Malicious PDF — malware analysis report

Heuristics 8

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• MFA / one-time-code harvesting lure high SE_MFA_LURE
  Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
• 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://nomylo.ru/uplcv?utm_term=payment+card+generator PDF link annotation

  • http://kuppersbusch.hu/userfiles/files/lisoxisirisebefek.pdfIn PDF document text
  • http://ldksolar-officialliquidation.com/userfiles/files/81405853692.pdfIn PDF document text
  • https://agrando.cz/files/file/84598670321.pdfIn PDF document text
  • http://www.ettermanenterprises.com/ckfinder/userfiles/files/vobibapadumubamodasubuf.pdfIn PDF document text
  • https://dukupahit.com/contents/files/57584386056.pdfIn PDF document text
  • http://salonlomi.pl/wp-content/plugins/formcraft/file-upload/server/content/files/161378a0d50ea7---dupis.pdfIn PDF document text
  • https://comesa.com.pe/wp-content/plugins/super-forms/uploads/php/files/5c67141eedac9ca16ab200396e4f58ec/veromamojujababat.pdfIn PDF document text
  • http://pc580.cn/upload_fck/file/2021-9-6/20210906211339131597.pdfIn PDF document text
  • http://jingyilin.org/uploads/file/pekok.pdfIn PDF document text
  • https://xlspandoek.nl/userfiles/file/waposisona.pdfIn PDF document text
  • http://xn--elementy-zczne-kwb98g.pl/media/file/55209993906.pdfIn PDF document text
  • http://vladekoservis.ru/files/15335727741.pdfIn PDF document text
  • http://abwhopewell.com/uploads/files/52868271829.pdfIn PDF document text
  • http://admio.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16141b79c865a2---83428032585.pdfIn PDF document text
  • https://dunaweb.co/bg_image/files/sotavevuxomekevotumijan.pdfIn PDF document text
  • https://stcc-sa.com/motakamel/Ups/files/60412767510.pdfIn PDF document text
  • https://pavillonwohlen.ch/userfiles/files/93077295314.pdfIn PDF document text
  • http://wdnederland.nl/file/37387375858.pdfIn PDF document text
  • https://connatlas.com/home/conn/public_html/ckfinder/userfiles/files/48052826770.pdfIn PDF document text
  • https://www.partyshuttlebus.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1614503c8d54f2---60140557444.pdfIn PDF document text
  • https://daulte.com/ckfinder/userfiles/files/povim.pdfIn PDF document text
  • http://centrons.com/uploaded/file/1856470775613046eea385b.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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