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 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.
• Embedded JS stream low PDF_JS
  PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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://archism.ru/uplcv?utm_term=edexcel+gcse+physics+student+book+answers PDF link annotation

  • http://arserwood.com/js/fckeditor/editor/filemanager/connectors/php/connector.php/upfiles/file/210505224042988748g6l8hi.pdfIn PDF document text
  • https://diversified-nj.com/wp-content/plugins/super-forms/uploads/php/files/505da8aa6409694c707f755caa8dfb3d/12412687275.pdfIn PDF document text
  • http://brandnewgoods.net/userfiles/file/71743522196.pdfIn PDF document text
  • https://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/160b00b8b05f9e---dobugu.pdfIn PDF document text
  • http://terezmisszio.eu/files/file/37533983637.pdfIn PDF document text
  • http://immodraft.nrw/images/architekten_agentur_images_/file/nilimoz.pdfIn PDF document text
  • https://masterok-kovka.ru/wp-content/plugins/super-forms/uploads/php/files/e0b58ea61f452e80257dc991c0b00343/21375526966.pdfIn PDF document text
  • https://laughteronlineuniversity.com/images/upload/files/vusibinonezamowexufivor.pdfIn PDF document text
  • http://kasargod.net/uploads/file/lexiru.pdfIn PDF document text
  • http://themultifold.com/wp-content/plugins/super-forms/uploads/php/files/272mru7ehedkepmeis4oii2ps7/pimepuwez.pdfIn PDF document text
  • http://raunlarose.us/wp-content/plugins/formcraft/file-upload/server/content/files/16084304ba1a72---fezaravereludude.pdfIn PDF document text
  • http://maszyny.pl/userfiles/file/14004468693.pdfIn PDF document text
  • http://ckrestaurantgroup.com/ckfinder/userfiles/files/4949961457.pdfIn PDF document text
  • https://www.auditek.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160e55cc1bdd5a---15441166132.pdfIn PDF document text
  • https://cbolean.com/wp-content/plugins/super-forms/uploads/php/files/63n3j6gqdf9sbfn3psrge9q3i0/82588921833.pdfIn PDF document text
  • https://la-klamm.org/userfiles/file/68254010106.pdfIn PDF document text
  • http://chiangmaicharmingtravel.com/ckfinder/userfiles/files/xinadagujama.pdfIn PDF document text
  • http://www.prodomasa.com/ckfinder/userfiles/files/56537180170.pdfIn PDF document text
  • http://www.trimbleexpress.sk/wp-content/plugins/formcraft/file-upload/server/content/files/160c8e8be9a27e---xavudubofesefaluvo.pdfIn PDF document text
  • https://www.wflorlando.com/wp-content/plugins/super-forms/uploads/php/files/51cdba48413044cb9a84dbbc27d2d0c7/25918754355.pdfIn PDF document text
  • https://bbpartner.cz/userfiles/file/soxev.pdfIn PDF document text
  • https://www.diktu.com/wp-content/plugins/formcraft/file-upload/server/content/files/16081dfe7040a9---debasilawete.pdfIn PDF document text
  • https://mfdesign.hu/files/file/widunixuxekumavokuparavaw.pdfIn PDF document text
  • http://compufoxmail.com/userfiles/file/morolizilobapepap.pdfIn PDF document text
  • http://foto-klub.dk/userfiles/file/60105162384.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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