Malicious PDF — malware analysis report

Heuristics 8

• 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.
• Embedded JS stream low PDF_JS
  PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
• 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://www.siscard.com/wp-content/plugins/formcraft/file-upload/server/content/files/1611474b3cd68b---3856074242.pdf In PDF document text

  • https://anmimar.com/royal/userfiles/file/babuditibosifoba.pdfIn PDF document text
  • http://abwingsde.com/uploads/files/vomojobodefeparuvur.pdfIn PDF document text
  • https://landbar.com/app/webroot/js/ckfinder/core/connector/upload/files/77567535612.pdfIn PDF document text
  • https://novitas.ro/files/86369087616.pdfIn PDF document text
  • http://ambulatorioveterinariocigliano.com/userfiles/files/2526222108.pdfIn PDF document text
  • http://www.masozilina.sk/ckfinder/userfiles/files/92387087558.pdfIn PDF document text
  • http://hillsdalehorseboarding.com/ckfinder/userfiles/files/rebavu.pdfIn PDF document text
  • https://gym-rectif.fr/ckfinder/userfiles/files/85933619788.pdfIn PDF document text
  • http://bclgrouptt.com/userfiles/file/77631535101.pdfIn PDF document text
  • http://www.jimenez-casquet.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c2ae2d6291---gadunogi.pdfIn PDF document text
  • http://jenistudio.com/upload/FCK/file/46638642867.pdfIn PDF document text
  • https://alnahamgroup.com/userfiles/file/67061164524.pdfIn PDF document text
  • http://schturman.ru/files/files/98722552814.pdfIn PDF document text
  • http://idaskitchen.org/clients/d/d8/d86ca706a5600d452cde81e4a21b2d68/File/46493534850.pdfIn PDF document text
  • http://videofilm-tv.ru/content/File/dokigejiwarinixus.pdfIn PDF document text
  • http://aurora-c.jp/files/files/57324394246.pdfIn PDF document text
  • http://fbchitchcock.org/clients/8/8b/8bdff38a390027835eb24981312b950c/File/18191617336.pdfIn PDF document text
  • http://qqsbg.net/uploads/file/pugizapokereju.pdfIn PDF document text
  • https://www.gml.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a6e8297e7a2---27883695621.pdfIn PDF document text
  • http://btc-ltd.com/upload/file/49040742959.pdfIn PDF document text
  • http://accurateverdicts.com/wp-content/plugins/formcraft/file-upload/server/content/files/16072006c1520c---wodureteveliv.pdfIn PDF document text
  • http://mg001.cn/upload_fck/file/2021-7-28/20210728142940666153.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BvfzZFkJO3s/uplcv?utm_term=blessed+be+your+name+chords+key+of+a+pdfPDF 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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