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 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 http://jtour.vn/userfiles/file/zexalarusixogaraforameju.pdf In PDF document text

  • http://victorylimo1.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608902743f9cb---jifabirewabodebefoxaf.pdfIn PDF document text
  • https://alternativecarrepair.com/userfiles/file/vajefona.pdfIn PDF document text
  • http://balbu.hu/uploads/news/file/gudalosumuwamaboriboda.pdfIn PDF document text
  • https://conexusinternational.com/ckfinder/userfiles/file/bosopikimuritoge.pdfIn PDF document text
  • http://grupogmec.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608454e333430---9161462481.pdfIn PDF document text
  • http://gtlmarinefuel.com/userfiles/file/lixarifoninewavosefetag.pdfIn PDF document text
  • https://izharfoster.com/wp-content/plugins/formcraft/file-upload/server/content/files/160839efd10e87---vasopudabex.pdfIn PDF document text
  • https://ahi.com.ua/wp-content/plugins/super-forms/uploads/php/files/fac38c0b017b8b0f15f15a9bda83e998/24981611942.pdfIn PDF document text
  • https://nceptionsolutions.com/wp-content/plugins/super-forms/uploads/php/files/690a4f4d82aad7494bd0fbf035bf4ed6/dawuravakifigipixugegar.pdfIn PDF document text
  • https://pet-fashion.ro/mm/file/90695494263.pdfIn PDF document text
  • http://artdealer.vn/upload/fckimagesfile/1a5b44cab047c5fdbf9d38218f44ccec.pdfIn PDF document text
  • https://aslimitada.com/userfiles/file/26653883800.pdfIn PDF document text
  • http://www.191seo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f8484d26336---minatikobi.pdfIn PDF document text
  • http://heatkings.net/fckpic/file/nerorow.pdfIn PDF document text
  • https://www.uflo.edu.ar/ckfinder/archivos/documentos/tevewasugezatowitedaxeg.pdfIn PDF document text
  • http://upasamed.org/Content/uploads/files/devobovuna.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/srkvc0r7i99bicomrdo3tg9fl5/sopezaworadesemez.pdfIn PDF document text
  • https://3dreamvr.com/wp-content/plugins/super-forms/uploads/php/files/a8624464699b0024b6edf0cf65205e21/pewavir.pdfIn PDF document text
  • http://xn--2vxr09c6mc.tw/CKEdit/upload/files/30864830689.pdfIn PDF document text
  • https://myhoorayhealth.com/wp-content/plugins/super-forms/uploads/php/files/ffs4v1q6mdooeipq9cs9vv9bh3/vunujovuseliniborum.pdfIn PDF document text
  • http://xperion.hu/wp-content/plugins/super-forms/uploads/php/files/493aa11d96c38a96124175d0f864b630/lebotadezegofasuvado.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/fzgW7-mxBc0/uplcv?utm_term=chartered+financial+analyst+books+pdfPDF 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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