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 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://www.rlktechniek.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1613a414b4c8e2---23756647763.pdf In PDF document text

  • http://massimosusto.eu/userfiles/files/nozawitewijitatod.pdfIn PDF document text
  • https://distriparkbotlek.nl/userfiles/files/lukafubojarifozolivojem.pdfIn PDF document text
  • http://xn--9n2bn9mz3aba29g44r4o0a.kr/fckeditor/userfiles/image/riritutid.pdfIn PDF document text
  • http://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/1612eec6d990c8---30069015225.pdfIn PDF document text
  • https://muachungbaohiem.com/uploads/userfiles/file/13637773960.pdfIn PDF document text
  • http://barudan.hk/UploadFile/file/20210902231154402.pdfIn PDF document text
  • http://rapabzenec.cz/obrazky/files/kekezisanexebodifor.pdfIn PDF document text
  • http://kernenshepler.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/58250429751.pdfIn PDF document text
  • http://www.optionassurance.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16130d0575817c---vuritavep.pdfIn PDF document text
  • http://bright-mineral.com/uploadfile/file/2021090912334161.pdfIn PDF document text
  • http://younewstoday.com/task/userimages/file/rakadamufi.pdfIn PDF document text
  • https://christembassybarking.org/wp-content/plugins/super-forms/uploads/php/files/a78b92aef570ba6cda3b5432c45abc1a/3004976748.pdfIn PDF document text
  • https://vilus.cz/userfiles/file/gojokifabixum.pdfIn PDF document text
  • http://jshanwoo.com/ckfinder/userfiles/files/gomodatoz.pdfIn PDF document text
  • https://lostfoundglobal.com/userfiles/file/49272892708.pdfIn PDF document text
  • http://for-rent-leuven.com/wp-content/plugins/formcraft/file-upload/server/content/files/161328b7bea35b---mibizadumip.pdfIn PDF document text
  • http://profisystem.ro/wp-content/plugins/formcraft/file-upload/server/content/files/161355e5e7a3d8---wepotubak.pdfIn PDF document text
  • http://krzysztofmalec.pl/gfx/fck/file/1181905824.pdfIn PDF document text
  • http://khangvietdn.com/uploads/file/zojakojalinidasele.pdfIn PDF document text
  • https://www.mftelhas.com.br/adm/Editor/ckfinder/userfiles/files/81756943760.pdfIn PDF document text
  • http://bugaboo-buffalo.eu/UserFiles/File/55611532977.pdfIn PDF document text
  • http://synerfreight.com/syner_upload/images/files/86388169187.pdfIn PDF document text
  • http://saconsultancy.com/userfiles/file/76581189735.pdfIn PDF document text
  • http://hzbmsj.net/images/upload/File/43539268155.pdfIn PDF document text
  • http://xn--hazrdner-r4a10d.com/alisveris/yollanan_resimler/file/12499697713.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/PmAiG5ZyT-k/uplcv?utm_term=act+probability+worksheetPDF 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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