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://afayl.com/userfiles/file/45458261439.pdf In PDF document text

  • http://cnzhongkui.com/fckeditor/editor/filemanager/connectors/php/uploads/file/102204289274.pdfIn PDF document text
  • http://veterinarioassociatopacinidallatorre.eu/userfiles/files/26888883924.pdfIn PDF document text
  • http://moto-bike.pl/userfiles/file/94880509984.pdfIn PDF document text
  • https://247hvac.ca/fabulous1/uploads/files/witewopigiwubokozutexop.pdfIn PDF document text
  • http://allnatureint.com/userfiles/file/8211165238.pdfIn PDF document text
  • https://nazrabilisim.com/calisma2/files/uploads/11200039777.pdfIn PDF document text
  • https://iamluno.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c0ff167d080---sazipubate.pdfIn PDF document text
  • http://www.gabrielamaciel.net/images/content/file/34052862356.pdfIn PDF document text
  • http://www.onekaddy.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bf204c752e9---zazoregotibojejaz.pdfIn PDF document text
  • http://bycongroup.com/UserFiles/file/gabasuzem.pdfIn PDF document text
  • http://www.iycadana.org/wp-content/plugins/super-forms/uploads/php/files/l0g29h52sgu7sefpai2cr59g74/44858342731.pdfIn PDF document text
  • https://www.ptlittleflower.org/wp-content/plugins/super-forms/uploads/php/files/0nlpnb9hmerjtlbdsurejrlno8/17171799783.pdfIn PDF document text
  • http://pphjako.pl/userfiles/file/83214858940.pdfIn PDF document text
  • http://srividyaastrology.com/userfiles/file/91321139147.pdfIn PDF document text
  • https://oversaslogistica.it/file/3599467699.pdfIn PDF document text
  • https://sv-fin.ru/wp-content/plugins/super-forms/uploads/php/files/d35edab01c58b0e55f54a339e5f174df/98605577900.pdfIn PDF document text
  • https://www.dentaltaxpros.com/wp-content/plugins/super-forms/uploads/php/files/1a7c63455d438ca24ff325440caf346b/65562509774.pdfIn PDF document text
  • http://nutranghongngoc.com/media/ftp/file/xenedirenive.pdfIn PDF document text
  • https://htfcompact.com/wp-content/plugins/super-forms/uploads/php/files/eb5c2c3696fac4f43c0e789c0e2a9607/72358377757.pdfIn PDF document text
  • https://adtw1.com/ckfinder/userfiles/files/27025129833.pdfIn PDF document text
  • http://suportti.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cc17920f168---bifuwiliwi.pdfIn PDF document text
  • http://miracleschoolministries.com/survey/userfiles/files/mujafobokudo.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/cv9VXjIrmdE/uplcv?utm_term=boom+beach+hacks+iosPDF 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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