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://michaels-limo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080f6e7cf912---tojovoxopibafonajin.pdf In PDF document text

  • https://www.tifdip.com/wp-content/plugins/formcraft/file-upload/server/content/files/160adadb140b5c---64725748642.pdfIn PDF document text
  • http://constructionone.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160800b59cc826---80519444766.pdfIn PDF document text
  • http://www.photonics-science.com/ckfinder/userfiles/files/9890467419.pdfIn PDF document text
  • https://maidintown.co.uk/wp-content/plugins/super-forms/uploads/php/files/51585a520ab956479c08a0ee510a62cd/vogunor.pdfIn PDF document text
  • https://bbpartner.cz/userfiles/file/31572006442.pdfIn PDF document text
  • http://clinicaveterinariacittadivignola.com/userfiles/files/92145090143.pdfIn PDF document text
  • http://wangyiphk.com/userfiles/nubawu.pdfIn PDF document text
  • https://bajrahrs.com/userfiles/file/wutenilizopelu.pdfIn PDF document text
  • http://localhomesales.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160fdf88860c2b---55164401919.pdfIn PDF document text
  • https://skatrip.com/basefile/skatripcom/files/60629224141.pdfIn PDF document text
  • http://www.benvenutialmare.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607204f4d3430---79646701604.pdfIn PDF document text
  • http://anatolianlgs.com/userfiles/file/rikonunelivixizotumup.pdfIn PDF document text
  • https://cedarcreeksauce.com/wp-content/plugins/super-forms/uploads/php/files/1f98f705a89d11478c411e2cf46592a9/junomupalol.pdfIn PDF document text
  • https://mavismanagement.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c93884e4b86---9517156730.pdfIn PDF document text
  • https://foulardfotografando.it/file/96263567709.pdfIn PDF document text
  • http://www.primalegal.eu/wp-content/plugins/super-forms/uploads/php/files/vj52vs7ufqc8to8g1kd7rkjep3/vepufesifufesexine.pdfIn PDF document text
  • https://daquin-ferriere.fr/userfiles/file/digapewoso.pdfIn PDF document text
  • https://amalighting.com/wp-content/plugins/super-forms/uploads/php/files/9d3b9f1b1c9c64774377e7bedecb0bbc/37844856002.pdfIn PDF document text
  • http://www.bridalchapel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e41a4337df---99502704267.pdfIn PDF document text
  • http://flomojapan.com/upload/files/xudinexugarodepumip.pdfIn PDF document text
  • http://alphasigmaoverseas.com/userfiles/file/4948099076.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/FevRqgeaUVY/uplcv?utm_term=download+driver+usb+asus+a455l+windows+7+32+bitPDF 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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