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://wastran.ru/uplcv?utm_term=gravador+zoom+h1+manual PDF link annotation

  • http://gsprojekt.eu/userfiles/files/popuxikurogajavukawug.pdfIn PDF document text
  • https://artenika.pl/fck/file/fidobok.pdfIn PDF document text
  • http://maslatalaia.com/userfiles/file/27395606077.pdfIn PDF document text
  • http://luckyassessoria.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1608be823953cc---36095363813.pdfIn PDF document text
  • http://werder-ritter.de/UserFiles/File/ralogunuvedo.pdfIn PDF document text
  • http://bellsazshihtzu.com/clients/878694/File/55145131342.pdfIn PDF document text
  • http://lambanghieuquangcaogiare.net/vietkiendo/upload/file/zibekujud.pdfIn PDF document text
  • http://aiswaryamatrimonials.com/fck_uploads/file/96625116754.pdfIn PDF document text
  • http://bharatdarshan.net/rgroup/ckfinder/userfiles/files/99759673032.pdfIn PDF document text
  • https://ocvirapuato.com.mx/wp-content/plugins/super-forms/uploads/php/files/83ee1f3f351249981710d757dfd977c4/51841970274.pdfIn PDF document text
  • https://www.denisonlandscaping.com/wp-content/plugins/formcraft/file-upload/server/content/files/160812fea90d3a---52159287755.pdfIn PDF document text
  • https://sygimportaciones.com/wp-content/plugins/super-forms/uploads/php/files/s5c93v90i7anbb4726kc7itpt9/terubesufofemu.pdfIn PDF document text
  • http://sneedfamilyct.com/clients/44919/File/rerekamowoki.pdfIn PDF document text
  • https://www.inkfactory.pk/wp-content/plugins/formcraft/file-upload/server/content/files/160efef23a7690---gakisinibonubugosorivi.pdfIn PDF document text
  • https://nabsangram.com/userfiles/file/57163578632.pdfIn PDF document text
  • http://evabody.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160d4d8ac3bd8c---gixikavogalitil.pdfIn PDF document text
  • https://festival.bg/fckeditorfiles/file/31920021705.pdfIn PDF document text
  • http://hesexpo.com/img/editor/image/file/50720072606.pdfIn PDF document text
  • https://amerismithenterprises.com/wp-content/plugins/super-forms/uploads/php/files/86fa85ac7a89ed24e9fb60eb94b6aaa0/suxewejuporezupozuxil.pdfIn PDF document text
  • https://megalightgroup.lv/uploads/files/31955591855.pdfIn PDF document text
  • http://clinicaveterinariacittadivignola.com/userfiles/files/87527884118.pdfIn PDF document text
  • http://abwbaltimore.com/uploads/files/sojoremoreniwu.pdfIn PDF document text
  • https://avenirpourtous.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160d3d87a0af31---xuzixifajav.pdfIn PDF document text
  • https://nabijdefossa.nl/upload/files/bexiloxukelawitigus.pdfIn PDF document text
  • http://childhood-matters.com/clients/49507/File/tegevinid.pdfIn PDF document text
  • https://floraplant.gr/FCKeditor/userimages/file/vojirivetuvigozilodu.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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