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
• LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMAND
  Extracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
• 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.
• 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://saothienemb.com/uploads/images/files/14848391478.pdf In PDF document text

  • https://hoangphatdanang.com/uploads/image/files/67288871886.pdfIn PDF document text
  • https://firesystem.ro/imagini_ws/1478147861.pdfIn PDF document text
  • http://bptramptour.pl/files/file/91893310416.pdfIn PDF document text
  • https://fratellifurloni.it/file/89954337388.pdfIn PDF document text
  • https://lufty.cz/UserFiles/files/17359229569.pdfIn PDF document text
  • http://qdcmd.com/data/files/94715624880.pdfIn PDF document text
  • https://0908108108.tw/upfile/files/2021/10/03/49708872122.pdfIn PDF document text
  • https://hahapediatric.com/uploads/files/202109221348103141.pdfIn macro / runtime command snippet
  • http://noithatdangcap.vn/app/webroot/uploads/files/61076894615.pdfIn PDF document text
  • http://alnoorcity.com/userfiles/file/kopowepajemumedokaze.pdfIn PDF document text
  • http://www.dialog-seversk.ru/jsplugins/ckfinder/userfiles/files/36026912297.pdfIn PDF document text
  • http://matrixuniverzum.eu/wp-content/plugins/formcraft/file-upload/server/content/files/1616069da35c6b---27548107258.pdfIn PDF document text
  • http://marienoellebermond.com/img/uploaded/file/dejivakidilum.pdfIn PDF document text
  • http://print-printonline.com/ckfinder/userfiles/files/61202075574.pdfIn PDF document text
  • http://tns-china.cn/editor_upload_image/file/venobebematomi.pdfIn PDF document text
  • https://goooinggroup.com/userfiles/files/20210924_062250.pdfIn PDF document text
  • http://tjtvina.com/Upload/files/pazixegelimolegaki.pdfIn PDF document text
  • http://evola.it/userfiles/files/95532255634.pdfIn PDF document text
  • http://chizclean.ru/files/fck/file/414885833.pdfIn PDF document text
  • http://dh-life.com/ckfinder/userfiles/files/91249132227.pdfIn PDF document text
  • http://dolphinegypt.net/userfiles/file/boselodulite.pdfIn PDF document text
  • http://neodev.space/wp-content/plugins/formcraft/file-upload/server/content/files/161544900b54fb---26902537701.pdfIn PDF document text
  • http://chip-chup.hu/upload/file/boxerodak.pdfIn PDF document text
  • https://0908108108.tw/upfIn macro / runtime command snippet
  • https://feedproxy.google.com/~r/Gsjc/~3/u-9XGpgKpwY/uplcv?utm_term=dissent+in+sentencePDF link annotation
  • http://kioskcondoweb.wpengine.com/wp-content/plugins/formcraft/file-upload/server/content/files/161583a9b624cb---13532630113.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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