Malicious PDF — malware analysis report

Heuristics 8

• 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 68 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.
• Embedded JS stream low PDF_JS
  PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
• 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://kemxoi.vn/app/webroot/files/images/pages/files/51890877064.pdf In PDF document text

  • https://santa.sg/images/users/00000000/files/66878190332.pdfIn PDF document text
  • https://noithatkuongthinh.com/uploads/files/linuwab.pdfIn PDF document text
  • http://saint-party.com/media/file/xuwisizifuvajemisexisanu.pdfIn PDF document text
  • http://noithatachau.vn/webroot/img/files/91728603158.pdfIn PDF document text
  • http://3suntech.com/UploadFile/file/20210914064712881.pdfIn PDF document text
  • http://cadelupo.it/userfiles/files/65861935682.pdfIn PDF document text
  • https://wholisticvibrations.com/wp-content/plugins/super-forms/uploads/php/files/9a975205ea418ea73d0831de1ffce5b5/womuxojidig.pdfIn PDF document text
  • http://www.hausman.eu/images/wyswig_images/file/levapanaloxude.pdfIn PDF document text
  • https://perleyparish.org/wp-content/plugins/super-forms/uploads/php/files/4833332bbb7b9c28e185eef9f8624296/dinubovoxikov.pdfIn PDF document text
  • http://tunglamgarden.com/images/fck/file/12132093454.pdfIn PDF document text
  • http://odpadykj.cz/UserFiles/File/tatoxakivanevaputabexowe.pdfIn PDF document text
  • http://hugslock.com/app/webroot/img/files/tumovoxagamezexogutu.pdfIn PDF document text
  • https://nexapos.com/upload/files/91836570226.pdfIn PDF document text
  • http://appinaris.net/ckfinder/userfiles/publics/files/fasaridafazogowinuti.pdfIn PDF document text
  • http://weilandensemble.nl/ckfinder/userfiles/files/57521532843.pdfIn PDF document text
  • http://neurooperations.com/ckfinder/userfiles/files/51427294828.pdfIn PDF document text
  • http://aviapartner.biz/js/ckfinder/userfiles/files/62163772354.pdfIn PDF document text
  • http://vtracauto.com/wp-content/plugins/formcraft/file-upload/server/content/files/16132487001b7f---jugosugovu.pdfIn PDF document text
  • https://www.traveltimevipp.com/wp-content/plugins/super-forms/uploads/php/files/c9a4396904ed1a4b4d3c16a52c0abfae/91724909370.pdfIn PDF document text
  • http://bioaec.com/userfiles/files/7042721478.pdfIn PDF document text
  • http://cissi.it/userfiles/files/99776560036.pdfIn PDF document text
  • http://www.homefacelifters.com/wp-content/plugins/super-forms/uploads/php/files/b18718aee0949624f68849adb9be84a6/timodogobesogifosavip.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/ngfLrbzwjls/uplcv?utm_term=tom+and+jerry+2021+full+movie+in+tamilPDF 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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