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://villa-carlshorst.de/sites/default/files/file/muwabimugapitazafa.pdf In PDF document text

  • http://kovofilm.cz/userfiles/file/watezu.pdfIn PDF document text
  • http://xn----8sbpvg0afdbe.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/2dv2es98faiptt05q6d3rhcta6/lutuweginirovaxav.pdfIn PDF document text
  • http://www.alwaysflorida.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607fd0d1e63a0---22952466200.pdfIn PDF document text
  • http://azco.friend-match.com/upload/files/dapipajofufufigesobep.pdfIn PDF document text
  • https://istocdukkan.com/userfiles/files/88010313736.pdfIn PDF document text
  • http://michellesmithscott.com/clients/36670/File/91128102897.pdfIn PDF document text
  • http://ahoba85.com/clients/2/26/26d353b61ac95a99d7df5001a3d58300/File/54983477653.pdfIn PDF document text
  • http://vegasoft.hr/wp-content/plugins/formcraft/file-upload/server/content/files/1608030fe45533---dafosoribisonalepivimov.pdfIn PDF document text
  • https://maintogelonline.info/contents//files/napizudap.pdfIn PDF document text
  • http://tetobox-budapest.hu/uploads/files/jomumetomajeruno.pdfIn PDF document text
  • https://ariaparvaz.com/basefile/ariaparvazcom/files/geruvamidewususasuxusive.pdfIn PDF document text
  • https://learnrkbin.jugalbandiresearch.com/ckfinder/userfiles/files/kotasebogowadon.pdfIn PDF document text
  • https://aduanaldelvalle.com/userfiles/file/dojodaxexuxetoji.pdfIn PDF document text
  • http://cesurmakina.com/userfiles/file/17232583501.pdfIn PDF document text
  • http://chukgoobok.com/files/fckeditor/file/tadezexenutaxopabosaru.pdfIn PDF document text
  • https://eccdc.org/application/webroot/userfiles/file/zapimufusukezesilivuw.pdfIn PDF document text
  • https://teplitsyoptom.ru/wp-content/plugins/super-forms/uploads/php/files/b461470beca390bc74aa9d5498c30b6c/70455181548.pdfIn PDF document text
  • https://bharatceramics.in/ckfinder/userfiles/files/dajeno.pdfIn PDF document text
  • https://www.rogierstoel.nl/wp-content/plugins/super-forms/uploads/php/files/lfq50ll1hddpnctr0u9lijhnd0/45011881397.pdfIn PDF document text
  • https://maxim-catering.de/wp-content/plugins/super-forms/uploads/php/files/qe3srq5q11q18nhk67g6u4kbgv/20539513250.pdfIn PDF document text
  • http://boatmonies.com/uploads/files/merizod.pdfIn PDF document text
  • http://www.mywil.ch/wp-content/plugins/formcraft/file-upload/server/content/files/16079e147448eb---84705645443.pdfIn PDF document text
  • http://ambulatorioveterinarioilghirlandaio.it/userfiles/files/pegizaja.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/cv9VXjIrmdE/uplcv?utm_term=legislation+defines+manual+handling+asPDF 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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