Malicious PDF — malware analysis report

Heuristics 7

• 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 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.
• 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://contactfm.be/userfiles/files/74077303854.pdf In PDF document text

  • https://kodcomputers.ro/2664/uploads/vitopunosukatofofuva.pdfIn PDF document text
  • http://westboroughhigh76.com/clients/b/bc/bc4984db1d461a603911d7e4814e3e59/File/fasojekovomomubosupivo.pdfIn PDF document text
  • http://lbs.ac.at/wp-content/plugins/super-forms/uploads/php/files/d778b46kgp20c7v3n7udas6md2/goxarafigelixiwibok.pdfIn PDF document text
  • http://kystop.com/wp-content/plugins/super-forms/uploads/php/files/o0fi6mlhvo9mj5uh9431g51ht2/wapev.pdfIn PDF document text
  • http://cuatro-pr.org/sites/default/files/file/79224140370.pdfIn PDF document text
  • https://www.medicalart.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160930e5719585---pajuzamebenebufenogu.pdfIn PDF document text
  • https://photographerin.agency/wp-content/plugins/super-forms/uploads/php/files/s6anp9pmf168va839kjcne1t30/bosifovisolabobig.pdfIn PDF document text
  • https://dacoma.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160c682b2683d9---kefudakin.pdfIn PDF document text
  • https://muratay.nl/userfiles/file/vilad.pdfIn PDF document text
  • https://palezieux.com/ckfinder/userfiles/files/46783569059.pdfIn PDF document text
  • http://sugarfree-gelato.com/upload/file/76142360136.pdfIn PDF document text
  • http://fotossc.pl/_files/file/zovetetuwuvoma.pdfIn PDF document text
  • http://quatanggiabao.com/images/uploads/files/65393736637.pdfIn PDF document text
  • https://vaytieudungtragop.com.vn/wp-content/plugins/super-forms/uploads/php/files/1kjk3uh0rpf0apmggu14tr03hr/bujovapakigirife.pdfIn PDF document text
  • http://caigeshi.com/uploadfile/file/2021070608480573499.pdfIn PDF document text
  • http://www.annaleehuber.com/content_files/file/65735263880.pdfIn PDF document text
  • https://angkoronetour.com/userfiles/file/sofudake.pdfIn PDF document text
  • http://nhs1980alumni.com/clients/878257/File/xemerafefadofifuzexi.pdfIn PDF document text
  • http://tweddlefoto.com/files_contenidos/upload/files/93810167421.pdfIn PDF document text
  • http://tfforming.ru/d/files/88002317498.pdfIn PDF document text
  • http://www.anclupnapoli.it/userfiles/file/denidasobitedal.pdfIn PDF document text
  • http://artistalexanderkanevskyroyalshakespeareglobetheatrelondon.com/clientMedia/file/39390589886.pdfIn PDF document text
  • http://sinara.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/1609b685cc9ff7---niforivadawaweriba.pdfIn PDF document text
  • http://szymonadamczyk.pl/uploads/fck/file/zogudiponezoxe.pdfIn PDF document text
  • http://tai-yang.tw/taiyang/upload/file/tegukubapu.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/cv9VXjIrmdE/uplcv?utm_term=section+33+of+registration+actPDF link annotation
  • 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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