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 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.
• Callback phishing phone lure medium SE_CALLBACK_LURE
  Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
• 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://vcvscr.cz/www/www/fckphotos/file/81861359638.pdf In PDF document text

  • https://accessnepal.org/userfiles/file/gajobakun.pdfIn PDF document text
  • http://gzhangqin.com/uploadfile/files/zalunipidasakorof.pdfIn PDF document text
  • http://edilcfcostruzioni.com/userfiles/files/ropufodevowufesofeber.pdfIn PDF document text
  • http://anhbanglaw.com/userfiles/file/6251467049.pdfIn PDF document text
  • https://asiatravel.kg/wp-content/plugins/super-forms/uploads/php/files/ac4c918126c977cbadfe4fb4d4ee07af/mutilevurip.pdfIn PDF document text
  • https://coastalholidayproperty.com/ckfinder/userfiles/files/85267599991.pdfIn PDF document text
  • https://thaiwoodengames.com/files/upload/files/rulabutopevosozojalatog.pdfIn PDF document text
  • http://holidayservicemarsala.it/userfiles/files/18645967559.pdfIn PDF document text
  • http://teamhead.net/userfiles/file/2413033116.pdfIn PDF document text
  • http://pjteam.hu/uploads/20249495656.pdfIn PDF document text
  • https://winpoasia.com/ckfinder/userfiles/files/topupadizalazogilimul.pdfIn PDF document text
  • http://abwninemile.com/uploads/files/vefodereraza.pdfIn PDF document text
  • http://mastervin.ru/files/file/towilak.pdfIn PDF document text
  • http://marcobernini.it/userfiles/files/6367317891.pdfIn PDF document text
  • https://wtmasonry.com/ckfinder/userfiles/files/zagedegux.pdfIn PDF document text
  • https://cardolf.ro/files/25879597800.pdfIn PDF document text
  • http://antik-cafe-bergen.de/wp-content/plugins/formcraft/file-upload/server/content/files/16141b554c5815---6670250709.pdfIn PDF document text
  • http://wwm-quanta.com/upload/files/dalonesux.pdfIn PDF document text
  • http://tjtvina.com/Upload/files/78343992908.pdfIn PDF document text
  • http://uniondeautoescuelas.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613f19e046633---80575575264.pdfIn PDF document text
  • https://www.champagne-auge-dascier.com/ckfinder/userfiles/files/taxotuxaraxugibuvifa.pdfIn PDF document text
  • http://sanarina-coaching.de/ckfinder/userfiles/files/jezezob.pdfIn PDF document text
  • http://ambulatorioveterinariopisillibertozzi.eu/userfiles/files/nobonivewoxex.pdfIn PDF document text
  • http://www.alfainstal.pl/wp-content/plugins/formcraft/file-upload/server/content/files/16132c9f8a1ab6---ledelokisevubejakunuxi.pdfIn PDF document text
  • http://kystop.com/wp-content/plugins/super-forms/uploads/php/files/542ca7e53bf131b656b463b34a6e93e5/wabukanelinoku.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/FevRqgeaUVY/uplcv?utm_term=custom+rom+listPDF link annotation
  • http://alessandrotria.altervista.org/areap/ckfinder/userfiles/files/45684472396.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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