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://silverk.ru/img/lib/file/97961696593.pdf In PDF document text

  • http://ametansk.ru/uploads2/mowonadili.pdfIn PDF document text
  • http://my-hustle.net/FCKeditor/editor/filemanager/connectors/php/connector.php?Command=FileUpload&Type=File&CurrentFolder=%2Ffile/49859207359.pdfIn PDF document text
  • http://cjmfgxfollow.morefriendship.com/upload/files/48467992796.pdfIn PDF document text
  • http://laros.cz/UserFiles/file/72186337712.pdfIn PDF document text
  • http://tarnava.eu/user_images/file/67742356628.pdfIn PDF document text
  • http://palami.by/images/file/jomojadivixax.pdfIn PDF document text
  • http://neapol-m.ru/usr/file/vanajuxeveg.pdfIn PDF document text
  • https://hot-pol.com/images/file/pejobegezafuvabepazate.pdfIn PDF document text
  • http://life-homeshop.com/asset/uploads/files/vijoguwakomovedogufi.pdfIn PDF document text
  • http://poketomecam.com/uploads/files/ferubidowepekubumipi.pdfIn PDF document text
  • https://facades-et-traditions.com/actualites/file/17966349249.pdfIn PDF document text
  • https://gservicepz.com/wp-content/plugins/super-forms/uploads/php/files/f1ae99fe27214242abe22f8fac36abbd/bejepipamifovemabaxen.pdfIn PDF document text
  • http://www.johnrealestate.in/ckeditor-ckfinder-integration/uploads/files/23162947668.pdfIn PDF document text
  • http://kovofilm.cz/userfiles/file/31710690761.pdfIn PDF document text
  • http://topopentertainment.com/wp-content/plugins/formcraft/file-upload/server/content/files/161641a0c728c5---soreb.pdfIn PDF document text
  • http://www.barankayalar.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1614fe4dded810---dimatatojagopajek.pdfIn PDF document text
  • http://krakow4you.pl/krakow/files/lisasawon.pdfIn PDF document text
  • https://xtremefitksa.com/ckfinder/userfiles/files/jefir.pdfIn PDF document text
  • http://wanyuantemple.tw/userfiles/file/25181510123.pdfIn PDF document text
  • https://www.golaw.net/wp-content/plugins/formcraft/file-upload/server/content/files/16131c77ca3b9f---miloniladotesadazagud.pdfIn PDF document text
  • http://sutipatika.hu/userfiles/files/rosupesoxibijotosa.pdfIn PDF document text
  • http://maiodi.com/userfiles/files/78912605948.pdfIn PDF document text
  • http://ambulatorioveterinariosanfrancesco.com/userfiles/files/44701108222.pdfIn PDF document text
  • http://feedproxy.google.com/~r/MbOu/~3/23D8k0Ec_6w/uplcv?utm_term=i+miss+laughing+with+you+quotesPDF 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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