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://huntic.ru/uplcv?utm_term=network+programming+lab+manual+for+m+tech PDF link annotation

  • https://vizzzio.ru/wp-content/plugins/super-forms/uploads/php/files/5b715baf9f7ddd2230142cfc547fdff0/42634041205.pdfIn PDF document text
  • http://botosani.ro/img/uploads/file/27301028810.pdfIn PDF document text
  • https://stewsites.com/wp-content/plugins/super-forms/uploads/php/files/e20b89dda8283a5bc123000825514e91/43597228747.pdfIn PDF document text
  • http://xn--12cmi2byac9cdhd0hra6d7bxkwbgj1gch.com/user_img/files/disanorewirekamutu.pdfIn PDF document text
  • https://rcvizovice.cz/ckfinder/userfiles/files/22342849646.pdfIn PDF document text
  • http://gruppocaminiti.it/userfiles/files/gomivomi.pdfIn PDF document text
  • http://www.risingstars.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160d2b8f6d4028---95097205449.pdfIn PDF document text
  • http://nacyc.jp/Upload/file/17886096633.pdfIn PDF document text
  • https://presstone.hu/userfiles/file/26204573168.pdfIn PDF document text
  • https://lisacutler.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e56804b667---31501806327.pdfIn PDF document text
  • http://iideree.org/wp-content/plugins/formcraft/file-upload/server/content/files/16114567b5fc90---bopibojere.pdfIn PDF document text
  • http://etasystem.net/userfiles/files/sowonekidaxezina.pdfIn PDF document text
  • https://misbahelmudii.org/ckfinder/userfiles/files/gagelakaxinedegemelukat.pdfIn PDF document text
  • http://anhuizhkj.com/upload_fck/file/2021-4-30/20210430234748697253.pdfIn PDF document text
  • http://blevy.com/ckfinder/userfiles/files/meneni.pdfIn PDF document text
  • http://jimmartinfamilyreunion.com/clients/35696/File/96618103923.pdfIn PDF document text
  • https://happycustomerservice.com/wp-content/plugins/super-forms/uploads/php/files/912e7b3b6b2145ebe374cdf18a5b4a12/tevajus.pdfIn PDF document text
  • http://ambvetbrashersclavoghisu.eu/userfiles/files/pusexixezofilukegivojolar.pdfIn PDF document text
  • http://wf515345.tw/CKEdit/upload/files/borewipuzikinumobe.pdfIn PDF document text
  • http://jeugdopdewetenschapsagenda.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160b446b3e9139---sapejesojup.pdfIn PDF document text
  • http://ambulatorioveterinarioilghirlandaio.it/userfiles/files/wojawelojozibikavasu.pdfIn PDF document text
  • http://www.trimbleexpress.sk/wp-content/plugins/formcraft/file-upload/server/content/files/1607ec3a08143f---pevutirapabiripefabazote.pdfIn PDF document text
  • http://www.moteco.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16090d85a9a31c---28036284368.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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