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://coachtourbusrental.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ae73b3eab40---wurekivevadagesusin.pdf In PDF document text

  • http://partnerplus30.ru/images/fornews/files/75283868461.pdfIn PDF document text
  • http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/16076cd2f89586---55592581331.pdfIn PDF document text
  • http://polyalpan.hu/_user/file/1461243820.pdfIn PDF document text
  • http://penoplex24.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160d184853646c---gawilejesipus.pdfIn PDF document text
  • http://jonkmp.nl/img/cms/file/92965220615.pdfIn PDF document text
  • https://retentionstudentexperience.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609430b1b9a54---61284396973.pdfIn PDF document text
  • https://hopefor.today/wp-content/plugins/super-forms/uploads/php/files/447bd1ce64b110bfc1313fb70848023e/60469525645.pdfIn PDF document text
  • http://degrossier.nl/uploads/file/12509618843.pdfIn PDF document text
  • http://www.shipsupply.co.mz/wp-content/plugins/formcraft/file-upload/server/content/files/160ed04ede029c---fopulowilugelup.pdfIn PDF document text
  • http://lempreintedubois.fr/userfiles/lempreintedubois.fr/file/20926856018.pdfIn PDF document text
  • https://123kozijnofferte.nl/wp-content/plugins/super-forms/uploads/php/files/d62p8opr7aa6jlhln1hbr7f547/siwesupota.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/dd18va37ceur99k17s8mg1mqh1/86536168407.pdfIn PDF document text
  • https://dtcprojects.com.au/wp-content/plugins/super-forms/uploads/php/files/7jsm1d0ql5atjbllgr40u771t7/855197220.pdfIn PDF document text
  • http://petersonspann.com/clients/3/32/32c4b2f41fa698b5b938e848169c8dcb/File/52476988434.pdfIn PDF document text
  • https://baileyelectrical.services/wp-content/plugins/super-forms/uploads/php/files/nf97gj6l55v6i5o6uohoofo3h5/buzerupilewarixupod.pdfIn PDF document text
  • http://indiebookoftheday.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c47cb65bd2---90285802037.pdfIn PDF document text
  • http://trevorhannant.com/89353041412.pdfIn PDF document text
  • http://xn--80aaeiengkwpz6p.xn--p1ai/pub/file/13337133127.pdfIn PDF document text
  • https://www.popcaffe.it/wp-content/plugins/super-forms/uploads/php/files/c99ef74bf27b816414df9fa2f3eb9b39/41915520271.pdfIn PDF document text
  • http://ed-web.cz/userfilesfile/97679447152.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/ngfLrbzwjls/uplcv?utm_term=count+and+uncountable+nounsPDF 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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