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 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://2446665a.ru/ckfinder/userfiles/files/ganex.pdf In PDF document text

  • http://grapes4u.ca/sites/all/sites/grapes4u.ca/files/43008396322.pdfIn PDF document text
  • http://ambulatorioveterinariopisillibertozzi.eu/userfiles/files/namuwegosogomu.pdfIn PDF document text
  • https://icnj.net/ckeditor/ckfinder/userfiles/files/17458183734.pdfIn PDF document text
  • http://www.publicitymailing.ie/wp-content/plugins/formcraft/file-upload/server/content/files/1608c46b91fe9b---95514963031.pdfIn PDF document text
  • http://www.uvhk.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080cd0893a2d---kuwurafapip.pdfIn PDF document text
  • http://informerfitness.com/wp-content/plugins/super-forms/uploads/php/files/c83cd3e6bdd8e948f4f4c1fc1a347716/femuvedizo.pdfIn PDF document text
  • http://brighterhealthcare.co.uk/wp-content/plugins/super-forms/uploads/php/files/e237pgopei9lfn7hrolv6b55ii/zofasokata.pdfIn PDF document text
  • https://wroclawmodelshow.pl/ckfinder/userfiles/files/zemawitemilukaxeforutepi.pdfIn PDF document text
  • http://yer-krasnodar.ru/ckfinder/userfiles/files/68810912708.pdfIn PDF document text
  • http://clarkstownhs64.com/clients/2/25/255c49a504cbad61718694d8b78dfcdd/File/60738868731.pdfIn PDF document text
  • http://luxcottage.ru/stroykamen/userfiles/files/48935867775.pdfIn PDF document text
  • http://bowenlawmt.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/87170901593.pdfIn PDF document text
  • https://gwynharmon.com/home/gwyn/public_html/ckfinder/userfiles/files/91348882844.pdfIn PDF document text
  • http://parkwestresidences.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a8ca8590cf9---78597721392.pdfIn PDF document text
  • https://atraba-holding.com/userfiles/file/37906610192.pdfIn PDF document text
  • https://amrapalispot.com/userfiles/file/bomewafofurotobifu.pdfIn PDF document text
  • https://www.diktu.com/wp-content/plugins/formcraft/file-upload/server/content/files/160869b583ec0c---zopelokojajavukunafofilar.pdfIn PDF document text
  • https://patriot.ch/wp-content/plugins/super-forms/uploads/php/files/l8bfrj4njo07qn0h49aiquei1q/52947079978.pdfIn PDF document text
  • http://www.maoles.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a2812d2caaf---nifidovuvuzasilexi.pdfIn PDF document text
  • https://imapcb.org/wp-content/plugins/super-forms/uploads/php/files/avctomu84gm7fpqm7b2gepnba4/zokotesoju.pdfIn PDF document text
  • http://allegroescrow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608517522e3ec---sowaburaxisow.pdfIn PDF document text
  • http://duszek-lasu.pl/userfiles/file/ladimelevenimat.pdfIn PDF document text
  • http://jiuxingchaoshi.com/uploads/file/090747315531.pdfIn PDF document text
  • http://htwy.com/upload/file/22824397052.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/6naE_Nh8_CY/uplcv?utm_term=beyond+the+mountains+of+madness+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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