Malicious PDF — malware analysis report

Heuristics 8

• 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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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=electronics+competitive+exam+questions+pdf PDF link annotation

  • https://sudhirsachdevaclasses.com/ci/userfiles/files/kepawilufatimedexizeke.pdfIn PDF document text
  • https://securitydm.rs/slicice/file/vaniwi.pdfIn PDF document text
  • https://veglifekc.org/wp-content/plugins/super-forms/uploads/php/files//ruloginekidujiridejewe.pdfIn PDF document text
  • https://bangkoksolarpower.com/syner_upload/images/files/4803776085.pdfIn PDF document text
  • http://brezov-gaj.si/uporabnik/file/34646763194.pdfIn PDF document text
  • https://tyko.pl/userfiles/file/dipudifulidutigajazumubi.pdfIn PDF document text
  • https://www.truegridpaver.com/wp-content/plugins/super-forms/uploads/php/files/d1eda8933731c2bb7da93fb603ef34a7/popojolax.pdfIn PDF document text
  • http://lirealestatelitigator.com/wp-content/plugins/super-forms/uploads/php/files/a3be078fbdba346a54f07bba56517fdd/58937870870.pdfIn PDF document text
  • https://www.acptechnologies.com/wp-content/plugins/formcraft/file-upload/server/content/files/16134ff4026f8a---98612792007.pdfIn PDF document text
  • http://privateeducation.sg/verzsape/demo/upload/admin/files/98271340374.pdfIn PDF document text
  • http://www.etoiles-recrutement.com/wp-content/plugins/formcraft/file-upload/server/content/files/160867b4072f0d---luvurexudebororudagim.pdfIn PDF document text
  • http://big-blue-bus.com/pics/fotos/1/file/90286616652.pdfIn PDF document text
  • https://ltgtrends.com/wp-content/plugins/super-forms/uploads/php/files/778cb3511f6e5746d925aa2023e3e736/puzotiderobinuj.pdfIn PDF document text
  • http://www.ncstarim.com.tr/wp-content/plugins/super-forms/uploads/php/files/o9vgoia5c2pmt8sd11gdkcoa90/48261129477.pdfIn PDF document text
  • https://kantankacreative.com/wp-content/plugins/super-forms/uploads/php/files/eda5fa9d231c709fffd96f20e25eb995/jebuviforadalawi.pdfIn PDF document text
  • http://smartcookieacademy.com/wp-content/plugins/formcraft/file-upload/server/content/files/16082da967fa89---19120392547.pdfIn PDF document text
  • https://chatsystem.site/js/ckfinder/userfiles/files/84678325897.pdfIn PDF document text
  • http://3gr-group-com.gbintl.com/ci/userfiles/files/52731197925.pdfIn PDF document text
  • http://victoryelectricalsupply.com/ckfinder/userfiles/files/fipofodidupix.pdfIn PDF document text
  • http://k-ookuma.com/js/upload/files/venuvu.pdfIn PDF document text
  • http://kurdumovldpr.ru/uploads/files/22572466504.pdfIn PDF document text
  • https://creativesilhouettes.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160c90739cb3de---molomemidizolirozonuk.pdfIn PDF document text
  • http://kisito.com/userfiles/file/faramutil.pdfIn PDF document text
  • http://aliceinformaticasrl.com/user/pages/lanikakobojozafamewilenab.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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