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 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.
• Callback phishing phone lure medium SE_CALLBACK_LURE
  Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
• 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://fst-uinsu.net/userfiles/files/tetemid.pdf In PDF document text

  • https://charming-dc.com/uploads/files/202108150730563569.pdfIn PDF document text
  • http://mdsalon.ru/img/lib/file/2055822303.pdfIn PDF document text
  • http://www.olympussverige.se/wp-content/plugins/super-forms/uploads/php/files/r0hjrq3m405tdkedneo3oqmie2/nuwodigodakejamatomupupem.pdfIn PDF document text
  • https://capitalsyndic.com/userfiles/file/visuwifibajoresozekex.pdfIn PDF document text
  • http://sungsam.net/userData/board/file/dabalowafoti.pdfIn PDF document text
  • http://xn----8sbpvg0afdbe.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/p4i9snkbd6bg7nme0jb8ht27b7/56425738941.pdfIn PDF document text
  • http://fotocaroli.it/userfiles/files/9286253095.pdfIn PDF document text
  • http://chikatere.com/Upload/files/70369258021.pdfIn PDF document text
  • http://vitalenzyme.com/uploads/fckupload/file/piporemij.pdfIn PDF document text
  • http://gshosnab.ru/userfiles/file/827873990.pdfIn PDF document text
  • https://aplusadvance.com/naver_editor/data/file/81438676473.pdfIn PDF document text
  • http://cukrarnakolbaba.eu/obrazky/files/1395436054.pdfIn PDF document text
  • http://www.dawnrotaryclub.tw/UserFiles/files/99486342126.pdfIn PDF document text
  • https://camile.vn/wp-content/plugins/super-forms/uploads/php/files/rehcogglvcqkmspt4qr74b6vkc/3194203105.pdfIn PDF document text
  • http://www.sg-callenberg.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c3aea53ffed---91031957259.pdfIn PDF document text
  • http://www.deadclan.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1608bd8e392ad5---nuforulizulok.pdfIn PDF document text
  • https://lakecountyoralsurgery.com/wp-content/plugins/formcraft/file-upload/server/content/files/16088d311539be---64410552116.pdfIn PDF document text
  • https://dfa-finanz.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c8a120ce514---95519698409.pdfIn PDF document text
  • http://www.hypnotiseur.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c1d850c3ae0---9500586745.pdfIn PDF document text
  • http://minuspk.ru/minuspk.ru/userfiles/file/35377269078.pdfIn PDF document text
  • http://www.onegelha.com/wp-content/plugins/super-forms/uploads/php/files/193772455086bd670e72f1f09bf7173f/sigaf.pdfIn PDF document text
  • http://akicgiyim.com/userfiles/file/74586183084.pdfIn PDF document text
  • http://parkhigh65.com/clients/4970/File/didopuluj.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/1xuhb7AK25c/uplcv?utm_term=drivers+license+vancleave+msPDF 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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