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.
• QR-code redirect lure medium SE_QR_LURE
  Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
• 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://laborke.ru/uplcv?utm_term=5+apps+that+make+you+smarter PDF link annotation

  • https://nhaban24h.com.vn/wp-content/plugins/super-forms/uploads/php/files/upc2adsrge31pftgr203h9i7tm/gujofesakalorawuwazebovul.pdfIn PDF document text
  • https://quangcaowebsite.vn/uploads/files/xejalasopuxanigasazavu.pdfIn PDF document text
  • http://tfh-filter.hu/_user/file/21781664017.pdfIn PDF document text
  • https://hoakhanh.vn/uploads/image/files/12361650231.pdfIn PDF document text
  • http://houselandia.ru/files/fudasadagafenuka.pdfIn PDF document text
  • http://lhsclassof1971.com/clients/74120/File/78798341141.pdfIn PDF document text
  • http://dabien.co.kr/wp-content/plugins/formcraft/file-upload/server/content/files/1606dd0d3b4731---92594045732.pdfIn PDF document text
  • http://computergramm.com/userfiles/file/zubasokudopap.pdfIn PDF document text
  • http://tiszaikaland.hu/upload/file/karogupadeworojamidefo.pdfIn PDF document text
  • http://goodtraefarm.com/ckupload/files/kubabuki.pdfIn PDF document text
  • http://khiconghoixuancong.com/Khicong/admin/userfiles/file/67376331138.pdfIn PDF document text
  • http://danielbushreunion.com/clients/41596/File/sekod.pdfIn PDF document text
  • https://alfa-pechati.ru/wp-content/plugins/super-forms/uploads/php/files/4671c6d588cc02913ca70d7b9aa0d3ef/49862103516.pdfIn PDF document text
  • http://sakirnoopo.ru/wp-content/plugins/super-forms/uploads/php/files/a672a3a2cd957729b245bde1406e6f1b/jegusunuzuvaxazijolavosil.pdfIn PDF document text
  • http://www.altrus.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1607adf73947c1---62976127702.pdfIn PDF document text
  • https://alakharia.com/public_html/userfiles/file/26481976126.pdfIn PDF document text
  • https://mannerfeltdesignteam.se/ckfinder/userfiles/files/joruxubetotevuxeninojog.pdfIn PDF document text
  • http://thm-holding.ru/wp-content/plugins/super-forms/uploads/php/files/129acf4290b5f5c8e88d4c385e546298/49519096630.pdfIn PDF document text
  • https://refundsrefunds.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e3f6841882---70219118315.pdfIn PDF document text
  • https://aterhesseg.com/up_image/file/vafoxire.pdfIn PDF document text
  • https://www.indee-r.fr/wp-content/plugins/super-forms/uploads/php/files/fcfe3f9f758eaffffe73683760bc2011/29236016647.pdfIn PDF document text
  • http://fotossc.pl/_files/file/35180116046.pdfIn PDF document text
  • http://alpinist.store/sribati/editor/uploadfiles/soxisowigalogabirimero.pdfIn PDF document text
  • http://www.marsagri.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609b66c8164e1---61144351826.pdfIn PDF document text
  • http://www.petersmetalstitching.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160f19d3895711---ferib.pdfIn PDF document text
  • http://tortsurprise.ru/upload/redactor/files/mutuwobikosamopa.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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