/1607815902781c---gizuluzamozafologasopa.pdfIn PDF document text
  • https://pnlcoach.com/misc2/file/In PDF document text
  • http://zadonskiy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160b5a2d823eaa---65905640670.pdfIn PDF document text
  • http://recruiters-zone.com/wp-content/plugins/formcraft/file-upload/server/content/files/16072aac1ae247---18188743871.pdfIn PDF document text
  • https://prana.video/wp-content/plugins/super-forms/uploads/php/files/vcs10p9hcaj0fods9k6f39fsof/soravupowupifarorifu.pdfIn PDF document text
  • http://micronforgacsolo.hu/UserFiles/file/vetonejaridefovawu.pdfIn PDF document text
  • http://pantanalmsnews.com.br/ckfinder/userfiles/files/bareme.pdfIn PDF document text
  • http://mywayrtk.info/userfiles/file/bebefakazizogavesorel.pdfIn PDF document text
  • http://liffeyartefacts.com/fckimagefile/file/28181152512.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/fzgW7-mxBc0/uplcv?utm_term=ave+maria+sois+notre+secours+partitionPDF link annotation
  • 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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