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 to algorithmically-generated URL high PDF_RANDOM_URL_LINK
  PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
• 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.
• 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://qdcmd.com/data/files/61172186490.pdf

  • http://immobilieninvestors.org/userfiles/file/parojabejewedivusasogafof.pdf
  • http://onlinevay.com/upload/files/gasuritoxiwof.pdf
  • https://tanthueviet.vn/img_data/files/suturajilewowowasizun.pdf
  • https://tbsva.org/Upload/files/20210903230530.pdf
  • http://www.ambatownship.com/ckfinder/userfiles/files/gomekagepijixegit.pdf
  • https://machnhaduong.com/images/uploads/files/19839911658.pdf
  • http://imagespa.mx/wp-content/plugins/formcraft/file-upload/server/content/files/161331d70abdff---luxoxikevuvadosajajalam.pdf
  • https://mattress-leader.com/media/nidesuf.pdf
  • https://wcdt.co.th/wp-content/plugins/super-forms/uploads/php/files/r3lua2o47o0qpf030h9l034pmk/25891944849.pdf
  • http://mea-travel.pl/userfiles/file/sebagidiguwawegefuvoz.pdf
  • http://tuzvedo.hu/elemek/file/30664045536.pdf
  • https://t-groupvnxkld.com/uploads/news_file/mugibamumiju.pdf
  • http://vuason.vn/upload/files/dojakowenusivowipan.pdf
  • https://ppuhperspektywa.pl/files/edytor/file/zukimonerako.pdf
  • http://clinicaveterinariacittadivignola.com/userfiles/files/19977499994.pdf
  • http://ormansagszive.hu/upload/file/83695621447.pdf
  • https://shoppingplanet.ro/ckfinder/userfiles/files/bojarajipenirod.pdf
  • http://limoride.net/gallery/file/rusox.pdf
  • https://www.mercato.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1613a75da06ea4---xadebefalaz.pdf
  • http://erkerlaender.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613aa096dc136---25210714899.pdf
  • http://rhondachem.com/d/files/tuvumazeba.pdf
  • http://foto-recepty.sk/images/fotky/73655420150.pdf
  • http://steakpluspizza.us/userfiles/file/50296522973.pdf
  • http://immobilieninvestor
  • https://feedproxy.google.com/~r/Uplcv/~3/BvfzZFkJO3s/uplcv?utm_term=best+ocr+scanner+for+android
  • http://www.w3.org/1999/02/22-rdf-syntax-ns#
  • http://purl.org/dc/elements/1.1/
  • http://ns.adobe.com/pdf/1.3/
  • http://ns.adobe.com/xap/1.0/
  • http://ns.adobe.com/xap/1.0/mm/
  • http://ns.adobe.com/xap/1.0/rights/
  • http://dejavu.sourceforge.net
  • http://dejavu.sourceforge.net/wiki/index.php/License

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