Malicious PDF — malware analysis report

Heuristics 8

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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.
• Callback phishing phone lure medium SE_CALLBACK_LURE
  Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
• AcroForm button with action trigger low PDF_ACROFORM_BUTTON
  PDF contains a /Btn form field together with a SubmitForm/URI/Launch/JS trigger — this is the building block of fake 'Download' or 'Open' button overlays used in PDF phishing lures
• 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 http://mannaz.pl/userfiles1/file/pekelapefefawi.pdf In PDF document text

  • https://www.simplythebestevents.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16143162838689---videtujefatuwedutuwivotaw.pdfIn PDF document text
  • http://travelsi.ru/ckfinder/userfiles/files/10616228620.pdfIn PDF document text
  • http://kortennis.co.kr/B/ck/ckfinder/userfiles/files/lasopajibed.pdfIn PDF document text
  • http://wjvanderheidedienstverlening.nl/uploads/file/jibejawodaxazakika.pdfIn PDF document text
  • http://matsusushionline.com/uploads/files/2778911007.pdfIn PDF document text
  • http://sromedical.com/file_media/file_image/file/jazovenow.pdfIn PDF document text
  • http://materialdeestudo.top/userfiles/files/suwigabobed.pdfIn PDF document text
  • https://granitabrasive.com/editor_up/37048609382.pdfIn PDF document text
  • http://accurateverdicts.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613a66d218877---luduzuzo.pdfIn PDF document text
  • https://estoniapools.com/contents/files/84854642250.pdfIn PDF document text
  • http://telek-trans.hu/editor_up/17376585115.pdfIn PDF document text
  • https://prospr.fr/ckfinder/userfiles/files/najatadogemugovanobakudu.pdfIn PDF document text
  • http://el-master.ru/userfiles/file/8690119798.pdfIn PDF document text
  • http://yucehukuk.com/resimler/files/pijifavorilorawep.pdfIn PDF document text
  • https://aznamaste.com/ckfinder/userfiles/files/71457824922.pdfIn PDF document text
  • http://www.qookspot.kitchen/wp-content/plugins/formcraft/file-upload/server/content/files/16142468039ccc---22750296473.pdfIn PDF document text
  • https://imagebuzz.net/ckfinder/userfiles/files/81682529658.pdfIn PDF document text
  • http://zoo-foto.cz/userfiles/file/94925831147.pdfIn PDF document text
  • http://stroynerud-sm.ru/wp-content/plugins/formcraft/file-upload/server/content/files/161329d7321836---39425411294.pdfIn PDF document text
  • http://biancoacolori.it/userfiles/files/29175738516.pdfIn PDF document text
  • https://medsplus.us/admin/images/file/18171458211.pdfIn PDF document text
  • http://westpakusa.com/phpsites/vertical_living/uploads/file/xezuporiwufene.pdfIn PDF document text
  • http://ballmillfactory.com/d/files/93398972663.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/A3Ryygt5BCM/uplcv?utm_term=how+to+get+back+phone+contactsPDF 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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