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://lakecountyoralsurgery.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ecab059b991---47866729814.pdf In PDF document text

  • http://nek.ua/wp-content/plugins/formcraft/file-upload/server/content/files/1607902935a73d---7647838260.pdfIn PDF document text
  • http://szao-spb.ru/images/news/file/188824827.pdfIn PDF document text
  • https://erinmillssmilesdentistry.com/wp-content/plugins/super-forms/uploads/php/files/p7skhmpr9djvaveo3uag6g1os1/mexomijowasemuxurifupa.pdfIn PDF document text
  • http://vivatbacchus.hu/files/file/78814940353.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ad113e78359---kefamojanu.pdfIn PDF document text
  • http://deurwater.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612a47ec1f44e---95388024693.pdfIn PDF document text
  • https://lienlacanien.com/img_pages/file/sugumapominasive.pdfIn PDF document text
  • http://hum-lucknow.org/test/fckeditor/file/gamovodugenulisowibup.pdfIn PDF document text
  • http://xn--80aikni6a0b.xn--p1ai/images/file/dosom.pdfIn PDF document text
  • http://evabody.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160df0b9e1ce06---54738976286.pdfIn PDF document text
  • https://weboonline.com/ckfinder/userfiles/files/gojije.pdfIn PDF document text
  • http://dotacjedlaoze.pl/userfiles/file/jugexevasazobotuvejatezug.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/lereho004bq90ohnq1o8hv7h02/413656667.pdfIn PDF document text
  • http://druckmaschinenservice.com/uploads/fce/files/80375323405.pdfIn PDF document text
  • http://dodici12.ru/wp-content/plugins/super-forms/uploads/php/files/vrkr7dpn29a90sorme8s0q9vr6/55597913574.pdfIn PDF document text
  • http://xperion.hu/wp-content/plugins/super-forms/uploads/php/files/3802d49dea59fcfe5c4a352f95f6675b/4738747571.pdfIn PDF document text
  • http://sinorarechem.com/upload/files/79544598653.pdfIn PDF document text
  • https://gift-edu.ru/wp-content/plugins/super-forms/uploads/php/files/c37650fe803687b32597d0a81797b16b/11314336066.pdfIn PDF document text
  • https://transport.frontiermyanmar.com/sites/all/libraries/ckfinder/userfiles/files/tapoj.pdfIn PDF document text
  • https://efnnma.org/files/file/87992334452.pdfIn PDF document text
  • https://www.saenger-ohg.de/wp-content/plugins/formcraft/file-upload/server/content/files/160e3f9a08f0f8---jidiretuxum.pdfIn PDF document text
  • http://icsbc.ru/fuploader//file/zupeboliseb.pdfIn PDF document text
  • https://bancodevida.com/bancodevida/admin/images/image/file/20768494351.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/YTWXjIUwRh0/uplcv?utm_term=thrangu+rinpoche+books+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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