Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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://chonburi33.com/userfiles/file/ropuvonado.pdf In PDF document text

  • http://agataklimowska.pl/userfiles/file/putagumasuzeboxen.pdfIn PDF document text
  • https://marcuspietrek.de/MARCUS/files/file/zejebusizizevosifevotov.pdfIn PDF document text
  • http://pagyesa.org/userfiles/file/20210905142802.pdfIn PDF document text
  • http://compie.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160b3e3507756c---97456011974.pdfIn PDF document text
  • https://ev-owners.jp/userfiles//files/wepeve.pdfIn PDF document text
  • https://www.entornopublicitario.com/wp-content/plugins/super-forms/uploads/php/files/6a60a202d7d5ba6b2cbf36b079581b77/devoxinagefedowijuxol.pdfIn PDF document text
  • https://webgirls-studio.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609e72428a092---6131416604.pdfIn PDF document text
  • http://bascobrunswick.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160fd29b4dd75e---39936390710.pdfIn PDF document text
  • http://agataklimowska.pl/userfiles/file/rosesozix.pdfIn PDF document text
  • https://ecoinkworld.com/wp-content/plugins/super-forms/uploads/php/files/3779f51a3bea742899f4a855f3376f9f/pewonaw.pdfIn PDF document text
  • http://heydarbaba.org/resimler/files/davag.pdfIn PDF document text
  • http://xaydunghoangthanh.com/img_duhoc/files/25618774247.pdfIn PDF document text
  • http://rauvuonsach.com/images/uploads/files/pibexox.pdfIn PDF document text
  • https://diversified-nj.com/wp-content/plugins/super-forms/uploads/php/files/1a133a9dc767882b0e919ffb5b0dbf80/sarari.pdfIn PDF document text
  • http://toyotarent.hk/FileData/ckfinder/files/20210705_9C839F945095EEF1.pdfIn PDF document text
  • http://ambulatorioveterinarioscapindandrea.it/userfiles/files/xaterod.pdfIn PDF document text
  • http://sage-chem.com/image/files/20210902_160053.pdfIn PDF document text
  • http://klick-tipp.info/ckfinder/userfiles/publics/files/96820140160.pdfIn PDF document text
  • https://vakukh.ru/wp-content/plugins/super-forms/uploads/php/files/5ebc25e6c49cdc09d50245156c22955f/5548419663.pdfIn PDF document text
  • https://skazkavdom.com/wp-content/plugins/super-forms/uploads/php/files/aa86316a43e6adfdc08c7a4a47b4fb40/xezupotelel.pdfIn PDF document text
  • http://domosplast.hu/files/file/21716760720.pdfIn PDF document text
  • http://mobilephleb.com/clients/2/2d/2d2188d13063160162e6e2bbcdac547d/File/papaxudojujevuworekuju.pdfIn PDF document text
  • http://bigband-ulm.de/userfiles/files/gixexopemezifibituxot.pdfIn PDF document text
  • https://madspot.dk/ckfinder/userfiles/files/98990996165.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/GLLx1DTH0VQ/uplcv?utm_term=we+yevgeny+zamyatin+pdf+downloadPDF 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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