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://ketchas.ru/uplcv?utm_term=online+activity+blood+typing+game+worksheet+answers PDF link annotation

  • http://musclecar-taps.com/js/upload/files/10782097134.pdfIn PDF document text
  • http://ahrestygz.com/userfiles/files/20210628_120053.pdfIn PDF document text
  • http://eco-building.cz/UserFiles/File/44308011956.pdfIn PDF document text
  • http://bayernglobal.de/userVZ/file/zudarusigugononijoxowuko.pdfIn PDF document text
  • http://www.kmclogistics.com/wp-content/plugins/super-forms/uploads/php/files/3b2265a784c5f4221896d26b1f09dc1f/moles.pdfIn PDF document text
  • http://busangh.com/attfile/fckimg/file///20210630111941_459329682.pdfIn PDF document text
  • http://matrixuniverzum.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160833d59b4e5a---jupafotamovubine.pdfIn PDF document text
  • http://terapie-psi.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1607f345dc23e0---37521185347.pdfIn PDF document text
  • http://middlegeorgiacoinclub.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073a03991253---51488617160.pdfIn PDF document text
  • https://ocvirapuato.com.mx/wp-content/plugins/super-forms/uploads/php/files/50ec4b2b79034d8c536ac2b03adb2cdd/75641682540.pdfIn PDF document text
  • https://realwebguys.com/wp-content/plugins/formcraft/file-upload/server/content/files/16098588b26889---65582065603.pdfIn PDF document text
  • http://struttur-arch.it/userfiles/files/lefelukavuxakeburumatoni.pdfIn PDF document text
  • https://tanhoaphat.vn/userfiles/file/bibugixomu.pdfIn PDF document text
  • https://www.fecomerciomg.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/160aae814c05fe---vuwomuvezaloduk.pdfIn PDF document text
  • http://pogotowienaukowe.com/Upload/file/wivurupakeposam.pdfIn PDF document text
  • http://rocb-ap.org/file_media/file_image/file/bosazogiwaputakefafuneg.pdfIn PDF document text
  • https://samiznojmo.cz/wp-content/plugins/super-forms/uploads/php/files/889b3c956e93d24a079dad5214c19c49/feguguwo.pdfIn PDF document text
  • https://bonekarusa.com/contents//files/11887980040.pdfIn PDF document text
  • https://www.etbsupplies.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ade203ae713---boxibunu.pdfIn PDF document text
  • https://auf.vn/wp-content/plugins/super-forms/uploads/php/files/obboviuu0uvbtr5gnl92v8un70/jimubesobopuwomaripakemuz.pdfIn PDF document text
  • http://alpha-th.com/userfiles/file/19002482482.pdfIn PDF document text
  • http://studiogiovannone.com/userfiles/files/jezuz.pdfIn PDF document text
  • http://alexlunacoach.com/img/editor/file/pugege.pdfIn PDF document text
  • http://thesnowmanicecream.com/ckfinder/userfiles/files/sikilawobalofaduvabutiw.pdfIn PDF document text
  • https://webtraffic.ch/wp-content/plugins/super-forms/uploads/php/files/3un11pj8nrt2sfgulspe2p1huc/66930930173.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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