Malicious PDF — malware analysis report

Heuristics 8

• 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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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://vydavatelstvoklett.sk/userfiles/file/tedafagodagezonaj.pdf In PDF document text

  • https://doucetplasticsurgery.com/ckfinder/userfiles/files/lomutoxobivumolalakar.pdfIn PDF document text
  • https://ocvirapuato.com.mx/wp-content/plugins/super-forms/uploads/php/files/50bc793aacf9aa6ec102865587d66a02/53540177471.pdfIn PDF document text
  • http://ceroki.com/image/files/37329664194.pdfIn PDF document text
  • http://bubblesoflove.net/wp-content/plugins/formcraft/file-upload/server/content/files/1606cb62899adc---89319863599.pdfIn PDF document text
  • https://apoc.com.au/wp-content/plugins/super-forms/uploads/php/files/63fd949fcb6893c5bfadf0858ae74c93/21199389803.pdfIn PDF document text
  • https://thewentworthco.com/wp-content/plugins/super-forms/uploads/php/files/lt8ndao9p1tu9efeehd16nke99/72475886447.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/ckbmc5blc48b9lg112vtor37j2/83394271450.pdfIn PDF document text
  • https://realestateconnect.pro/wp-content/plugins/super-forms/uploads/php/files/vpf6955mvnvive893s6i7qp5a4/49836503482.pdfIn PDF document text
  • http://bjbtrh.com/files/pic/file/vigepobivumujajuxozid.pdfIn PDF document text
  • https://amirep.com/wp-content/plugins/super-forms/uploads/php/files/12d4a8d0ddbf0d0f09ba37b2a24df873/68133538351.pdfIn PDF document text
  • http://eltonltd.ru/sites/default/files/uploads/robugixoxivatexol.pdfIn PDF document text
  • http://cameronhaddock.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d3850765fbd---41589351474.pdfIn PDF document text
  • http://xn--80ackbssfuieecff0e8c.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/ml05biam003miaa78kr9ld2v67/donixoku.pdfIn PDF document text
  • http://files.ibiza-ferien.de/file/11358915042.pdfIn PDF document text
  • https://acgroupenterprise.com/userfiles/file/lusev.pdfIn PDF document text
  • https://neavocats.com/wp-content/plugins/super-forms/uploads/php/files/3e18a79b9bd7f78296f8177682e12e45/vofuzejekolefurimif.pdfIn PDF document text
  • http://bjsprt.com/uploadfile/file///2021070813341252.pdfIn PDF document text
  • https://anitacalderon.com/ckfinder/userfiles/files/selisulabevevepisiwofide.pdfIn PDF document text
  • http://vtracauto.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a278ca9099---wutapitevikutuzujame.pdfIn PDF document text
  • http://orgue-chantepie.info/FCKeditor/upload/file/23133478143.pdfIn PDF document text
  • http://chataphan.com/file_media/file_image/file/fexekusujakerunuf.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/BvfzZFkJO3s/uplcv?utm_term=science+class+7+chapter+11+question+answerPDF 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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