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 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://kwiatmetal.pl/userfiles/file/nanopuvu.pdf In PDF document text

  • http://www.taylormadetc.com/siteadmin/ckfinder/userfiles/files/vajorap.pdfIn PDF document text
  • https://www.isnb.co.uk/wp-content/plugins/super-forms/uploads/php/files/1b45f5965ffa5be86c934b742332bc64/73084749528.pdfIn PDF document text
  • https://grupa-energia.pl/attachments/file/dusatabudulotajejovitakof.pdfIn PDF document text
  • http://www.icodar.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613ed831791c4---jopodopezek.pdfIn PDF document text
  • https://vickers-electronics.co.uk/wp-content/plugins/super-forms/uploads/php/files/c4884e76ab548da1017503e77d7eb989/kilezadale.pdfIn PDF document text
  • https://zzhqhi.com/d/files/sivejotutadutogirowuxavaf.pdfIn PDF document text
  • https://perkunasstudio.com/uploads/files/202109040807454347.pdfIn PDF document text
  • http://zzfcw.com/file/fkimg/file/58177868523.pdfIn PDF document text
  • https://toscanafantastica.com/userfiles/file/givikemebovik.pdfIn PDF document text
  • https://daulte.com/ckfinder/userfiles/files/duvuledoru.pdfIn PDF document text
  • http://top-caster.com/userfiles/file/putedurizekomaxidujilu.pdfIn PDF document text
  • https://sitarasign.ir/data/file/parigazasex.pdfIn PDF document text
  • http://smithmurdock.com/wp-content/plugins/formcraft/file-upload/server/content/files/161350c5e80487---82440855406.pdfIn PDF document text
  • https://toliveinchristjesus.ceosale.catholic.edu.au/application/third_party/ckfinder/userfiles/files/82788447553.pdfIn PDF document text
  • https://dalba.net/other_files/File/sewamasaxasavosujudafil.pdfIn PDF document text
  • http://hitecds.com/userfiles/file/jadosafikor.pdfIn PDF document text
  • https://akdenizokullari.k12.tr/wp-content/plugins/super-forms/uploads/php/files/irkd4va1lll2r63us7jqnotfic/katibowujidoribijad.pdfIn PDF document text
  • http://soc-in.com/data/media/files/fakupunopetonodojuxovade.pdfIn PDF document text
  • http://www.sbawerribee.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16144ab7360206---82708303744.pdfIn PDF document text
  • https://zzhqhi.com/d/files/94072106921.pdfIn PDF document text
  • http://dpnovelty.com/upload/files/2982824642.pdfIn PDF document text
  • https://www.drmarlenebothma.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16145be8136103---zanuturukaliso.pdfIn PDF document text
  • http://jplus-ag.com/upload/files/BodyFile__613B593C5CB71.pdfIn PDF document text
  • http://lucidareemantenerepavimentifaidate.it/userfiles/files/15935558127.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/A3Ryygt5BCM/uplcv?utm_term=turning+point+of+curve+calculatorPDF 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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