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 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://pistant.ru/uplcv?utm_term=site+reliability+engineering+pdf+github PDF link annotation

  • http://chiengthai.com/file_media/file_image/file/sonulusepugitiporuxafaxot.pdfIn PDF document text
  • http://paykaaluminiya.ru/ckfinder/userfiles/files/rusutexu.pdfIn PDF document text
  • http://scherzerpc.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/2963633629.pdfIn PDF document text
  • https://pfgmm.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16094d67ed5188---wubevexofe.pdfIn PDF document text
  • http://penoplex24.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160e64a60ce440---51738023967.pdfIn PDF document text
  • https://frigosztufi.ro/ckfinder/userfiles/files/fanovizisekajifel.pdfIn PDF document text
  • http://korean-school.hu/hangul/userfiles/file/walag.pdfIn PDF document text
  • https://balbok.net/admin/ckfinder/userfiles/files/namob.pdfIn PDF document text
  • http://www.sistemkabin.com/ckfinder/userfiles/files/69119641674.pdfIn PDF document text
  • https://cbolean.com/wp-content/plugins/super-forms/uploads/php/files/qnj9tc45gg2muggrgirbsva177/47204620788.pdfIn PDF document text
  • http://wrtour.com/FileData/ckfinder/files/20210821_CAB02CB5BF0D3212.pdfIn PDF document text
  • https://majorsagilekvaros.hu/uploads/file/bakudaxos.pdfIn PDF document text
  • https://baongochoa.com/upload/file/jerilovituzepira.pdfIn PDF document text
  • https://finomisgurukul.com/public_html/userfiles/file/jukojawadasufek.pdfIn PDF document text
  • https://qamarapps.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083f8737431d---95918042032.pdfIn PDF document text
  • https://www.simplythebestevents.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160a04140425fb---fobamezu.pdfIn PDF document text
  • http://www.corazondelsol.es/ckfinder/userfiles/files/29598818520.pdfIn PDF document text
  • https://championsforchildren.org/wp-content/plugins/super-forms/uploads/php/files/93a4951a93092b48c80e8f874dd4a99c/legaf.pdfIn PDF document text
  • http://zlato-invest.cz/upload/files/53553311277.pdfIn PDF document text
  • http://www.bluewhaleline.com/image/upload/File/91596354656.pdfIn PDF document text
  • https://cottingham-group.com/cufiles/files/97603290744.pdfIn PDF document text
  • http://kanomax-nsk.ru/images/zakivovawabina.pdfIn PDF document text
  • https://kiameds.com/images/upload/files/26857507922.pdfIn PDF document text
  • http://barudan.hk/UploadFile/file/20210823233443300.pdfIn PDF document text
  • http://www.northeastmarquees.com/wp-content/plugins/super-forms/uploads/php/files/ed8a935cb043f5849d35ade4a3590427/86701088394.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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