Malicious PDF — malware analysis report

Heuristics 6

• 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.
• 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://crysiq.ru/uplcv?utm_term=supreme+mathematics+120+lessons+pdf+download PDF link annotation

  • https://sharadsangam.org/UserFilesTwo/file/61311194185.pdfIn PDF document text
  • https://f2h63c2.ip4secure.net/upload/files/58144888998.pdfIn PDF document text
  • https://xn--64-mlcufjjaii0l.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/86df098e9fa38601a26341dd049bd498/52652102181.pdfIn PDF document text
  • https://maydongy.com/wp-content/plugins/super-forms/uploads/php/files/vemgmo3bg705vpulujbvui1p81/11326646276.pdfIn PDF document text
  • http://bumsnab.ru/uploads/files/fuxomatikivin.pdfIn PDF document text
  • https://www.corridar.com/wp-content/plugins/super-forms/uploads/php/files/emm7fhptgsv5im85hvonlt4886/ritodirinojiz.pdfIn PDF document text
  • http://alphasigmaoverseas.com/userfiles/file/rozitapexepabotodusojiso.pdfIn PDF document text
  • http://asiavent.com/UserFiles/file///35035881250.pdfIn PDF document text
  • http://matsonconstruction.net/userfiles/file/dezuzoluseda.pdfIn PDF document text
  • https://jetzterstrecht.hamburg/wp-content/plugins/super-forms/uploads/php/files/are4ijnb28tqo4sq4g177ba94r/fukijadalosuxisokibuwu.pdfIn PDF document text
  • http://travellightnepal.com/userfiles/file/42638424603.pdfIn PDF document text
  • http://fortlauderdalelimorental.net/wp-content/plugins/formcraft/file-upload/server/content/files/160d2dba97633c---vipuzuku.pdfIn PDF document text
  • https://allcreaturesinc.com/files/files/birolutimibakigazikote.pdfIn PDF document text
  • https://www.intermediastudios.com.mx/wp-content/plugins/super-forms/uploads/php/files/486a854dff94ed07ac7dc985b83535ba/fepiwekuwasenevadefagogi.pdfIn PDF document text
  • https://www.freshstartdigitalmarketing.com/wp-content/plugins/super-forms/uploads/php/files/b9f9a3cb701fa1a648f10beefbf69126/vofupumaxofomivopomafake.pdfIn PDF document text
  • https://kvgrup.com.ua/wp-content/plugins/formcraft/file-upload/server/content/files/1608c512920bca---dimutudegivasejarer.pdfIn PDF document text
  • http://www.rec39.ru/wp-content/plugins/super-forms/uploads/php/files/32eba13fc4fc44b4cf0196948d7968a0/valirekiluvamugoxufime.pdfIn PDF document text
  • https://www.drserapkagan.com/wp-content/plugins/super-forms/uploads/php/files/etpd70jt39k0aq16nced28d706/59655443547.pdfIn PDF document text
  • http://iltorg.ru/upload/file/kuregopos.pdfIn PDF document text
  • https://coil.hk/upload/files/30675511894.pdfIn PDF document text
  • https://www.m2asolutions.com/wp-content/plugins/super-forms/uploads/php/files/ed24f91e40d5faacf7165c2396fb5ae9/fanipelewi.pdfIn PDF document text
  • http://ytovietnam.net/ckfinder/userfiles/files/mojagowefavafavatisuj.pdfIn PDF document text
  • https://xn--80aaa1anac6cg.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/bcee73c1322aa6f201a34a4d9f431dd7/67595823374.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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