Malicious PDF — malware analysis report

Heuristics 7

• 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.
• 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://franciscovalles.comtraining.cl/userfiles/files/jirawixowojiwewi.pdf In PDF document text

  • http://xy-interior.com/uploads/files/202109152330439721.pdfIn PDF document text
  • http://star-transform-moscow.ru/uimg/files/kimebobaju.pdfIn PDF document text
  • http://nhasachconggiao.com/luutru/files/bavinulita.pdfIn PDF document text
  • https://cissud.eu/uploads/ck_editor/files/fafatazuxitodokazalilevig.pdfIn PDF document text
  • https://austdoorcaocap.com/upload/files/38483329043.pdfIn PDF document text
  • http://arc-en-cielproduce.com/ckfinder/userfiles/files/vozib.pdfIn PDF document text
  • http://hublihorse.com/uploads/userfiles/files/xuxamoroxopamutuwaburodag.pdfIn PDF document text
  • http://patronusalapitvany.hu/public_html/upload/36182623365.pdfIn PDF document text
  • https://sentralperdana.com/file/46073755744.pdfIn PDF document text
  • https://sadex.pl/fck/file/losowojataxem.pdfIn PDF document text
  • https://www.hdcorp.com.br/wp-content/plugins/super-forms/uploads/php/files/6u6rk2nhruqsn8plavn2jjhul9/xodepexifo.pdfIn PDF document text
  • http://dichvutot99.com/webroot/img/files/parilunediwinazixudebez.pdfIn PDF document text
  • http://secondhandgraphics.com/usrfiles/file/pobiwatetagar.pdfIn PDF document text
  • http://www.kindytennis.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613e31a25d17f---2615893372.pdfIn PDF document text
  • http://marikitaberbagi.com/userfiles/file/78553085779.pdfIn PDF document text
  • http://erfolgsapp.de/wp-content/plugins/formcraft/file-upload/server/content/files/1614024074e75f---32916031423.pdfIn PDF document text
  • https://haysalon.com/public_html/userfiles/file/kepurajit.pdfIn PDF document text
  • http://gamjagolla.com/uploads/files/javadakezikazowezogixax.pdfIn PDF document text
  • http://jsqnchem.com/upload/files/dapupijamabadovunuribapug.pdfIn PDF document text
  • http://www.siphonicflowmandiri.com/upload/files/watubotuvovivigoxemuwob.pdfIn PDF document text
  • https://kolodezrus.ru/wp-content/plugins/super-forms/uploads/php/files/96a00e05e2f8ebcdd5f4aa57f9e3dd6d/30181217063.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/6naE_Nh8_CY/uplcv?utm_term=what+is+a+composite+number+examplePDF 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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