Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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.
• Embedded JS stream low PDF_JS
  PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
• 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://inwebjor.ru/uplcv?utm_term=family+island+mod+apk PDF link annotation

  • http://15441707.com/data/board/file/20210913073255.pdfIn PDF document text
  • https://www.generalutilities.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614020c00cfe0---zedalipodurovapevetetonu.pdfIn PDF document text
  • http://aisne.proximeo.com/ckfinder/userfiles/files/gamixutakunugijopenitujes.pdfIn PDF document text
  • http://jindi2010.com/uploadfile/files/gipuvipo.pdfIn PDF document text
  • http://ngor2-3.com/file_media/file_image/file/fodagubonizimatidu.pdfIn PDF document text
  • https://lochoanggia.com/upload/files/newatusaxox.pdfIn PDF document text
  • http://commsoft.nu/demo/ktb/wsmbilder/files/pisonujigusej.pdfIn PDF document text
  • http://zhongjiukeji.com/upload_fck/file/2021-9-9/20210909155236689453.pdfIn PDF document text
  • http://reutlinger.pl/userfiles/file/24115087385.pdfIn PDF document text
  • http://dbcasagayathottam.org/assets/uploads/cms_images/files/85160056934.pdfIn PDF document text
  • http://aptekadc.pl/userfiles/userfile/93212440085.pdfIn PDF document text
  • http://zh-huaxun.com/uploadfiles/files/xerokuzo.pdfIn PDF document text
  • http://kennyre.com/wp-content/plugins/formcraft/file-upload/server/content/files/161379289e4a0e---tuzikejisigojekalemudex.pdfIn PDF document text
  • https://nexusmediation.nl/files/dududazus.pdfIn PDF document text
  • https://clickbox.ro/images/file/35429478575.pdfIn PDF document text
  • http://israel-aliya.com/wp-content/plugins/super-forms/uploads/php/files/b6f44088c3463257ce75efb3fe245498/waxaxagazibakarotosax.pdfIn PDF document text
  • https://jeneifogaszat.hu/cikkdata/files/lojojesatuf.pdfIn PDF document text
  • https://blokhol.com/upload/files/51316499295.pdfIn PDF document text
  • http://attep.com/home/sandbox/domains/heekee.com.hk/public_html/ckfinder/userfiles/files/merosijula.pdfIn PDF document text
  • http://all-vehicle.net/js/upload/files/9862866276.pdfIn PDF document text
  • http://laconchigliacasevacanze.it/userfiles/files/ragezofepoxevapa.pdfIn PDF document text
  • http://stonestudio.pl/files/upload/file/kadogowivufolesazolob.pdfIn PDF document text
  • https://alsultantrading.ae/userfiles/files/65296635084.pdfIn PDF document text
  • https://tahubunting1.com/contents/files/lidoj.pdfIn PDF document text
  • http://www.iuoelocal870.com/kaizen/ckfinder/userfiles/files/79479794293.pdfIn PDF document text
  • https://behagi.eus/files/galeria/files/7719821598.pdfIn PDF document text
  • http://amunt.madteam.net/ckfinder/userfiles/files/vujamaxiz.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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