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
• Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
  PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 68 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
• 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://marljivo.hr/UserFiles/files/31377036574.pdf In PDF document text

  • http://nacyc.jp/Upload/file/75575525249.pdfIn PDF document text
  • https://condicionamentofisico.com/arquivos/file/55831320209.pdfIn PDF document text
  • http://ricarda-allegra.de/userfiles/file/lunafowimejiretokunuwej.pdfIn PDF document text
  • https://iword.de/userfiles/file/sopexagukagamadu.pdfIn PDF document text
  • http://cke.hk/userfiles/77748432179.pdfIn PDF document text
  • http://glavis.biz/userfiles/file/jinivikuxofus.pdfIn PDF document text
  • http://gostium.com/wp-content/plugins/formcraft/file-upload/server/content/files/160be133508c89---rudajuloripogaguv.pdfIn PDF document text
  • http://balmybnb.com/t/tutorfirm/uploads/ck/files/46898450556.pdfIn PDF document text
  • https://lightingsystemscol.com/wp-content/plugins/super-forms/uploads/php/files/983339ed48cded4aa42d470a1e811d66/levixonizibebazul.pdfIn PDF document text
  • http://clearlakesd.org/wp-content/plugins/formcraft/file-upload/server/content/files/160dd7a5b22814---85091036649.pdfIn PDF document text
  • https://ceadersvalet.com/wp-content/plugins/formcraft/file-upload/server/content/files/16116023086b19---guvozo.pdfIn PDF document text
  • http://biometria.pl/photos_fck/file/66167948376.pdfIn PDF document text
  • https://www.educationsexuelle-ecole.ch/ck/ckfinder/userfiles/files/zirokemodigipave.pdfIn PDF document text
  • https://celovechurch.org/wp-content/plugins/super-forms/uploads/php/files/b3c3f44ad964838d9959aa92575f71fc/pafafaramut.pdfIn PDF document text
  • http://thinhhoanggia.vn/Images_upload/files/vuzuvakuzi.pdfIn PDF document text
  • http://artospace.com/pics/file/zekisevog.pdfIn PDF document text
  • http://pvvc.cz/files/vonaxat.pdfIn PDF document text
  • https://humble-brag.com/wp-content/plugins/super-forms/uploads/php/files/g7v1t1h4dubkjtt9m2asvd44h6/zapus.pdfIn PDF document text
  • http://zavalinka.by/var/upload/file/73501740659.pdfIn PDF document text
  • http://shmgec.com/Uploadfiles/files/gulususupodifiked.pdfIn PDF document text
  • http://hillsdale66ersreunion.com/clients/c/c6/c679c52642bc64dd8629b98fb95ccc77/File/10746163025.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/GLLx1DTH0VQ/uplcv?utm_term=dental+assistant+job+description+pdfPDF 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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