Malicious PDF — malware analysis report

Heuristics 6

• 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 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://krisoc.ru/uplcv?utm_term=libro+biologia+molecular+e+ingenieria+genetica+jose+luque+pdf PDF link annotation

  • http://bjsixiang.com/jingkelun/userfiles/files/20210701142419.pdfIn PDF document text
  • http://ddservice-bmw.pl/userfiles/file/73356744319.pdfIn PDF document text
  • http://www.lbf-cosmetics.com/website/wp-content/plugins/formcraft/file-upload/server/content/files/16087f4ecbffdf---vomajalig.pdfIn PDF document text
  • http://vetportonaccio.it/userfiles/files/jozumedofa.pdfIn PDF document text
  • https://www.davinci.dk/wp-content/plugins/formcraft/file-upload/server/content/files/16103ce0d6a5bc---wonorosenamanukusizubuji.pdfIn PDF document text
  • https://mollis.rs//files/rikoz.pdfIn PDF document text
  • https://xn--80adj7cxa.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/9bda7421bc44c5835e4eeecfde7ec8bd/59711588654.pdfIn PDF document text
  • http://wksystems.net/HotelEstimator/userfiles/file/fodinemijodejogif.pdfIn PDF document text
  • https://vigiweb.cl/dinamicos/files/file/79754190885.pdfIn PDF document text
  • http://erfolgsapp.de/wp-content/plugins/formcraft/file-upload/server/content/files/160bed152313a5---bifepevunimikutufolekowa.pdfIn PDF document text
  • https://inchiriereelicoptere.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1606c8393f2b17---wipegab.pdfIn PDF document text
  • http://ubest.ru/images/file/pifogisesavuwigexev.pdfIn PDF document text
  • https://www.golaw.net/wp-content/plugins/formcraft/file-upload/server/content/files/160d48cdfe7cad---55079932094.pdfIn PDF document text
  • http://sl1971.com/clients/5/51/517263f0417f9379c67e6eba0e0bdfe8/File/62353791678.pdfIn PDF document text
  • http://compie.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160930965a1836---mapaxenujukurexawajupa.pdfIn PDF document text
  • http://ipceurope.com/assets/file/10997316695.pdfIn PDF document text
  • https://vernadoc.com/wp-content/plugins/super-forms/uploads/php/files/e9763163a23b27c5fd33496d3caeb891/24908319889.pdfIn PDF document text
  • https://www.generalutilities.com/wp-content/plugins/formcraft/file-upload/server/content/files/160782db3df422---raruruzor.pdfIn PDF document text
  • https://whiteelephant.co.in/wp-content/plugins/super-forms/uploads/php/files/85b5751acd3dbdf1c6d5901bba9d5fed/70849128747.pdfIn PDF document text
  • http://africansafaris-spain.com/FCKeditor/editor/filemanager/connectors/php/connector.php?Command=FileUpload&Type=File&CurrentFolder=%2Ffile/dizimatafiboje.pdfIn PDF document text
  • https://psychologgia.pl/Upload/file/dinulotejijojewamowilasu.pdfIn PDF document text
  • https://www.gs-gleichmann.de/wp-content/plugins/formcraft/file-upload/server/content/files/160e4efa394b27---95795024577.pdfIn PDF document text
  • https://arzhosting.com/calisma2/files/uploads/66166249298.pdfIn PDF document text
  • https://berbagiangka.com/contents//files/34371588466.pdfIn PDF document text
  • https://olterus.com/contents//files/sobafa.pdfIn PDF document text
  • http://curry-box-deluxe.de/userfiles/file/vifilunenujafap.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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