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.
• Callback phishing phone lure medium SE_CALLBACK_LURE
  Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
• 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://queure.ru/uplcv?utm_term=citibank+legal+department+phone+number PDF link annotation

  • https://www.vbclighting.com/wp-content/plugins/super-forms/uploads/php/files/f58e8fb14510363655d07c89f760aba9/36018085334.pdfIn PDF document text
  • http://narnivet.com/userfiles/files/41352141299.pdfIn PDF document text
  • https://akonis.ch/userfiles/files/32124534650.pdfIn PDF document text
  • http://elektrostroy.kz/ckfinder/userfiles/files/47364747178.pdfIn PDF document text
  • https://envomask.com/wp-content/plugins/super-forms/uploads/php/files/8a8d3fbffb77870c1a97e210ebb9008b/lexilulapunojopuverurume.pdfIn PDF document text
  • https://zhbiotech.com/CKEdit/upload/files/98993322350.pdfIn PDF document text
  • http://trans-serwis.com/userfiles/file/jawurisatuzoxebokejep.pdfIn PDF document text
  • https://taptigrihnirman.com/singhania/downloads/file/47018596315.pdfIn PDF document text
  • http://www.marcado.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160837e93be0f2---77813354420.pdfIn PDF document text
  • http://popnmusic.fr/userfiles/file/xavazepowiferu.pdfIn PDF document text
  • https://www.brunosistemi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160fbef0905155---pijutorikazifirinuwijebi.pdfIn PDF document text
  • http://mountmedpharmacy.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160acb9e1a5127---fuponidisuguv.pdfIn PDF document text
  • http://shinaval.ru/userfiles/file/21120995536.pdfIn PDF document text
  • http://vuoncotichdep.com/upload/files/72661388693.pdfIn PDF document text
  • https://inclinedigital.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a07b0161cd7---6748740738.pdfIn PDF document text
  • https://spaslask.pl/wp-content/plugins/super-forms/uploads/php/files/vnuc005f63ebb2vjgidl34j3ii/kezejobav.pdfIn PDF document text
  • http://burchiellati.com./file_fck/file/99097743622.pdfIn PDF document text
  • https://amalighting.com/wp-content/plugins/super-forms/uploads/php/files/2235326e8915fbd179d52e40eeb19976/49943712514.pdfIn PDF document text
  • https://amalighting.com/wp-content/plugins/super-forms/uploads/php/files/ad9b8f92014c48f83b97e11a5b7e72fa/tawivegosaruxip.pdfIn PDF document text
  • http://ledson.ru/upload_picture/gewopuvekofivelawoda.pdfIn PDF document text
  • https://ntwbearing.com/UserFiles/File/64689363701.pdfIn PDF document text
  • http://saipanbooking.com/FileData/ckfinder/files/20210816_61BF58A4A878B2C6.pdfIn PDF document text
  • http://peeweeslearningcenter.org/clients/5/54/545fcf94abc6bccf175f3035c740e6d3/File/16617915380.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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