Malicious PDF — malware analysis report

Static analysis result for SHA-256 debe8d62e1ba227d…

MALICIOUS

PDF

49.4 KB Created: 2021-09-18 06:54:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-27
MD5: 65fb659356bd4b7eea261dff664e077b SHA-1: 39be71b65166db428e8f1b0fccd9cca2a07d0b97 SHA-256: debe8d62e1ba227db169d9c60adda095d3c9ee36826b8e1b2e79fe69cab72835
132 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The sample is a PDF containing embedded JavaScript, which is often used to redirect users to malicious websites. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic indicates the document is structured as a link farm on disposable hosting, suggesting a phishing or malware distribution attempt. ClamAV also detected this file as Pdf.Phishing.Trojan.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8963

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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
  • 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://mayersoffice.com/userfiles/file/musabalojakaz.pdf In PDF document text
    • http://finance-bulldog.cz/UserFiles/File/38329405444.pdfIn PDF document text
    • http://daiichibus.vn/uploads/news_file/13937175835.pdfIn PDF document text
    • https://jsptti.com/ckeditor/ckfinder/userfiles/files/55373974901.pdfIn PDF document text
    • https://hophamthaibinh.com/upload/files/31497090706.pdfIn PDF document text
    • https://bocion.com/ckfinder/userfiles/files/zugumebavafevofijagewavev.pdfIn PDF document text
    • https://xrtradingfeedback.com/cmsimages/file/zedidij.pdfIn PDF document text
    • http://sh8ke.com/wp-content/plugins/formcraft/file-upload/server/content/files/16140cdf7014fe---85809134474.pdfIn PDF document text
    • https://gtsonline.nl/wp-content/plugins/super-forms/uploads/php/files/5ptor163hlharc077grqtu3er5/1010423604.pdfIn PDF document text
    • https://vivekanandbawwa.com/userfiles/file/gekitifi.pdfIn PDF document text
    • https://memorybg.net/app/templates/js/ckfinder/userfiles/files/legetukisuxuze.pdfIn PDF document text
    • http://kaitosushisb.com/uploads/files/64568451163.pdfIn PDF document text
    • https://giraffeng.net/infodaily/gen-ckfinder/userfiles/files/tulukazube.pdfIn PDF document text
    • https://clinicamanila.com/ckfinder/userfiles/files/sixupemegaretinetu.pdfIn PDF document text
    • http://dharmapuridiocese.com/svnprojects/DHD/Source/images/files/68201822995.pdfIn PDF document text
    • http://londonjip.com/userData/board/file/monila.pdfIn PDF document text
    • http://homestationrealty.com/userfiles/files/nopazexejubiriputit.pdfIn PDF document text
    • https://takipcisec.com/calisma2/files/uploads/2724060476.pdfIn PDF document text
    • http://jedwines.com/cmsCart/upload/file/jugubusetos.pdfIn PDF document text
    • https://powermailer.in/userfiles/file/60435619467.pdfIn PDF document text
    • http://leguido.net/files/gidemibabanasata.pdfIn PDF document text
    • http://vitalenzyme.com/uploads/fckupload/file/valufuwul.pdfIn PDF document text
    • http://webinaris.biz/ckfinder/userfiles/publics/files/14958777210.pdfIn PDF document text
    • https://rkdestate.com/userfiles/file/84580518713.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/1xuhb7AK25c/uplcv?utm_term=redmi+note+9s+pro+price+in+bangladeshPDF link annotation

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