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://synerhu.ru/uplcv?utm_term=urology+mcq+books+pdf PDF link annotation

  • http://artistalexanderkanevskywinnerinternationalaward.com/clientMedia/file/webijojorubowupuweb.pdfIn PDF document text
  • http://quincy.pl/ckfinder/userfiles/files/zukejed.pdfIn PDF document text
  • http://amirafouad.com/uploaded_files/file/33905534815.pdfIn PDF document text
  • http://susasoft.com/upload/userfiles/files/xukolekadawosawixekip.pdfIn PDF document text
  • http://murasakijr.com/uploads/files/zawexofejapevi.pdfIn PDF document text
  • http://girc.ncue.edu.tw/ckfinder/ckfiles/files/budubuganitibevujuzopas.pdfIn PDF document text
  • https://zagorjeadventureteam.hr/files/nazebadorelevunejugabo.pdfIn PDF document text
  • http://snailgame.ru/upload/files/20210811074308.pdfIn PDF document text
  • https://portsidestrategies.com/wp-content/plugins/super-forms/uploads/php/files/4e1473deda1f7f2c71717e82a7b7a7ea/lesur.pdfIn PDF document text
  • http://zzquansu.cn/d/files/reditejuxax.pdfIn PDF document text
  • http://www.blackhillsdancecentre.com/wp-content/plugins/formcraft/file-upload/server/content/files/16081aad3e5195---temizesovitosemezir.pdfIn PDF document text
  • https://www.pal-kont.hu/wp-content/plugins/super-forms/uploads/php/files/902f7dd099301e3029b283c89b8e790e/timokirum.pdfIn PDF document text
  • https://www.hed-endo.hr/wp-content/plugins/formcraft/file-upload/server/content/files/160a24705a6d5f---pabijomizukokanupejomulez.pdfIn PDF document text
  • http://nedirajtebosnu.net/userfiles/file/lafikoresomaximefejibuge.pdfIn PDF document text
  • https://ohligschlaeger-berger.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609c2e648daf3---74596759658.pdfIn PDF document text
  • http://yonseri.org/userfiles/files/68878272499.pdfIn PDF document text
  • https://www.criteriainvest.com.br/wp-content/plugins/super-forms/uploads/php/files/f1cepefvo7k7o1qd4f5u18r2m5/xadamajosujavesapaf.pdfIn PDF document text
  • http://weilandensemble.nl/ckfinder/userfiles/files/jatodosowowudiliwumin.pdfIn PDF document text
  • http://dso-fuzine.si/docs/wirovuberos.pdfIn PDF document text
  • http://bethtikvahevents.ca/clients/2/20/20a91c0cb94b02964b0d1c5d980f1596/File/vupiwosapomevodexolaguv.pdfIn PDF document text
  • http://www.colegiometa.net/home/wp-content/plugins/formcraft/file-upload/server/content/files/160a053e046310---11446267727.pdfIn PDF document text
  • http://tuclubcr.com/campannas/file/80937576299.pdfIn PDF document text
  • http://controldellaves.com/app/webroot/arxius/file/8655880982.pdfIn PDF document text
  • https://areshin.ru/wp-content/plugins/super-forms/uploads/php/files/56429cf69813eebd27eb52d5703ded1e/78908337024.pdfIn PDF document text
  • https://www.puskinas.lt/ckfinder/userfiles/files/52137393194.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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