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
• Recovery secret / private key request critical SE_SECRET_RECOVERY_LURE
  Document requests recovery phrases, private keys, backup codes, or saved passwords. Requests for these secrets in a document are high-risk.
• 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=how+to+remove+digital+signature+from+pdf+online PDF link annotation

  • http://mp-hd.de/data/aktualnosci_imgs/file/wefilugapumil.pdfIn PDF document text
  • http://www.tobywells.org/media/fckdir/file/91311126565.pdfIn PDF document text
  • http://allgeology.ru/ckfinder/userfiles/files/62009258622.pdfIn PDF document text
  • http://lmyc.net/clients/875386/File/95208843923.pdfIn PDF document text
  • https://chambredhotes-savoie.com/ckfinder/userfiles/files/69848373427.pdfIn PDF document text
  • https://chachachat.info/js/ckfinder/userfiles/files/kanemufopekas.pdfIn PDF document text
  • https://tort-art.ru/userfiles/file/68927672336.pdfIn PDF document text
  • http://www.startservis.sk/novy/ckfinder/userfiles/files/21962493331.pdfIn PDF document text
  • http://www.findvoters.com/userfiles/file/vugelakinogos.pdfIn PDF document text
  • https://lesrimaudieres.com/images/uploads/file/tafuzawa.pdfIn PDF document text
  • https://hylyt.co/wp-content/plugins/super-forms/uploads/php/files/8e9290ddfc7c3902c8aaf40f09ff3639/39850457094.pdfIn PDF document text
  • http://oprfhs70.com/clients/879438/File/delogi.pdfIn PDF document text
  • http://www.brennholz-heinlein.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609a4eca4a8a1---vatakuwotokisif.pdfIn PDF document text
  • https://functionalmovement.gr/wp-content/plugins/super-forms/uploads/php/files/588f2414fcb7c4cc6249397a920f0b50/titekulolovel.pdfIn PDF document text
  • http://www.motocams.cz/ckfinder/userfiles/files/tukulod.pdfIn PDF document text
  • http://pospatrans.cz/UserFiles/File/37483655547.pdfIn PDF document text
  • https://nicemexico.net/wp-content/plugins/formcraft/file-upload/server/content/files/160c082a546da2---93820600362.pdfIn PDF document text
  • https://www.litesourcenc.com/wp-content/plugins/super-forms/uploads/php/files/43ad19f98c067f4f60090cdf9654cc97/wowesozaluvubomitu.pdfIn PDF document text
  • https://creteotels.gr/FCKeditor/userimages/file/pamigexugika.pdfIn PDF document text
  • http://vtracauto.com/wp-content/plugins/formcraft/file-upload/server/content/files/16094396b48e13---zateniloxoranoko.pdfIn PDF document text
  • https://advik.net/userfiles/file/93044242981.pdfIn PDF document text
  • http://timnhanhonline.net/upload/files/ruviwitazuma.pdfIn PDF document text
  • https://loctra.net/userfiles/file/27156223697.pdfIn PDF document text
  • https://vetranhtuongmamnon.vn/wp-content/plugins/super-forms/uploads/php/files/622n3hlpbjrhj10ru9tgbtq5dm/92351884516.pdfIn PDF document text
  • https://adiwirawanbali.com/wp-content/plugins/super-forms/uploads/php/files/d78fa9daf9c0e007180f3bac052c153f/365275603.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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