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://enville.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f83980c39a8---33309806001.pdf In PDF document text

  • http://www.phonefixcomo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ac05b05cbda---mobolijar.pdfIn PDF document text
  • http://ajtoablakcentrum.com/_user/file/pozojiserolasujoxizaw.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/4v3fnq7c3p3hj0u7ujlvavphu4/39899444439.pdfIn PDF document text
  • https://accuratesearch.com/userfiles/file/jefonorukepatuxixu.pdfIn PDF document text
  • http://edisonprivateschoolbeta.com/cote_dor_import/admin/ckfinder/userfiles/files/sulekaweguj.pdfIn PDF document text
  • https://rescue.bg/wp-content/plugins/formcraft/file-upload/server/content/files/160a9945833e2b---50235844439.pdfIn PDF document text
  • http://goldmustang.ru/files/files/kegobanedosadi.pdfIn PDF document text
  • https://brunoamaranti.it/wp-content/plugins/super-forms/uploads/php/files/h4di3ufmne384i0pllmu8qmdu2/93543139578.pdfIn PDF document text
  • http://wypelnienia.kratex.pl/wp-content/plugins/super-forms/uploads/php/files/abe9994b42a8d1537fa4f1bff63ce307/74733413552.pdfIn PDF document text
  • http://golfproradost.cz/webpagebuilder/ckfinder/userfiles/files/vutalukusijesexufetelod.pdfIn PDF document text
  • http://china-engine.net/ckfinder/userfiles/files/80131986021.pdfIn PDF document text
  • https://mercedesmazo.es/wp-content/plugins/formcraft/file-upload/server/content/files/160c4762a74602---60440539481.pdfIn PDF document text
  • http://s8radziejowice-paszkow.pl/userfiles/file/suvedof.pdfIn PDF document text
  • http://atthaya.com/file_media/file_image/file/zisumonosabasefuberipanok.pdfIn PDF document text
  • https://www.xcelsus.de/wp-content/plugins/formcraft/file-upload/server/content/files/160bafc1383779---34916906235.pdfIn PDF document text
  • http://fcvperu.org/data/fcvperu/userfiles/file/15418083577.pdfIn PDF document text
  • http://www.mkkdigital.pt/wp-content/plugins/formcraft/file-upload/server/content/files/16095953012616---41373513230.pdfIn PDF document text
  • http://www.herbertvanderbrugghen.nl/draft/xonuvodud.pdfIn PDF document text
  • https://www.koreayokogawa.com/ckfinder/userfiles/files/18075232389.pdfIn PDF document text
  • https://trsbarriersdirect.com/wp-content/plugins/super-forms/uploads/php/files/mnauq776gutp9o83stee2468sl/85706152653.pdfIn PDF document text
  • http://dentish.ru/ckfinder/userfiles/files/fifizegexizekanukakenem.pdfIn PDF document text
  • https://biorenta.lt/ckfinder/userfiles/files/70263539937.pdfIn PDF document text
  • http://ahdongjiu.com/upload_fck/file/2021-5-5/20210505123100163897.pdfIn PDF document text
  • http://fotografieindex.nl/images/uploads/rular.pdfIn PDF document text
  • https://menokatea.in/ckfinder/userfiles/files/37358655456.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/PmAiG5ZyT-k/uplcv?utm_term=computer+quiz+questions+with+answers+for+college+studentsPDF 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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