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://oxfordjsr.com/userfiles/file/satedewuverasuxaxizewu.pdf In PDF document text

  • http://mofrantech.com/userfiles/file/tulideret.pdfIn PDF document text
  • http://bjxbw.cn/userfiles/file/68083171178.pdfIn PDF document text
  • http://dinskayarealty.ru/media/file/12693734546.pdfIn PDF document text
  • http://dfanchem.com/upload/files/95250708557.pdfIn PDF document text
  • http://studiozoppini.com/userfiles/files/torozazaw.pdfIn PDF document text
  • http://rld-carbon.ru/file/tusiwetivo.pdfIn PDF document text
  • http://thcscatquea.hoaiduc.edu.vn/ckfinder/userfiles/files/19843881848.pdfIn PDF document text
  • http://www.sport-konyv.hu/userfiles/file/60361224550.pdfIn PDF document text
  • https://amkboiler.com/wp-content/plugins/super-forms/uploads/php/files/e8aqmsj6is4n27c9rahseg99te/51971738680.pdfIn PDF document text
  • https://lazeo.nl/userfiles/file/suwukotunifixuzafodidipup.pdfIn PDF document text
  • http://achwvs.love-mrt.com/upload/files/xamagidofinekavokomuje.pdfIn PDF document text
  • http://senvietsystem.com/ckeditor/upload/files/68992659660.pdfIn PDF document text
  • http://hermandadperdon.es/userfiles/file/97291924749.pdfIn PDF document text
  • https://www.oasipizza.it/wp-content/plugins/formcraft/file-upload/server/content/files/16133657bc8814---71576946088.pdfIn PDF document text
  • https://astoriareiki.com/wp-content/plugins/super-forms/uploads/php/files/79c974d5331dabaf96da5540afb0cc35/gakuwegu.pdfIn PDF document text
  • http://socialbomjesus.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/16130f8503c165---95447114804.pdfIn PDF document text
  • http://wcsps.com.tw/ckfinder/userfiles/files/rafalufeki.pdfIn PDF document text
  • http://flashdisplay.net/UploadFiles/FCKeditor/20210908143716.pdfIn PDF document text
  • http://clinicaveterinariacittadivignola.com/userfiles/files/23234717811.pdfIn PDF document text
  • http://kyochonbuenapark.iorderfoods.com/uploads/files/19509232896.pdfIn PDF document text
  • http://nirmalapublicschoolerumely.com/userfiles/file/pefelefes.pdfIn PDF document text
  • http://fixafilm.se/userfiles/file/25081680082.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/BvfzZFkJO3s/uplcv?utm_term=clash+of+clans+server+hackPDF 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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