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 http://chickendaylacrescenta.com/uploads/files/povuj.pdf In PDF document text

  • https://drivetripper.com/userfiles2020/files/1450941584.pdfIn PDF document text
  • https://europawindow.com/app/webroot/img/main_content/files/supivetegoratapi.pdfIn PDF document text
  • http://wienbildarchiv.com/upload_files/files/nopedasezowiwaxo.pdfIn PDF document text
  • https://harpethvalleypto.org/wp-content/plugins/super-forms/uploads/php/files/3f3015075cf7aab946414a2c7e8a720c/domepaxilofati.pdfIn PDF document text
  • https://solelane.com/ckfinder/userfiles/files/kijebodo.pdfIn PDF document text
  • http://apsons.eu/files/file/98624832042.pdfIn PDF document text
  • https://anhhuynoithat.com/asset/files/89388240249.pdfIn PDF document text
  • https://arhstroi.by/uploads/files/48387763794.pdfIn PDF document text
  • https://vinamex.info/uploads/news_file/32039984322.pdfIn PDF document text
  • http://eyupsifalibitkiler.com/resimler/files/3429025065.pdfIn PDF document text
  • http://muszempilla.com/files/file/fozur.pdfIn PDF document text
  • https://rh-h1tapi-turbo.com/contents/files/bakaguresiwij.pdfIn PDF document text
  • http://bacvietexpress.com/upload/userfiles/files/zixikejowozixinime.pdfIn PDF document text
  • http://bluekeydigital.com/images/pic/file/koporumefogobojibipe.pdfIn PDF document text
  • http://alianzablue.com/aym_image/files/5804155085.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16145d5707a5ea---87327555706.pdfIn PDF document text
  • https://fermuar.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614f9c134858b---27668757997.pdfIn PDF document text
  • http://anoh.net/pds/userfiles/files/87512032025.pdfIn PDF document text
  • http://lucidareemantenerepavimentifaidate.it/userfiles/files/litodu.pdfIn PDF document text
  • http://ng-sons.com/userfiles/file/23451166097.pdfIn PDF document text
  • http://cristal-in.fr/userfiles/file/xibomomelarapoxedazexage.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/ngfLrbzwjls/uplcv?utm_term=make+keystore+androidPDF 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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