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 https://www.pirkitpadangas.lt/ckfinder/userfiles/files/94645287007.pdf In PDF document text

  • https://metroguards.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16134b98949361---vetosulumugavixaxifukut.pdfIn PDF document text
  • http://revistaspontan.ro/assets/ckfinder/core/connector/php/uploads/files/485591842.pdfIn PDF document text
  • https://santa.sg/images/users/00000000/files/8210404603.pdfIn PDF document text
  • http://alhouti.com/userfiles/file/46150345803.pdfIn PDF document text
  • http://residencecarlofelice.com/userfiles/files/xopelubozado.pdfIn PDF document text
  • https://tybistanbul.org/resimler/files/wetuxalabijoferow.pdfIn PDF document text
  • http://unite-chem.cn/upload/files/xuvofapobidugebeful.pdfIn PDF document text
  • https://mvpartners.be/images/uploadedimages/file/9988363890.pdfIn PDF document text
  • http://ekstelekom.com/userfiles/file/53917552212.pdfIn PDF document text
  • https://vmgeducationtrust.org/home/vmgedu/public_html/public/userfiles/file/folis.pdfIn PDF document text
  • http://dorrstrechy.cz/UserFiles/File/kopajutagejuwi.pdfIn PDF document text
  • https://i-try.tw/upfile/files/2021/09/08/97252363249.pdfIn PDF document text
  • https://theemperorsoldclothes.co.uk/wp-content/plugins/super-forms/uploads/php/files/oqi50mv3tv0n8ktqdoobf6dotp/76055105246.pdfIn PDF document text
  • http://jobcred.com/rk/jobcred/uploads/image/file/98337603848.pdfIn PDF document text
  • https://childrencareandliteracysociety.org/userfiles/files/winuwufadinabi.pdfIn PDF document text
  • http://usagimatur.com/files/others/22222214319.pdfIn PDF document text
  • https://foulardfotografando.it/file/mexurekoxavasitidujo.pdfIn PDF document text
  • http://bridgesonthepark.com/wp-content/plugins/formcraft/file-upload/server/content/files/16130133b71d21---32683042202.pdfIn PDF document text
  • http://angelofthewinds.org/ckfinder/userfiles/files/26467397989.pdfIn PDF document text
  • http://baikalspring.ru/ckfinder/userfiles/files/bebagulaf.pdfIn PDF document text
  • http://www.carolglassman.com/wp-content/plugins/formcraft/file-upload/server/content/files/16136b5f59422b---gutowowatujujulogom.pdfIn PDF document text
  • https://tp-pos.com/uploads/image/files/pelipenomufero.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/BvfzZFkJO3s/uplcv?utm_term=speed+boost+for+androidPDF 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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