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
• 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.
• QR-code redirect lure medium SE_QR_LURE
  Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
• 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://smidgel.ru/uplcv?utm_term=pcl+to+pdf+online PDF link annotation

  • https://plentis.eu/ckfinder/userfiles/files/dudadepepi.pdfIn PDF document text
  • https://beaumont-residence.com/wp-content/plugins/super-forms/uploads/php/files/8jj2geluramngbg2s3pfsjittm/popeboxuwixew.pdfIn PDF document text
  • http://outspokenholland.com/userfiles/fckFile/20210721074506.pdfIn PDF document text
  • https://assignmentmart.com/ckfinder/userfiles/files/19369218897.pdfIn PDF document text
  • http://bilagroup.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c02dc1080e8---roxemukupin.pdfIn PDF document text
  • http://sewakendragroup.com/userfiles/file/66245656240.pdfIn PDF document text
  • http://eske.hu/wp-content/plugins/formcraft/file-upload/server/content/files/160be79aa8138b---7451566299.pdfIn PDF document text
  • http://3xlove.com/uploadfile/file/tawudurevizopotanuzazula.pdfIn PDF document text
  • http://boxethai38.com/upload/file/xibupaxuzijodinejane.pdfIn PDF document text
  • https://pelicanfinancialnetwork.com/ckfinder/userfiles/files/vazodipabogu.pdfIn PDF document text
  • https://howardsteeves.com/wp-content/plugins/super-forms/uploads/php/files/c101436999a532d85f76ec6c196fff4f/32457346360.pdfIn PDF document text
  • http://drivingschool-brno.eu/files/30699647146.pdfIn PDF document text
  • https://rmdschoolandcollege.com/wp-content/plugins/super-forms/uploads/php/files/agkrcln3rf4c2old52equua1k4/12691156227.pdfIn PDF document text
  • http://timelessmebel.ru/wp-content/plugins/super-forms/uploads/php/files/c94bdd4486aa7ce508fa2f1c513eb2de/bagivogetupixusil.pdfIn PDF document text
  • http://clearlakesd.org/wp-content/plugins/formcraft/file-upload/server/content/files/16119c934c48a3---gegonitozakewo.pdfIn PDF document text
  • http://didula.ru/img/file/40272141087.pdfIn PDF document text
  • http://studioarchoggianiepartners.it/userfiles/files/kozuxevefur.pdfIn PDF document text
  • http://ambulatorioveterinariopisillibertozzi.eu/userfiles/files/9880553058.pdfIn PDF document text
  • https://abril.pe/wp-content/plugins/super-forms/uploads/php/files/132eau788nt631snh1p7v4mut2/dakuxaretad.pdfIn PDF document text
  • https://cissud.eu/uploads/ck_editor/files/22401335658.pdfIn PDF document text
  • http://ithaca1960.com/clients/8/87/874e400c25abfb160fd1c0cf9913fcd0/File/ketolokopofijumanikipil.pdfIn PDF document text
  • http://elitvorota.ru/f/file/melarabusazix.pdfIn PDF document text
  • https://singaporenotarypublic.com/wp-content/plugins/super-forms/uploads/php/files/353dfb39bbb6c01cacee589ffaba5540/15918215240.pdfIn PDF document text
  • https://likeevent.it/writable/public/userfiles/file/19586787168.pdfIn PDF document text
  • https://cafepiolho.com/uploads/assets/fuwidofifutotopikuralug.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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