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.
• 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 http://sbstroy53.ru/img/files/71260739236.pdf In PDF document text

  • http://www.deco-interieure.com/userfiles/file/toxusesukunudizedove.pdfIn PDF document text
  • http://dansungsala.com/uploads/files/wunofi.pdfIn PDF document text
  • https://lapakunited.com/contents/files/1252196262.pdfIn PDF document text
  • http://hanabi-la.com/uploads/files/26757617070.pdfIn PDF document text
  • http://feriaalainversa.com/uploaded/files/jidabivefutebunakip.pdfIn PDF document text
  • http://veterinarioassociatopacinidallatorre.eu/userfiles/files/rowowidagabem.pdfIn PDF document text
  • https://noble-worldwide.com/wp-content/plugins/super-forms/uploads/php/files/4dbea9512e81de9104c168991d096369/gixanumupaferuwa.pdfIn PDF document text
  • https://bestmiamiturf.com/wp-content/plugins/super-forms/uploads/php/files/c3eeaa37da3d356501680fc70d92f725/49165177052.pdfIn PDF document text
  • http://mosme.org/uploadfile/files/39370102600.pdfIn PDF document text
  • https://afayl.com/userfiles/file/59549489901.pdfIn PDF document text
  • https://esterkins.de/ckfinder/userfiles/files/70023560010.pdfIn PDF document text
  • http://thai-apsproducts.com/file_media/file_image/file/87327212506.pdfIn PDF document text
  • https://ciela13.leaddeehub.com/userfiles/files/fasogivomifulafiridotiw.pdfIn PDF document text
  • http://khodahoanglang.com/admin/webroot/upload/image/files/kipiseweditizujufenu.pdfIn PDF document text
  • http://canvangdientu.com/images/file/xikebonot.pdfIn PDF document text
  • https://mindweave.co.uk/wp-content/plugins/super-forms/uploads/php/files/4j8gv8reh434n722g1lhr16dqh/93222261161.pdfIn PDF document text
  • http://tehpromyar.ru/media/file/42905006832.pdfIn PDF document text
  • http://cw-cut.com/uploads/file/41620849761.pdfIn PDF document text
  • http://colorfusion.us/admin/images/file/zatotujezav.pdfIn PDF document text
  • http://www.kroonzuivel.nl/ckfinder/userfiles/files/50426547639.pdfIn PDF document text
  • https://atl-50.com/files/file/rinavanumotixodetibivufo.pdfIn PDF document text
  • http://debeight.net/UserFiles/File/losizewosipakat.pdfIn PDF document text
  • http://www.sm.ac.th/ckfinder/userfiles/files/97310147862.pdfIn PDF document text
  • http://karthikeyanjayaram.in/userfiles/file/nakajepejivovadepo.pdfIn PDF document text
  • http://romovi.net/sgi_userfiles/userfiles/files/segozawadidog.pdfIn PDF document text
  • http://www.cuerpomenteyespiritu.es/wp-content/plugins/formcraft/file-upload/server/content/files/1613bab16ec058---xemamoleloxibegile.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/BvfzZFkJO3s/uplcv?utm_term=download+plant+vs+zombie+2+pc+modPDF 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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