Malicious PDF — malware analysis report

Heuristics 8

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• MFA / one-time-code harvesting lure high SE_MFA_LURE
  Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
• 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.
• Urgency / deadline lure low SE_URGENCY_LURE
  Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
• 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=password+manager+pro+iphone+app PDF link annotation

  • http://averon.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1613eee7e701f9---bitubaleripolun.pdfIn PDF document text
  • http://library.nesdb.go.th/ic/admin/ckfinder/userfiles/files/zarurivuxomabix.pdfIn PDF document text
  • https://www.mclarenpress.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613f253bae079---keporixerivurinezojasojen.pdfIn PDF document text
  • http://levant-tekstil.com/other_files/File/besej.pdfIn PDF document text
  • http://xn--9p4b29dncp2cc6y.net/upload/fckeditor/file/dukovasezikubu.pdfIn PDF document text
  • http://gezond-trakteren.nl/kasteel-doornenburg-img/bestandenfile/xuwir.pdfIn PDF document text
  • https://deepex.hu/hirek/files/4483068552.pdfIn PDF document text
  • https://hv2barrier.com/application/third_party/ckfinder/userfiles/files/tiroxow.pdfIn PDF document text
  • https://ehblending.com/wp-content/plugins/super-forms/uploads/php/files/40ed3a66e782a23fdf5c88f4d09132bb/61620431151.pdfIn PDF document text
  • http://pharmabiosolutions.com/filespath/files/20210917205117.pdfIn PDF document text
  • http://theofficeplus.com/userfiles/file/xujumimo.pdfIn PDF document text
  • http://krasneclanky.cz/uploads/mazamixemawitutekulunax.pdfIn PDF document text
  • https://callmarkinvestments.com/callmark/files/85643148245.pdfIn PDF document text
  • https://stefandes.com/wp-content/plugins/formcraft/file-upload/server/content/files/16137c12435b8c---71861712743.pdfIn PDF document text
  • https://claphamjunction.com.au/wp-content/plugins/super-forms/uploads/php/files/63ce34207f0ae0a34b61f26542e33929/vunenitatazedalomedufar.pdfIn PDF document text
  • http://julieesteban.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613c7b998f5eb---72443731548.pdfIn PDF document text
  • https://www.actionconstructionjax.com/wp-content/plugins/super-forms/uploads/php/files/53b38ce4eff8766154e36509feca4df9/64539335407.pdfIn PDF document text
  • http://grawerlik.pl/userfiles/file/duzezatamar.pdfIn PDF document text
  • http://strahovka66.ru/userfiles/file/vixowuvavonokopegejepada.pdfIn PDF document text
  • http://annamsaigonlaw.com/upload/files/mirugip.pdfIn PDF document text
  • http://www.binghan.my/userfiles/file/70776793368.pdfIn PDF document text
  • https://reklama71.ru/upload_picture/3955502689.pdfIn PDF document text
  • http://easy-sleep24.de/shop/images/editorfiles/file/vanupuruxararu.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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