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
• PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
  PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
• 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://pistant.ru/uplcv?utm_term=seoul+metro+subway+map+pdf PDF link annotation

  • http://madveras.com/ckfinder/userfiles/files/82916506004.pdfIn PDF document text
  • https://canadianrelocation.net/wp-content/plugins/formcraft/file-upload/server/content/files/160705dc58ba0c---famawegotorev.pdfIn PDF document text
  • https://altonika.pro/files/fck/file/kotaxolobokusejag.pdfIn PDF document text
  • https://mission4recruitment.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f571799255---baxamese.pdfIn PDF document text
  • https://stpetejazz.com/wp-content/plugins/super-forms/uploads/php/files/ggh6ub2su8mvp8pt43aho0bsj8/58424462995.pdfIn PDF document text
  • http://amidoux-peintures.com/ckfinder/userfiles/files/38271971519.pdfIn PDF document text
  • https://spencershaulageltd.co.uk/wp-content/plugins/super-forms/uploads/php/files/817f15e7142ba994304d44aa5e0a5abc/50063934693.pdfIn PDF document text
  • https://tungqibiotech.com/upfiles/editor/files/32559504795.pdfIn PDF document text
  • http://vzwsportenmuziek.com/content_docs/86878901342.pdfIn PDF document text
  • http://botosani.ro/img/uploads/file/zesetavok.pdfIn PDF document text
  • http://kartywspomnien.pl/uploads/assets/file/lebigugawi.pdfIn PDF document text
  • http://www.training4thefuture.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160b27e221cac1---rumin.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/54a0hm7fvk3cfbbm95ebg02m34/36196844305.pdfIn PDF document text
  • http://automsystem.com/UploadFile/file/20210613224805705.pdfIn PDF document text
  • https://gerastar.com/userfiles/file/16473232657.pdfIn PDF document text
  • http://cancunday.com/travela/img/files/62946848588.pdfIn PDF document text
  • https://www.cedicar.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bf12e2e034a---94006146481.pdfIn PDF document text
  • http://sirinthepgroup.com/userfiles/file/xedawuvugij.pdfIn PDF document text
  • http://www.juniorcollege.cl/ckfinder/userfiles/files/27825034008.pdfIn PDF document text
  • http://gamebonda.com/ckupload/files/suvafusoxip.pdfIn PDF document text
  • http://bijverhoeven.nl/uploads/files/14778902201.pdfIn PDF document text
  • http://smartcookieacademy.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609830820c937---numijazikanarujofo.pdfIn PDF document text
  • http://birons.net/wp-content/plugins/super-forms/uploads/php/files/d10b0a70644686ffddda3035f3bdf606/bulawuwefit.pdfIn PDF document text
  • http://kolaykanal.com/userfiles/files/37505239581.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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