Malicious PDF — malware analysis report

Heuristics 9

• 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.
• 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.
• Embedded JS stream low PDF_JS
  PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
• 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://queure.ru/uplcv?utm_term=dove+icon+pack+download PDF link annotation

  • http://www.pattyn360.com/upload/forum/files/83913420681.pdfIn PDF document text
  • http://cottoneauto.it/userfiles/files/66028236442.pdfIn PDF document text
  • http://ntvietnga.com/upload/files/42749921531.pdfIn PDF document text
  • https://www.chauffeur-prive-nice.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1613d3afba7e20---zitedobakewepuz.pdfIn PDF document text
  • http://nocleginaplus.pl/uploads/userfiles/files/soges.pdfIn PDF document text
  • https://gogift-it.com/userfiles/files/nomifukowasewasotan.pdfIn PDF document text
  • http://triumphtoday.org/wp-content/plugins/formcraft/file-upload/server/content/files/161392a33bf784---wufefeziletubuv.pdfIn PDF document text
  • http://world-housing.jp/ckfinder/userfiles/files/lowuwagixiwo.pdfIn PDF document text
  • http://haithuanphat.com/uploads/files/10669689344.pdfIn PDF document text
  • http://usmleworkout.com/files/file/jakow.pdfIn PDF document text
  • http://www.humillacionyestrella.org/ckfinder/userfiles/files/84644177512.pdfIn PDF document text
  • https://imotrading.com/images/userfiles/xovupomegomen.pdfIn PDF document text
  • http://telekommarketing.com/firme_data/files/65300027601.pdfIn PDF document text
  • http://landroverbh.com/ckfinder/userfiles/files/savavukenakelinukozujanub.pdfIn PDF document text
  • http://triple-a.co.th/ckfinder/userfiles/files/21510835094.pdfIn PDF document text
  • http://www.romanschatztruhe.de/img/files/88848466112.pdfIn PDF document text
  • http://www.donboscovizag.org/images/files/valajisarasadufav.pdfIn PDF document text
  • http://ambulatorioveterinarioilghirlandaio.it/userfiles/files/56922585047.pdfIn PDF document text
  • http://cetis156.neutronds.com/assets/js/ckfinder/userfiles/files/85045617386.pdfIn PDF document text
  • https://samirkumarpaul.com/ckfinder/userfiles/files/vodigabalenuvuxub.pdfIn PDF document text
  • http://bettaletroom.com/file_media/file_image/file/gesorojuvenezes.pdfIn PDF document text
  • http://www.propper-droppers.nl/files/file/kovigugi.pdfIn PDF document text
  • https://izharfoster.com/wp-content/plugins/formcraft/file-upload/server/content/files/16136d2e1e8b02---34402350564.pdfIn PDF document text
  • http://minhanh.com/files/vumas.pdfIn PDF document text
  • http://tongshengchem.com/ckfinder/userfiles/files/67251295396.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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