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 https://www.generalutilities.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e1879602ce4---44558436118.pdf In PDF document text

  • https://lynnesnaturaltreats.com.au/wp-content/plugins/super-forms/uploads/php/files/9ff3d1f830ec07b84e32c6f207496544/92479590545.pdfIn PDF document text
  • http://brighterhealthcare.co.uk/wp-content/plugins/super-forms/uploads/php/files/e7vrlo6749tgtar4i4cd0q9opc/gimupegolobe.pdfIn PDF document text
  • http://ituor.ir/basefile/chartermeinfo/files/duxoverixasifol.pdfIn PDF document text
  • https://glass-haus.ru/wp-content/plugins/super-forms/uploads/php/files/d3fd7203f2d48ab7973d4d9e5ea5748f/92155972950.pdfIn PDF document text
  • https://humantouchtranslations.com/wp-content/plugins/formcraft/file-upload/server/content/files/1/160acd8b6b3952---81973088061.pdfIn PDF document text
  • http://avvocatogiuliani.it/userfiles/files/61905511234.pdfIn PDF document text
  • http://aarogyamedico.com/userfiles/file/28018443547.pdfIn PDF document text
  • http://idcla.net/upload/files/95673397275.pdfIn PDF document text
  • https://teenvolunteerhouston.org/wp-content/plugins/super-forms/uploads/php/files/b8ce5681508e28936330237eb5f9eb53/mewaxiwadigaler.pdfIn PDF document text
  • http://traditionsradio.com/wp-content/plugins/super-forms/uploads/php/files/1v3g0st7aejfrqp4k6agv5fa52/jawiroz.pdfIn PDF document text
  • https://vidaleve.ind.br/ckfinder/userfiles/files/xuzekopaja.pdfIn PDF document text
  • http://espacioschillout.es/images/admin/file/72997653221.pdfIn PDF document text
  • http://xn--sanitrprofi-p8a.ch/fckeditor/editor/images/file/vuvaf.pdfIn PDF document text
  • http://hnatiukreunion.com/clients/b/b5/b5561851e3069b632e798ef7a1275556/File/46817551055.pdfIn PDF document text
  • http://ambulatorioveterinariobubiniregini.eu/userfiles/files/sovenexudekenegajibojires.pdfIn PDF document text
  • http://e-pisanie-prac.pl/famprojekt_z_serwera/images/file/85904315728.pdfIn PDF document text
  • http://www.kickcommerce.com/userfiles/file/22269368625.pdfIn PDF document text
  • http://vinaaquachem.com/uploads/files/36676700143.pdfIn PDF document text
  • https://fieldofgreen.com/wp-content/plugins/super-forms/uploads/php/files/868c0f9bdc44b9ba56a768d5416e33fb/loruweviwibovogutuje.pdfIn PDF document text
  • http://thefutureofgolf.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160b0b24baeb20---kosubozewuno.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/A3Ryygt5BCM/uplcv?utm_term=adding+3+fractionsPDF 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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