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
• Malformed active-content stream length medium PDF_MALFORMED_EXPLOIT_STREAM_LENGTH
  A PDF stream that carries active/exploit-looking content has a declared /Length that does not match the recovered stream body. Malformed stream boundaries and length mismatches are common parser-evasion/supporting evidence around Reader exploit streams.
• 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.
• 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://www.chubsorn.com/file/files/11287090231.pdf In PDF document text

  • https://lordoptika.hu/files/files/pewaxegobepoxujaxoba.pdfIn PDF document text
  • http://galaxyjewel.cn/uploadfile/files/39088993535.pdfIn PDF document text
  • http://mlight.cz/archiv/file/kogewexasujurujukipobaw.pdfIn PDF document text
  • https://pui-vital.ro/msg_media/file/72361379664.pdfIn PDF document text
  • https://bakotech.at/uploads/ckeditor/files/51382679895.pdfIn PDF document text
  • http://sbsinternationalschool.org/userfiles/file/96622880372.pdfIn PDF document text
  • https://talenthunt.biz/userfiles/file/63412384551.pdfIn PDF document text
  • https://ibeguiristain.com/userfiles/files/5554746031.pdfIn PDF document text
  • http://exactblue.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614337a2a7e38---vulor.pdfIn PDF document text
  • http://hotspot-usa.com/js/upload/files/jobunokuvabagugofigaf.pdfIn PDF document text
  • http://gatewayhotelbangkok.com/upfile_hotel/files/8283469461.pdfIn PDF document text
  • http://serting.eu/userfiles/files/lujuseba.pdfIn PDF document text
  • https://jmbarrenetxea.soinuenea.eus/files/galeria/files/25037556525.pdfIn PDF document text
  • https://www.sexualaufklaerung-schule.ch/ck/ckfinder/userfiles/files/xupikasakuvorenupubuxez.pdfIn PDF document text
  • https://provisionsinternational.com/wp-content/plugins/formcraft/file-upload/server/content/files/16147fef383e89---noxesezegiruge.pdfIn PDF document text
  • https://cosmopolitanhotelbg.lastrada.bg/uploads/wysiwyg/files/45650286579.pdfIn PDF document text
  • http://chaukitchen.com/uploads/files/toxowurezokediveretur.pdfIn PDF document text
  • http://wonikquartz.com/upload/editor/file/1630602434.pdfIn PDF document text
  • https://www.l-games.jp/js/ckfinder/userfiles/files/35381413797.pdfIn PDF document text
  • https://appchecar.com/ckfinder/userfiles/files/9602467827.pdfIn PDF document text
  • http://mesotects.com/wp-content/plugins/formcraft/file-upload/server/content/files/16137c273d9370---buxilizonokajivojisole.pdfIn PDF document text
  • https://transilvaniafishing.ro/app/webroot/files/userfiles/files/44197109858.pdfIn PDF document text
  • http://epicridesnepal.com/files/fimulimigafagajatavegolo.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BvfzZFkJO3s/uplcv?utm_term=hack+dragon+city+99+999+gems+2021PDF 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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