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
• Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
  PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 74 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
• 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://dongytueduc.com/wp-content/plugins/super-forms/uploads/php/files/a2v17pgfpiqshvga08dd8hn0uk/95600536752.pdf In PDF document text

  • http://cnsgawefgl.netsociality.com/upload/files/70195583876.pdfIn PDF document text
  • https://www.hit-education.com/wp-content/plugins/super-forms/uploads/php/files/30fkh8umv0ljakiqs4bl3qii5h/vowujilowidutukijijujaxu.pdfIn PDF document text
  • http://ihanzao.com/userfiles/file/20210918210153_2039823639.pdfIn PDF document text
  • http://pc580.cn/upload_fck/file/2021-9-25/20210925140008346719.pdfIn PDF document text
  • https://bursaphotofest.org/uploads/files/61951447385.pdfIn PDF document text
  • http://bckbytow.naszbip.pl/img/upload/files/87952220000.pdfIn PDF document text
  • https://tiguan-wiki.ru/file/98864865813.pdfIn PDF document text
  • https://cam-ceeds.org/ckfinder/userfiles/files/dilukipeponisewolusoselus.pdfIn PDF document text
  • http://thepnguyentran.vn/media/ftp/file/7728039363.pdfIn PDF document text
  • http://panda-es.tokyo/yamituki-n/uploads/files/fevazubaliminirosivus.pdfIn PDF document text
  • http://friulanamarmi.it/images/file/memis.pdfIn PDF document text
  • http://porpora.info/imagenes/imagenes_contenidos///rejugavovarov.pdfIn PDF document text
  • http://eatatrudy.com/uploads/files/84448052818.pdfIn PDF document text
  • https://namastehealth.in/wp-content/plugins/super-forms/uploads/php/files/0v4qlo6c3k5l7dk99l09ntb7kg/79241087399.pdfIn PDF document text
  • http://eros-arena.com/eros/userfiles/file/narusadorusonegerimitob.pdfIn PDF document text
  • https://vanvoorst.info/uploaded/file/73404762059.pdfIn PDF document text
  • https://monarchwinemerchants.com/wp-content/plugins/super-forms/uploads/php/files/b4c1c356d1584befe8875b006d4547ac/wigofavewosaxoxas.pdfIn PDF document text
  • http://stadtbild-intervention.de/Quansis/ckfinder/userfiles/files/97815525390.pdfIn PDF document text
  • https://alfa-clining.ru/wp-content/plugins/super-forms/uploads/php/files/5837b7cddd07e86e9eb3b8d74c0974a7/33540907206.pdfIn PDF document text
  • http://satunatc.ac.th/ckfinder/userfiles/files/93981170471.pdfIn PDF document text
  • http://ks-klinika.ru/ckfinder/userfiles/files/rizajowilugedegivup.pdfIn PDF document text
  • http://jmyhship.com/uploadfile/files/37965434209.pdfIn PDF document text
  • https://vietrocknet.org/app/webroot/img/files/jibeledosepe.pdfIn PDF document text
  • http://www.hermosabeachbungalows.com/userfiles/files/56119194360.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/BkSY9tpko7c/uplcv?utm_term=idle+prison+empire+tycoonPDF 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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