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 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://archism.ru/uplcv?utm_term=square+root+of+181+simplified PDF link annotation

  • http://www.hptindia.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613eb16fe0c7d---29182425241.pdfIn PDF document text
  • http://ordineveterinarireggioemilia.it/userfiles/files/2905027244.pdfIn PDF document text
  • http://techbis.pl/files/file/5110145296.pdfIn PDF document text
  • http://nanoscopy.ru/uploads/files/32185918148.pdfIn PDF document text
  • http://xy-interior.com/uploads/files/202110050928417985.pdfIn PDF document text
  • http://bienbao.net/uploads/files/90571739985.pdfIn PDF document text
  • https://solucionaesp.com/ckfinder/userfiles/files/32078366840.pdfIn PDF document text
  • http://owop.challengersports.com/ckfinder/userfiles/files/zekoxobepolepewuxavukot.pdfIn PDF document text
  • http://wib24-admin.de/uploads/file/mogekovegujokapederex.pdfIn PDF document text
  • https://completecollegestrategies.com/wp-content/plugins/super-forms/uploads/php/files/dadadbcfbc7b0090a7e60cfe16ebf30e/xavobigosozowubimo.pdfIn PDF document text
  • http://mobiliteit.nu/files/27284894638.pdfIn PDF document text
  • http://omeofest.eu/userfiles/files/50440482324.pdfIn PDF document text
  • http://nissanotogovap.vn/uploads/images/files/73761163127.pdfIn PDF document text
  • https://www.shamshabaddiocese.org/files/js/ckfinder/userfiles/files/74070286123.pdfIn PDF document text
  • https://estidevelopers.com/wp-content/plugins/super-forms/uploads/php/files/7473eb51cf0f121541dcb04764f3fc2f/37628485318.pdfIn PDF document text
  • http://jakpaisanestate.com/images/upload/files/10937727898.pdfIn PDF document text
  • https://kligi.viart.lt/ckfinder/userfiles/files/39754932077.pdfIn PDF document text
  • http://xn----otbb6ahq3d.xn--p1ai/ckfinder/userfiles/files/favanipaxefim.pdfIn PDF document text
  • https://vanphongphamhienluong.com/upload/files/bumotoputekoxeminapane.pdfIn PDF document text
  • http://9jamail.com/FCKeditor/editor/filemanager/connectors/userfiles/file/zugijizoli.pdfIn PDF document text
  • http://tzoetemondje.be/uploads/files/zamel.pdfIn PDF document text
  • https://wentworthre.com/wp-content/plugins/super-forms/uploads/php/files/8482b23942d2df11537472c572d34894/57223899689.pdfIn PDF document text
  • http://theopenhouseclub.com/wp-content/plugins/super-forms/uploads/php/files/422dc06d067d92549e27e73786af14f6/gumalabakupa.pdfIn PDF document text
  • https://daquin-ferriere.fr/userfiles/file/19107206374.pdfIn PDF document text
  • https://sudahhabis.com/contents/files/99645206038.pdfIn PDF document text
  • http://pwmtqatar.net/userfiles/file/31853090024.pdfIn PDF document text
  • http://paneldeconso.com/userfiles/file/winopuwofajubabog.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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