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://huntic.ru/uplcv?utm_term=play+store+latest+app PDF link annotation

  • http://thermogroup.ru/uploads/files/4516336007.pdfIn PDF document text
  • https://drmiamiconnect.com/wp-content/plugins/super-forms/uploads/php/files/480c0c4e04e5a5cb97bff44bbe213952/97709231294.pdfIn PDF document text
  • http://mevlanaasm.com/resimler/files/losebuwemowakuv.pdfIn PDF document text
  • http://blackivy.pl/userfiles/file/81784394031.pdfIn PDF document text
  • http://artio.pl/files/files/7479700631.pdfIn PDF document text
  • https://www.brunosistemi.com/wp-content/plugins/formcraft/file-upload/server/content/files/161480910d823d---99677415675.pdfIn PDF document text
  • http://thegioichuyendong.info/app/webroot/upload/files/kagimoxavutapuzefu.pdfIn PDF document text
  • http://letdentalab.com/img/files/77519438808.pdfIn PDF document text
  • http://seto.cz/uploads/gidiwezenukolekuxubogi.pdfIn PDF document text
  • http://aweibel.com/Photo/file/bifisiwununipakizugu.pdfIn PDF document text
  • http://networkinglikepro.com/ckfinder/userfiles/files/jituvekotagozosikokeju.pdfIn PDF document text
  • http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/16135c4d3ef6a6---88852856888.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/j6g0nn62q5hdtcedut3lr3ai65/dowiwekizadawon.pdfIn PDF document text
  • https://bloc-immo.com/images/geravegaribusukizu.pdfIn PDF document text
  • http://lynxitservices.com/ckfinder/userfiles/files/61353630400.pdfIn PDF document text
  • http://kamennykoberec.eu/editor_uploads/system/files/fujumirexifebofotuloni.pdfIn PDF document text
  • http://centonze-vini.com/userfiles/files/25786543171.pdfIn PDF document text
  • http://stin-verdon.fr/assets/Image/files/92879246580.pdfIn PDF document text
  • http://ccshecea.org/upload/files/14501150698.pdfIn PDF document text
  • http://hamlineparkplaza.com/assets/amund/ckfinder/userfiles/files/52433961846.pdfIn PDF document text
  • https://slotpt2.com/contents/files/xevifivavesotilumuzozi.pdfIn PDF document text
  • http://saigonford3s.com/uploads/2021-09-08/images/files/38211698011.pdfIn PDF document text
  • https://bevillelecomte.ovh/ckfinder/userfiles/files/46683242297.pdfIn PDF document text
  • http://plechotice.sk/tmp/file/puwomazosevowogeranat.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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