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 to algorithmically-generated URL high PDF_RANDOM_URL_LINK
  PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
• 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.
• 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://chcial.ru/uplcv?utm_term=accounting+tutorial+pdf+download PDF link annotation

  • http://festivaldeliteraturadepereira.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f6348fbe5d5---ketemodelilotadijijufosur.pdfIn PDF document text
  • http://happypalettebnb.com/CKEdit/upload/files/74271899107.pdfIn PDF document text
  • http://chandigarhdatarecovery.com/files/file/nezetijigimopip.pdfIn PDF document text
  • http://theemasternetworker.com/ckfinder/userfiles/files/favudugeboxe.pdfIn PDF document text
  • http://www.medicalalliedtraining.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a4f38c0ff72---85221498557.pdfIn PDF document text
  • http://bjhtdszdh.com/v15/Upload/file/202175143192372.pdfIn PDF document text
  • http://seksdagen.nl/userfiles/file/85199984239.pdfIn PDF document text
  • http://nebo52.ru/uploads/files/57139595377.pdfIn PDF document text
  • http://ambulatorioveterinariopisillibertozzi.eu/userfiles/files/20440139798.pdfIn PDF document text
  • http://hwayoung.kr/upfile/files/lesizefogowupujosevo.pdfIn PDF document text
  • https://sirikulsteel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c6d37a48847---52261640931.pdfIn PDF document text
  • http://keralabiblesociety.com/fck_uploads/file/direbutuniburowutaro.pdfIn PDF document text
  • http://circuitoinsulargc.com/documentos/file/53313336530.pdfIn PDF document text
  • http://www.birapart.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bd65304278b---22558744556.pdfIn PDF document text
  • http://esoftland.com/userfiles/file/72339578037.pdfIn PDF document text
  • https://ceilford.org/wp-content/plugins/super-forms/uploads/php/files/5e45526b29391fbeadf47de6cc4271d8/52104120912.pdfIn PDF document text
  • http://5mal4.de/moneyvidya/web/images/userfiles/file/votasenuvevukafiku.pdfIn PDF document text
  • https://connect.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/070bf0bf5825bee7f96566971a102e50/49439787550.pdfIn PDF document text
  • https://www.areatransfers.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608483b1d5b94---51896755248.pdfIn PDF document text
  • http://locthanhwindow.com/img_duhoc/files/mikikamod.pdfIn PDF document text
  • http://miryangpension.com/FileData/ckfinder/files/20210630_8770762885B2291B.pdfIn PDF document text
  • https://www.reparaciondebomba.com.ar/wp-content/plugins/super-forms/uploads/php/files/c2sunbcuoedbec8krljejq44o7/tuwukogoburadaf.pdfIn PDF document text
  • https://satybharat.com/ci/userfiles/files/30818169363.pdfIn PDF document text
  • http://www.magicapro.it/wp-content/plugins/formcraft/file-upload/server/content/files/1612da3efc7712---pokapuvepoxedidelini.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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