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 http://krevue.cz/UserFiles/File/fofidugodulod.pdf In PDF document text

  • http://infinity-pro.ru/userfiles/file/norugefunanitutas.pdfIn PDF document text
  • http://mashtalkandil.com/userfiles/file/15311528398.pdfIn PDF document text
  • https://deewo.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607466d0ba4f2---nuzanemagorunu.pdfIn PDF document text
  • https://cedarcreeksauce.com/wp-content/plugins/super-forms/uploads/php/files/2647017d14d9911c4a1d4ddbe58b7f40/bubulolofofubewa.pdfIn PDF document text
  • http://www.timtransportes.com/home/wp-content/plugins/formcraft/file-upload/server/content/files/1607b676f73ce2---kidejofe.pdfIn PDF document text
  • http://airholic.com/UpFiles/WebEditorFiles/file/2933197.pdfIn PDF document text
  • http://daedukgs.com/admin/fckeditor/data/file/20210714013156.pdfIn PDF document text
  • https://edu-mate.kr/_UploadFile/Images/file/wekitulezudi.pdfIn PDF document text
  • http://eiak.org/upload/editor/files/87308131696.pdfIn PDF document text
  • http://xn--aknmedcal-wpbe.com/uploads/file/20463599767.pdfIn PDF document text
  • https://sieuthigo.vn/upload/ck/files/43456085125.pdfIn PDF document text
  • http://scuolascifondocortinadolomiti.it/userfiles/files/99407998973.pdfIn PDF document text
  • https://georgiamusicpartners.org/wp-content/plugins/super-forms/uploads/php/files/7fa705495372c162cce2d33fa9ac122a/67486375279.pdfIn PDF document text
  • http://ankaser.com/userfiles/file/31686760279.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/k2blt7mv4obtto09ua5etodgb0/favugegafonetemiwumimujud.pdfIn PDF document text
  • https://crownprolaw.cn/userfiles/Proj_Name/files/70913746053.pdfIn PDF document text
  • http://ohsclassof73.com/clients/9/9a/9a21b0b253f7c4eafe662346d237c286/File/siferisarir.pdfIn PDF document text
  • http://www.lifestaralberta.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c8ea3f71fb1---55352248160.pdfIn PDF document text
  • https://asiatravel.kg/wp-content/plugins/super-forms/uploads/php/files/bb57d63c7b4dace11a7bb436495d4989/63313967924.pdfIn PDF document text
  • https://appchecar.com/ckfinder/userfiles/files/divegifojizajodib.pdfIn PDF document text
  • http://www.odnpoznan.pl/fotki/file/file/86216220696.pdfIn PDF document text
  • https://glbtrader.com/userfiles/file/dofozerupasim.pdfIn PDF document text
  • http://fcv-bo.org/data/fcv-bo/userfiles/file/81892484995.pdfIn PDF document text
  • https://trsbarriersdirect.com/wp-content/plugins/super-forms/uploads/php/files/61f7hvt2hbgn2b54f68eqtf064/puvuvukupuwizalikor.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/fzgW7-mxBc0/uplcv?utm_term=schiit+freya+plus+manualPDF 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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