Malicious PDF — malware analysis report

Static analysis result for SHA-256 00f9e311c75417b2…

MALICIOUS

PDF

48.0 KB Created: 2021-09-26 03:26:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-24
MD5: 05cc39bdb4e7e8756f54389fd6719da3 SHA-1: ec20c9f0dfa0d0c6db0046841dd20977d4109c59 SHA-256: 00f9e311c75417b2b54e9ccc5300c2e167b1fef0eb294ad51c86bb0f87cbe0e9
140 Risk Score

Malware Insights

MITRE ATT&CK
T1059.007 JavaScript T1566.001 Spearphishing Attachment

The PDF contains embedded JavaScript, which is often used to exploit vulnerabilities or redirect users to malicious sites. The presence of numerous links, many pointing to unknown PDF files, strongly suggests a phishing or malware distribution attempt. The ML classifier and ClamAV detection further support the malicious nature of this file.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8402

Heuristics 6

  • 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.
  • JavaScript action low 1 related finding PDF_JAVASCRIPT
    PDF contains a /JavaScript action. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://schreinerheusi.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613ca2b4b615d---51103810997.pdf In PDF document text
    • http://oilmachineydy.com/d/files/39125004337.pdfIn PDF document text
    • http://friend5190.xyz/js/ckfinder/userfiles/files/vekal.pdfIn PDF document text
    • http://nissanotogovap.net/uploads/images/files/9925349670.pdfIn PDF document text
    • http://gurgaontaxi.com/pa/trainstation/uploads/image/file/10586478977.pdfIn PDF document text
    • http://trevelsi.ru/ckfinder/userfiles/files/83076472650.pdfIn PDF document text
    • http://aokisuper.com/ckfinder/userfiles/files/zavakoxenuneloxo.pdfIn PDF document text
    • http://www.hausman.eu/images/wyswig_images/file/2715488113.pdfIn PDF document text
    • http://suachuamaydemtien.biz/userfiles/file/fuzolumuburodiwujimozor.pdfIn PDF document text
    • https://rugsinc.in/UserFiles/files/5226951077.pdfIn PDF document text
    • http://cadelupo.it/userfiles/files/27090552205.pdfIn PDF document text
    • https://vietrocknet.org/app/webroot/img/files/denawiwigalasikivo.pdfIn PDF document text
    • https://theurbanthinktank.com/files/87628653575.pdfIn PDF document text
    • http://jessie.vn/images/ckeditor/files/75170872769.pdfIn PDF document text
    • http://fundacjaproartis.pl/javascript/ckfinder/userfiles/files/lopivesezomuvu.pdfIn PDF document text
    • http://artgrafika.cz/userfiles/file/xapitatomix.pdfIn PDF document text
    • https://advicezone.org.uk/wp-content/plugins/super-forms/uploads/php/files/svfsn882b5dd7tl545oki7th0c/12951621499.pdfIn PDF document text
    • http://yizhu580.com/ckfinder/userfiles/files/2769942933.pdfIn PDF document text
    • http://personnelstrategies.net/userfiles/file/nerolajapuzatut.pdfIn PDF document text
    • https://loyd.rs/images/file/30933741110.pdfIn PDF document text
    • http://paitoonbox.com/userfiles/files/kutekuxovaloz.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/S30rS-6n6vg/uplcv?utm_term=public+transport+simulator+coach+mod+apkPDF link annotation