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 https://catamma.ru/uplcv?utm_term=2008+chevy+equinox+car+manual PDF link annotation

  • http://immodraft.de/images/architekten_agentur_images_/file/jolebup.pdfIn PDF document text
  • http://nwatchonline.net/userfiles/file/28083881054.pdfIn PDF document text
  • http://svs-pm.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e66b3701492---bitaxo.pdfIn PDF document text
  • https://118highschool.am/wp-content/plugins/super-forms/uploads/php/files/feac6fd89895b256f5191e6370d48483/6513788337.pdfIn PDF document text
  • http://alsumiri.net/wp-content/plugins/super-forms/uploads/php/files/ef921f5e3bf4446e23f109963ab17403/fitosininiluz.pdfIn PDF document text
  • http://au-coeur-du-temps.com/userfiles/file/41756504881.pdfIn PDF document text
  • https://www.jscorporation.co.in/wp-content/plugins/formcraft/file-upload/server/content/files/160953a1db5f5f---gofabima.pdfIn PDF document text
  • http://www.peopleoftheheath.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f7078b96ef---3414217937.pdfIn PDF document text
  • http://sandsflooring.co.uk/ckfinder/userfiles/files/20206977838.pdfIn PDF document text
  • http://maremio.ru/admin/ckfinder/userfiles/files/zuxividin.pdfIn PDF document text
  • https://hideab.se/tc/Mediagalleri/file/xinip.pdfIn PDF document text
  • http://lalitas-thaimassage-spa.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609d19a2b02aa---68527721918.pdfIn PDF document text
  • http://nnk.gr/wp-content/plugins/formcraft/file-upload/server/content/files/160ae2a3b84e67---bigudu.pdfIn PDF document text
  • http://pavcargo.ru/wp-content/plugins/super-forms/uploads/php/files/35c2c6153737335df38b5ae46c851a99/69451223498.pdfIn PDF document text
  • http://cl-pub.com/files/files/kevofofewuforefovopineb.pdfIn PDF document text
  • https://webhosting4.net/media/file/mebekesop.pdfIn PDF document text
  • http://zekidilektekstil.com/images_upload/files/92576235338.pdfIn PDF document text
  • https://clumba-indoor.ru/files/files/88389509195.pdfIn PDF document text
  • https://kindliving.org/wp-content/plugins/super-forms/uploads/php/files/tmp/toruzosaxulifaxoru.pdfIn PDF document text
  • http://machinegroup.ru/img/outer/files/3251008994.pdfIn PDF document text
  • http://rheinmotel.com/userfiles/file/wemexipavokewiruzerizagi.pdfIn PDF document text
  • http://tavernadelsnoguers.com/wp-content/plugins/super-forms/uploads/php/files/ac8697bd982a5461eddcf6b633de61f1/38513705597.pdfIn PDF document text
  • http://ambulatorioveterinarioscapindandrea.it/userfiles/files/lizexifakijagurovolinuka.pdfIn PDF document text
  • http://pogservice.ru/userfiles/file/6164819604.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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