Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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://krisoc.ru/uplcv?utm_term=singapore+map+pdf+download PDF link annotation

  • https://tirthmobile.com/wp-content/plugins/super-forms/uploads/php/files/ckpvfasr9ub58u8dmbba2o2221/17031209556.pdfIn PDF document text
  • https://laneopx.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f4396ea8239---9957779832.pdfIn PDF document text
  • https://menlopark.com/wysiwygfiles/file/widofinawebodebasu.pdfIn PDF document text
  • http://cpils.com/userfiles/file/9902308514.pdfIn PDF document text
  • https://dezsredstvompx.ru/wp-content/plugins/super-forms/uploads/php/files/e7049d1ebeadfd8fb3903582dd3f6e8a/momaborirekosugov.pdfIn PDF document text
  • http://megat.pl/uploaded/fck_files/file/92702275788.pdfIn PDF document text
  • http://caribsplash.org/wp-content/plugins/formcraft/file-upload/server/content/files/16070c87888858---25523809732.pdfIn PDF document text
  • https://fatheragneliti.com/wp-content/plugins/formcraft/file-upload/server/content/files/160edf1bb919bd---81201580822.pdfIn PDF document text
  • http://iideree.org/wp-content/plugins/formcraft/file-upload/server/content/files/16105f018e77a6---84925841954.pdfIn PDF document text
  • https://siam-royal-view.ru/data/files/2689283687.pdfIn PDF document text
  • http://remontnoedelo.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16092bd2d0b5d2---87305509324.pdfIn PDF document text
  • http://transgusto.ch/userfiles/file/duzeka.pdfIn PDF document text
  • http://www.justgiveahand.org/wp-content/plugins/formcraft/file-upload/server/content/files/160aab1a797411---zewefadujokos.pdfIn PDF document text
  • http://deurwater.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a194b39cdc---wepofonibe.pdfIn PDF document text
  • http://wmc21.com/ckupload/files/75922255538.pdfIn PDF document text
  • http://www.nanodrywash.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ab5ee8623db---xakox.pdfIn PDF document text
  • http://divorce-difficile.fr/userfiles/file/nixetizuxokeserul.pdfIn PDF document text
  • https://havadisname.com/upload/ckfinder/files/sulid.pdfIn PDF document text
  • https://www.dishdivvy.com/wp-content/plugins/super-forms/uploads/php/files/87a20405008d5cc8015410b3c48dd2ae/gumiguvaxavaseture.pdfIn PDF document text
  • http://a-pluset.com/userfiles/pepaxevizurasoton.pdfIn PDF document text
  • http://www.mtpartnersfl.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a40d6e787e7---82298831763.pdfIn PDF document text
  • https://ewt.cz/res/file/60176920151.pdfIn PDF document text
  • https://earthideasawnings.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b2144443e07---31548908631.pdfIn PDF document text
  • http://teifsepahan.com/files/file/71299053482.pdfIn PDF document text
  • http://www.juniorcollege.cl/ckfinder/userfiles/files/bejofetovevenemiton.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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