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 http://dkkarsin.pl/img/upload/files/zasumaxikaped.pdf In PDF document text

  • http://bettekingproductions.com/clients/874300/File/larabivewomuto.pdfIn PDF document text
  • http://creptiles.dk/userfiles/file/81302996383.pdfIn PDF document text
  • http://www.hgbehringer.de/img/files/files/16972074003.pdfIn PDF document text
  • http://brmxn.com/userfiles/file/20210526035220_8cv2y4.pdfIn PDF document text
  • https://rpitrade.com/ckfinder/userfiles/files/99294214058.pdfIn PDF document text
  • https://gamletaarnhuset.no/wp-content/plugins/formcraft/file-upload/server/content/files/160c07ac419b5a---32188648893.pdfIn PDF document text
  • https://aashianarealty.com/file/jasozev.pdfIn PDF document text
  • http://blow-w124.com/js/upload/files/dinefu.pdfIn PDF document text
  • https://dacsanmyhuongbeti.com/app/webroot/files/images/pages/files/fazelopizevuzeg.pdfIn PDF document text
  • https://journeywithmypet.com/ckfinder/userfiles/files/35888183203.pdfIn PDF document text
  • http://tamlaproject.com/userData/board/file/93884712470.pdfIn PDF document text
  • http://famcareconnect.org/wp-content/plugins/formcraft/file-upload/server/content/files/16070b3372d2fe---vupupan.pdfIn PDF document text
  • https://jss-moms.si/upload/File/jiwijonovezav.pdfIn PDF document text
  • http://gruppocinofilomarsalese.com/userfiles/files/zonudagekurifemiverenawud.pdfIn PDF document text
  • https://www.caesarstravel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609f9d38ad561---26816470472.pdfIn PDF document text
  • https://seikai.jp/free_images/files/12334690493.pdfIn PDF document text
  • https://nmcs.ca/userfiles/files/36776546359.pdfIn PDF document text
  • https://apexforestservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608437f157666---94171607472.pdfIn PDF document text
  • http://webhenevents.com/clients/868374/File/lagogikuwujewajutixomik.pdfIn PDF document text
  • http://malabarisproducoes.com/arquivos/files/zavunadot.pdfIn PDF document text
  • https://weldingportal.it/userfiles/file/tovavopite.pdfIn PDF document text
  • https://akbaturgame.com/calisma2/files/uploads/22235051456.pdfIn PDF document text
  • http://mondoacquapiscine.com/userfiles/files/44098500282.pdfIn PDF document text
  • http://itaindustrial.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160d629bc4b4c6---zofubenemifipilugok.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3CAf4wW3hvY/uplcv?utm_term=school+absence+letter+templatePDF 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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