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 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.
• Embedded JS stream low PDF_JS
  PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
• 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://beliangka.com/contents//files/zakuzetewa.pdf In PDF document text

  • https://www.ediliziaindustriale.com/wp-content/plugins/formcraft/file-upload/server/content/files/16091e81b28e87---worav.pdfIn PDF document text
  • http://duetsepolno.pl/userfiles/file/wufogilukimawu.pdfIn PDF document text
  • https://40parables.com/wp-content/plugins/super-forms/uploads/php/files/102bbb93e8f0f42f6abfba7257513d13/39694726964.pdfIn PDF document text
  • http://jeugdopdewetenschapsagenda.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1607167ec7b5ce---10961532431.pdfIn PDF document text
  • http://www.mkkdigital.pt/wp-content/plugins/formcraft/file-upload/server/content/files/1607720da22385---75388453634.pdfIn PDF document text
  • http://www.radiopopiatej.com/wp-content/plugins/formcraft/file-upload/server/content/files/160833b41b108e---kopiwawolafelimuw.pdfIn PDF document text
  • https://responsible-tourism-alliance.com/content_file/files/67169029626.pdfIn PDF document text
  • https://happycustomerservice.com/wp-content/plugins/super-forms/uploads/php/files/56995a3dbacaae85347d896e690edbea/kagab.pdfIn PDF document text
  • http://taketty.xyz/js/ckfinder/userfiles/files/69184699952.pdfIn PDF document text
  • https://skyzoan.com/cake/beta/userfiles/file/61405425085.pdfIn PDF document text
  • http://www.appsolutely.sg/wp-content/plugins/formcraft/file-upload/server/content/files/16093c524a3bab---bugafufabit.pdfIn PDF document text
  • http://ipvoicenj.com/wp-content/plugins/formcraft/file-upload/server/content/files/160949ba018f0c---75594143261.pdfIn PDF document text
  • https://aawyx.com/sites/default/imageuser/file/ronezativu.pdfIn PDF document text
  • http://3qlohas.com/CKEdit/upload/files/dopirubanesonagadapekel.pdfIn PDF document text
  • https://broodjedenbosch.nl/ckfinder/userfiles/files/37948033589.pdfIn PDF document text
  • http://witnesstherealist.com/wp-content/plugins/super-forms/uploads/php/files/6480c6fe6b5df225a054283b7a47e694/7845160134.pdfIn PDF document text
  • https://tramhuonghanoi.vn/upload/files/komovutalixuxirikekaf.pdfIn PDF document text
  • http://moestuinwebshop.nl/userfiles/file/nivupig.pdfIn PDF document text
  • http://gostium.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f2f2c99698---21310612848.pdfIn PDF document text
  • https://alcc.vn/wp-content/plugins/super-forms/uploads/php/files/bh9pmf8mncpdg6kdg4qk2p40g9/zidojomafexeluvowanomuvuw.pdfIn PDF document text
  • http://barudan.hk/UploadFile/file/20210530111213120.pdfIn PDF document text
  • https://bselink.com/userfiles/file/gorijezivuvusapuliwa.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/BkSY9tpko7c/uplcv?utm_term=gnm+questions+and+answersPDF 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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