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://pixomot.ru/uplcv?utm_term=poe+winds+of+change PDF link annotation

  • http://www.chinahkcarplate.com/wp-content/plugins/formcraft/file-upload/server/content/files/16146443eeb012---wuwowajubede.pdfIn PDF document text
  • http://kangmeideyiliao.com/uploadfile/file///2021090623051199.pdfIn PDF document text
  • http://kimhoatra.com/upload/fckimagesfile/bafemo.pdfIn PDF document text
  • http://anhuifan.com/upload_fck/file/2021-9-7/20210907090610110897.pdfIn PDF document text
  • https://majubesar.org/contents/files/dudamakavobadonezepijoja.pdfIn PDF document text
  • https://culturasiapamplona.com/guiarte_userfiles/files/35096424229.pdfIn PDF document text
  • http://lucidarepavimentimarmogenovaealessandria.it/userfiles/files/63124271405.pdfIn PDF document text
  • https://oilbasaro.com/web/images/ckfinder/files/20210905041218.pdfIn PDF document text
  • http://debnine.net/UserFiles/File/mixajalipek.pdfIn PDF document text
  • http://mexxeopaint.com/upload/files/70413099099.pdfIn PDF document text
  • http://henzefashion.com/userfiles/file/18297231808.pdfIn PDF document text
  • http://phdpecs.hu/userfiles/files/20045729029.pdfIn PDF document text
  • http://highspiritsmusic.com/ckfinder/userfiles/files/56697356054.pdfIn PDF document text
  • http://unsersohn.ch/images/file/85762881332.pdfIn PDF document text
  • http://vertracapital.com/uploads/files/44453971080.pdfIn PDF document text
  • http://stickerbarcode.com/file_media/file_image/file/23153935424.pdfIn PDF document text
  • http://caacoding.net/wp-content/plugins/formcraft/file-upload/server/content/files/161495af745ec6---dojenomojamivorumidib.pdfIn PDF document text
  • http://thelifelesson.net/home/tappingchanges/public_html/dowalumniusa/ckfinder/userfiles/files/40860186822.pdfIn PDF document text
  • https://shrmivirtual.org/wp-content/plugins/super-forms/uploads/php/files/b430f59ed4201e0adb596bce57b8201f/jidowajipofabawewivewuke.pdfIn PDF document text
  • http://sallytour.com/FileData/ckfinder/files/20210921_C85FAA77D2CD332B.pdfIn PDF document text
  • https://telechips.com/ckfinder/userfiles/files/safufomisobote.pdfIn PDF document text
  • http://brenno-tojestto.pl/userfiles/file/xisosifara.pdfIn PDF document text
  • 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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