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://pistant.ru/uplcv?utm_term=tetrabiblos+free+pdf PDF link annotation

  • https://aokman-drive.com/d/files/xudozazogeni.pdfIn PDF document text
  • http://www.ausafrica.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160afaa0bd636a---bemuzajulimanulaju.pdfIn PDF document text
  • http://martonelektro.hu/files/file/muzobatu.pdfIn PDF document text
  • http://girc.ncue.edu.tw/ckfinder/ckfiles/files/80177543410.pdfIn PDF document text
  • http://shmgec.com/Uploadfiles/files/2620793641.pdfIn PDF document text
  • https://deedpoll.sg/wp-content/plugins/super-forms/uploads/php/files/9e530859eccf5b0ffd628263c29440f8/67662789727.pdfIn PDF document text
  • https://imapcb.org/wp-content/plugins/super-forms/uploads/php/files/h3qkp3rhln7ce0bdjc0ina6in4/5400995973.pdfIn PDF document text
  • http://ambulatorioveterinariobubiniregini.eu/userfiles/files/8199181634.pdfIn PDF document text
  • https://alfa-pechati.ru/wp-content/plugins/super-forms/uploads/php/files/a78cedd2dad6edfa331c09f1dbf9995e/58584591145.pdfIn PDF document text
  • http://birizgardenhotel.com/userfiles/file/74591630147.pdfIn PDF document text
  • http://lammensfilip.be/uploads/files/pajabivel.pdfIn PDF document text
  • http://booklandbooks.com/userfiles/file/vujodotikibi.pdfIn PDF document text
  • https://dacoma.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160ffafbff3d13---33813711248.pdfIn PDF document text
  • https://monacollection.ua/wp-content/plugins/super-forms/uploads/php/files/a1874b6ac84bb30f95ea61871f9489fe/rovamiropim.pdfIn PDF document text
  • https://www.restaurant-latableedevercel.com/ckfinder/userfiles/files/2488293722.pdfIn PDF document text
  • https://www.lightingsolutionsinc.net/wp-content/plugins/super-forms/uploads/php/files/5ba9df81c387c6c1a9d97f7c20672135/5449748083.pdfIn PDF document text
  • https://pro-biomed.com/admin/userfiles/file/46909678258.pdfIn PDF document text
  • https://aadharshilaschool.org/userfiles/file/kolagipumizan.pdfIn PDF document text
  • https://postscriptproductions.com/wp-content/plugins/formcraft/file-upload/server/content/files/160872d86ac736---20287533906.pdfIn PDF document text
  • http://www.maarsehoveniers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1608ace3c50c16---bamobopozakanepal.pdfIn PDF document text
  • http://ecilingirler.com/resimler/files/nasufizofore.pdfIn PDF document text
  • http://ipsgroupjjn.org/userfiles/file/34592582992.pdfIn PDF document text
  • https://vashadvokat82.ru/wp-content/plugins/super-forms/uploads/php/files/44bf7f65bbe8501c3dc207b76c8d4ae7/manakaxapawutonakufewelu.pdfIn PDF document text
  • http://jessicarossitto.com/clients/7/7c/7c16b8c799dae9ffcd1258f31d6ff645/File/65179519009.pdfIn PDF document text
  • http://ctyrkolky-gamax.cz/data/dokumenty/99063565151.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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