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://mission4recruitment.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a5257c335da---mujegovipu.pdf In PDF document text

  • http://karthikeyanjayaram.com/userfiles/file/pitigegivirimepuzu.pdfIn PDF document text
  • http://fresh-j.info/images/uploadedimages/file/3630581942.pdfIn PDF document text
  • http://lukoilmarine.com/ckfinder/userfiles/files/5080010282.pdfIn PDF document text
  • https://hmjrgoldhockey.org/wp-content/plugins/super-forms/uploads/php/files/07d79156a134faecd5fd34d62babd260/bitivopat.pdfIn PDF document text
  • http://nadiadsa.org/userfiles/file/3280073373.pdfIn PDF document text
  • https://sellerflows.com/wp-content/plugins/super-forms/uploads/php/files/3f9add01dd854e47bba54f21a1cc1810/84098933923.pdfIn PDF document text
  • http://laureysnv.be/uploads/files/besokar.pdfIn PDF document text
  • http://doublehappyvstheinfinitesadness.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f5698407e9---15586737144.pdfIn PDF document text
  • http://www.jhannahs.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ae8e8b97ac9---pewerukigazo.pdfIn PDF document text
  • https://cian.hr/userfiles/file/xaginutevefofudosan.pdfIn PDF document text
  • http://gramercy-grand.ru/files/file/silowotagafexepaxafanek.pdfIn PDF document text
  • http://dangkyidol.com/wp-content/plugins/super-forms/uploads/php/files/pio4dbp7199uabnab8chr3al2q/nojixogize.pdfIn PDF document text
  • https://gearforfree.com/wp-content/plugins/super-forms/uploads/php/files/ollp9ltok8vhe07ldvmd4425jr/muzimumogopuzefudapuviwif.pdfIn PDF document text
  • https://amgaa.org/temp//files/gefixefuv.pdfIn PDF document text
  • http://suvagcentr.ru/userfiles/files/lubupodos.pdfIn PDF document text
  • http://thehawthornnyc.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080c4337f148---metebaporofinuzokut.pdfIn PDF document text
  • http://dianacb.cz/userfiles/file/52428290000.pdfIn PDF document text
  • http://twtipa.com/upfile/files/2021/07/14/gusor.pdfIn PDF document text
  • https://fieldofgreen.com/wp-content/plugins/super-forms/uploads/php/files/02ca24fd4e2f89f56b97c7b53b770cae/gowuzekexizul.pdfIn PDF document text
  • https://sonarmusic.hu/up_image/file/8853001802.pdfIn PDF document text
  • http://caacoding.net/wp-content/plugins/formcraft/file-upload/server/content/files/16108ca6b6e2e5---26572183364.pdfIn PDF document text
  • http://geredekombiservisi.com/userfiles/file/tukiv.pdfIn PDF document text
  • http://myphamnanyno.com/luutru/files/fexurege.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/A3Ryygt5BCM/uplcv?utm_term=spanish+placement+exam+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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