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.
• 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://smidgel.ru/uplcv?utm_term=nios+board+exam+date+sheet+2018 PDF link annotation

  • https://www.marvistasales.com/wp-content/plugins/super-forms/uploads/php/files/30de626685aacdad00d3c572d6155e77/tebake.pdfIn PDF document text
  • http://xn----8sbpvg0afdbe.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/38d8t0g4ugg2o2tfbotapc6267/71603610375.pdfIn PDF document text
  • http://plenar.hr/wp-content/plugins/formcraft/file-upload/server/content/files/1607395e701b22---36046870672.pdfIn PDF document text
  • http://ipceurope.eu/assets/file/33737211647.pdfIn PDF document text
  • https://amezdigital.com/wp-content/plugins/super-forms/uploads/php/files/c5395e3638c345660afb9574a9c54e74/toxixifuniz.pdfIn PDF document text
  • http://amtusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/160735f9851da0---11568764176.pdfIn PDF document text
  • https://www.ayersworthglen.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b73e5c8e7b---zexonatam.pdfIn PDF document text
  • https://rybczewice.pl/userfiles/file/paxama.pdfIn PDF document text
  • http://www.eflox.net/wp-content/plugins/formcraft/file-upload/server/content/files/1607a3dfec967b---83504631513.pdfIn PDF document text
  • https://www.acptechnologies.com/wp-content/plugins/formcraft/file-upload/server/content/files/16091d6e9f38af---27529102175.pdfIn PDF document text
  • http://www.melloecastro.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b90bbc7dcf---pojetewipesudadij.pdfIn PDF document text
  • https://humanistbeauty.com/wp-content/plugins/super-forms/uploads/php/files/ic2tq8nb1dvqsrs3h0gfhr1j27/59143166441.pdfIn PDF document text
  • https://robinio.de/wp-content/plugins/super-forms/uploads/php/files/5h8vp6vog0bbpf1gdj8h9oubtd/72860700438.pdfIn PDF document text
  • https://www.emmabowman.com/wp-content/plugins/super-forms/uploads/php/files/65f3a4c8bbc900f84ccb1827bc66efd0/45117252177.pdfIn PDF document text
  • http://www.thelawchamber.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608fb9544e2ee---39883359800.pdfIn PDF document text
  • https://ajitcoatings.com/uploads/jasarijofovedesariwu.pdfIn PDF document text
  • https://stagerightstaging.com/wp-content/plugins/super-forms/uploads/php/files/7cd850f87befce4eb7322729fce22b1e/30248679270.pdfIn PDF document text
  • http://www.acefence.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608e0a3f3910a---fenusijitivematijij.pdfIn PDF document text
  • http://premiumresourcing.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607356bcbdf95---somupopotarigatowufat.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn 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://scripts.sil.org/OFLIn PDF document text

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