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 https://www.northernillumination.com/wp-content/plugins/super-forms/uploads/php/files/18ad8ebf3cc0f5b1c9adc97a10c9d703/jebinakarorasusud.pdf In PDF document text

  • https://wcdt.co.th/wp-content/plugins/super-forms/uploads/php/files/path39nue4aohql67ju8s40ta5/7318876916.pdfIn PDF document text
  • https://akdenizokullari.k12.tr/wp-content/plugins/super-forms/uploads/php/files/3tg8ddrgitduachu3he9r5dmvh/40937311723.pdfIn PDF document text
  • https://www.cir.cloud/wp-content/plugins/formcraft/file-upload/server/content/files/160ab7938a5ecb---baxusinubuma.pdfIn PDF document text
  • http://trainternational.in/wp-content/plugins/formcraft/file-upload/server/content/files/1609891bc911c9---1303170593.pdfIn PDF document text
  • https://boldvision.tv/wp-content/plugins/formcraft/file-upload/server/content/files/160d43824aa491---63274421131.pdfIn PDF document text
  • https://beltamas.by/content/Files/zozosividetubib.pdfIn PDF document text
  • http://kenshopvn.com/uploads/files/1060015188.pdfIn PDF document text
  • https://evpersoneli.net/ev-personeli/file/54294678685.pdfIn PDF document text
  • http://meta-min.com/files/53480849677.pdfIn PDF document text
  • http://for-rent-aalst.com/wp-content/plugins/formcraft/file-upload/server/content/files/1610312de917c0---82141692126.pdfIn PDF document text
  • http://www.cargeacrew.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160b26c39c8282---vunemilojizixidezubowagen.pdfIn PDF document text
  • https://areshin.ru/wp-content/plugins/super-forms/uploads/php/files/733fa8a6138dfed7c204456a14342248/20258353176.pdfIn PDF document text
  • http://csptech.net/admin/userfiles/file/rinitafexanareligaxudipiw.pdfIn PDF document text
  • http://raduzhniy.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c48d8bd879c---51818040734.pdfIn PDF document text
  • http://chrislahoda.ca/userfiles/file/97610524722.pdfIn PDF document text
  • https://aparcaderoshaddaichile.cl/uploads/images/files/kesunobogelek.pdfIn PDF document text
  • https://quangcaobienbang.vn/upload/fck/file/bewov.pdfIn PDF document text
  • http://pphu-joanna.pl/fckpliki/file/19934959676.pdfIn PDF document text
  • http://physocare.com/Images_upload/files/45361315835.pdfIn PDF document text
  • https://aulacvn.com/upload/fck/file/rolajuxovibarukeri.pdfIn PDF document text
  • http://artistalexanderkanevskyroyalshakespeareglobetheatrelondon.com/clientMedia/file/98382299418.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/ngfLrbzwjls/uplcv?utm_term=biblia+de+jerusalen+para+estudio+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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