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://krisoc.ru/uplcv?utm_term=how+to+check+if+rolex+serial+number+is+real PDF link annotation

  • http://nieruchomosci-swidnica.pl/userfiles/file/66101769284.pdfIn PDF document text
  • http://07-3739589.com/CKEdit/upload/files/josuwadomexerowevavuvikap.pdfIn PDF document text
  • https://kindliving.org/wp-content/plugins/super-forms/uploads/php/files/tmp/jutanidejitopopisex.pdfIn PDF document text
  • https://www.enterpriselighting.com/wp-content/plugins/super-forms/uploads/php/files/0126d35928bbaecb1b6a9bff13686b1e/82566459785.pdfIn PDF document text
  • http://sjhrz.com/images/upload/File/18929759715.pdfIn PDF document text
  • http://laboratoriodiprogettazione-ve.it/userfiles/files/58185433379.pdfIn PDF document text
  • https://metroguards.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1608e7a4730860---93584039759.pdfIn PDF document text
  • http://bsl-trans.ru/admin/ckfinder/userfiles/files/41291988909.pdfIn PDF document text
  • https://daquin-ferriere.fr/userfiles/file/digapewoso.pdfIn PDF document text
  • https://www.electriclighting.com/wp-content/plugins/super-forms/uploads/php/files/56bdcbac7fb66892a599f1158549538b/vuzemepogigurojufa.pdfIn PDF document text
  • http://c2mag.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084411063611---vetigivokixomotak.pdfIn PDF document text
  • http://zjqzzx.com/uploadfile/file/2021062412441073499.pdfIn PDF document text
  • https://kvartira-zalog.ru/wp-content/plugins/super-forms/uploads/php/files/92e6586a9cc0e57665946ce44e0a112c/jubejowu.pdfIn PDF document text
  • http://dilimkebab.com/userfiles/file/87656121925.pdfIn PDF document text
  • http://novussiteyonetimi.com/uploads/file/tutarerin.pdfIn PDF document text
  • http://www.peplex.it/wp-content/plugins/formcraft/file-upload/server/content/files/160afd33ca53cf---18152217099.pdfIn PDF document text
  • https://www.hospedeagora.com.br/wp-content/plugins/super-forms/uploads/php/files/j0gkfmf2k9vlsmq4k1kkm753a6/javuledawisinexizuk.pdfIn PDF document text
  • http://archerelectricsupply.com/userfiles/file/tawomojoxetupubanip.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/vrfmnng99005vmv0vh1cchmbd2/88517973225.pdfIn PDF document text
  • http://xn----ctbguteehkho5h.xn--p1ai/ckfinder/userfiles/files/gajojekewaruragis.pdfIn PDF document text
  • https://jetzterstrecht.hamburg/wp-content/plugins/super-forms/uploads/php/files/gitvkou2c4fjant7mco8ql8p73/pulofufozujujozesezav.pdfIn PDF document text
  • http://unipsyclinic.com/userfiles/file/20210605022547.pdfIn PDF document text
  • http://www.sg-callenberg.de/wp-content/plugins/formcraft/file-upload/server/content/files/1606d9f6e74348---52706400535.pdfIn PDF document text
  • https://www.electriclighting.com/wp-content/plugins/super-forms/uploads/php/files/e3c51324c1bea3d797366d749da31293/dajoku.pdfIn PDF document text
  • 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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