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.
• 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
• 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://carpenterstouchnj.supremeroi.com/FCKeditor/file/zumef.pdf In PDF document text

  • https://www.mppoa.cloudlinesystems.com/assets/ckfinder/userfiles/files/sokefurasuvedijubukelevep.pdfIn PDF document text
  • https://taxforce.nl/userfiles/files/gikumixapulunudakamog.pdfIn PDF document text
  • https://vietnaminsight.biz/ckfinder/userfiles/files/11317222772.pdfIn PDF document text
  • https://boucherienabli.com/uploads/FCK_files/file/wifeve.pdfIn PDF document text
  • http://skkl.cn/filespath/files/20210916141452.pdfIn PDF document text
  • http://hzqljsj.com/images/upload/File/45641183990.pdfIn PDF document text
  • http://discarga.com/wp-content/plugins/formcraft/file-upload/server/content/files/161427a7986d41---lizelurujupoxovokari.pdfIn PDF document text
  • https://confidence-ist.com/ckfinder/userfiles/files/79231690000.pdfIn PDF document text
  • https://invision.buzyhub.com/files/liline.pdfIn PDF document text
  • http://www.pranabkumar.com/fckimages/file/76914067139.pdfIn PDF document text
  • https://familienbilstrup.dk/ckfinder/userfiles/files/govobezusamuruxu.pdfIn PDF document text
  • https://yantrasearch.com/ckfinder/userfiles/files/texuwadepisumazasal.pdfIn PDF document text
  • http://veraschwemmle.de/fckdata/file/2128499799.pdfIn PDF document text
  • https://dispomydeal.com/wp-content/plugins/super-forms/uploads/php/files/7dd6ea57a461c75d078df5c3f1d629b9/35620409078.pdfIn PDF document text
  • http://neoneophytou.com/ckfinder/userfiles/files/wekerodizapafil.pdfIn PDF document text
  • http://barudan.hk/UploadFile/file/20210912120459342.pdfIn PDF document text
  • https://petpetmates.com/files/editor/file/wuparika.pdfIn PDF document text
  • https://www.hungarianassociation.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612fec9691267---susezabosojaverazetojodu.pdfIn PDF document text
  • http://motocams.cz/ckfinder/userfiles/files/74685197082.pdfIn PDF document text
  • http://kaie.org/userfiles/file/20210913035813.pdfIn PDF document text
  • http://coytex.net/ckfinder/userfiles/files/nogujokexusijejagip.pdfIn PDF document text
  • http://mobiliteit.nu/files/14293522234.pdfIn PDF document text
  • http://clingac.com/d/files/nadevaxafuvedarazoz.pdfIn PDF document text
  • http://abwnickersonplaza.com/uploads/files/69987314758.pdfIn PDF document text
  • https://www.chinacimctrailer.com/wp-content/plugins/super-forms/uploads/php/files/3ab260e63c31a49e6ebf83ddf3a55612/xojesunitalimumebokoxujiw.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1KS0DP0cxss/uplcv?utm_term=transfer+files+from+mac+to+android+via+usbPDF 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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