Malicious PDF — malware analysis report

Heuristics 8

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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.
• 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 https://wastran.ru/uplcv?utm_term=how+to+change+android+system+language PDF link annotation

  • https://ljlconst.com/admin/images/file/91314674944.pdfIn PDF document text
  • https://lawtutors.co.uk/js/ckfinder/userfiles/files/tosigisolebokolemilefanem.pdfIn PDF document text
  • http://texinpack.com/uploadfile/file///2021091615583119.pdfIn PDF document text
  • http://ceramicaartisticamarsalese.it/userfiles/files/jexepilesosolomobus.pdfIn PDF document text
  • https://shinyjewellers.com/wp-content/plugins/super-forms/uploads/php/files/sru8fbollq3llpmdprnm2lbln8/dudivizajor.pdfIn PDF document text
  • https://sirikulsteel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613fa10e55167---foxixavug.pdfIn PDF document text
  • https://adiwirawanbali.com/wp-content/plugins/super-forms/uploads/php/files/00388d5c100c88fedc3aef199ac3a1c7/gamejojazagiluwofek.pdfIn PDF document text
  • https://bdata.vn/upload/files/38206819584.pdfIn PDF document text
  • https://www.tonygssoulfood.com/wp-content/plugins/super-forms/uploads/php/files/14259149df4e5d1216845d2f38878389/lidinakokiwejalupolunuw.pdfIn PDF document text
  • https://szabobuszrendeles.hu/files/files/66295377552.pdfIn PDF document text
  • http://www.kickcommerce.com/userfiles/file/95865267614.pdfIn PDF document text
  • http://trubaopt.ru/content/file/51195486083.pdfIn PDF document text
  • http://kaies.net/upfiles/21090619034334606047v7tr.pdfIn PDF document text
  • https://kaowei.tw/image/files/20210914_183203.pdfIn PDF document text
  • http://farmandari-sarvestan.ir/images/news/files/dukezudebemoxu.pdfIn PDF document text
  • https://dentalrud.com/userfiles/file/50876189499.pdfIn PDF document text
  • http://bettaletroom.com/file_media/file_image/file/sonejakabizifipotixetosa.pdfIn PDF document text
  • https://apc-algercentre.dz/ckfinder/userfiles/files/pelukesejux.pdfIn PDF document text
  • http://langmoon.jp/js/upload/files/xojibemewekasazepakowexo.pdfIn PDF document text
  • http://accurateverdicts.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612efaa2bf30f---bovusofazololel.pdfIn PDF document text
  • https://stallion-international.com/userfiles/file/bokamisazebigokulufovafu.pdfIn PDF document text
  • http://winhazel.com/indigo/ckfinder/userfiles/files/88062614226.pdfIn PDF document text
  • http://lisahyatthealth.com/wp-content/plugins/formcraft/file-upload/server/content/files/16147beb1351d0---disaf.pdfIn PDF document text
  • http://afslab.asia/upload/files/34510115458.pdfIn PDF document text
  • http://charmingcurls.se/upload/file/buwegizimikuligugunila.pdfIn PDF document text
  • http://www.hptindia.com/wp-content/plugins/formcraft/file-upload/server/content/files/161476995794f8---ribozazufupebojama.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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