Malicious PDF — malware analysis report

Static analysis result for SHA-256 355c417bfb46848b…

MALICIOUS

PDF

56.8 KB Created: 2021-09-20 19:53:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-22
MD5: 2d564538b121fd4aef00ab2195d1e726 SHA-1: 01a8b98850c08e0dccc943726ecb2664e805d394 SHA-256: 355c417bfb46848ba26eb186440b3105d1b6835697d8340042f918ad3562e0fe
132 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded JavaScript and a large number of external URIs, many of which point to disposable domains. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to redirect users to phishing sites or download further malware. The embedded JavaScript is a common technique for executing malicious code within PDF documents.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7557

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 http://michelesherrinlaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/rijepotuna.pdf In PDF document text
    • https://mobilaide.com/upload/editor/file/29286406930.pdfIn PDF document text
    • http://swaptoys.org/ckeditor/uploads/files/regixowuvojupubarotizifaz.pdfIn PDF document text
    • http://www.thegrcinstitute.org/app/webroot/js/ckfinder/userfiles/files/50927662885.pdfIn PDF document text
    • http://sten.kr/club/data/userfiles/file/20210911113055.pdfIn PDF document text
    • http://nissanotogovap.com/uploads/images/files/54140660394.pdfIn PDF document text
    • http://darstin.com/userfiles/files/kekowilagigalemonomax.pdfIn PDF document text
    • http://longarmquiltacademy.net/fckeditor/userfiles/file/donamitobagebapup.pdfIn PDF document text
    • http://champaigncursillo.com/userfiles/file/rubatijip.pdfIn PDF document text
    • http://gyogytornasziget.hu/uploads/files/36692435701.pdfIn PDF document text
    • https://www.breastcancerfoundation.in/wp-content/plugins/super-forms/uploads/php/files/31dea482c59b6a20650633791df208be/74942857548.pdfIn PDF document text
    • http://traktor-tv.de/sites/default/files/file/totoxolixuzur.pdfIn PDF document text
    • https://epagneuls-bretons.fr/caningest/images/file/44161168533.pdfIn PDF document text
    • http://banglenhospital.com/UserFiles/File/temejopesoporike.pdfIn PDF document text
    • http://aromamahabaleshwar.com/ckfinder/userfiles/files/99248670841.pdfIn PDF document text
    • https://movie2book.com/userfiles/file/vixiwajibewujij.pdfIn PDF document text
    • http://zzps.pl/userfiles/file/37359602491.pdfIn PDF document text
    • http://cyc.cz/pictures/clanky/files/kemamibela.pdfIn PDF document text
    • https://denizlihorozu.com/resimler/files/57289426054.pdfIn PDF document text
    • http://flapboxes.com/userfiles/files/79094636065.pdfIn PDF document text
    • http://halongbaycruises.org/upload/files/vomimuzofogezonize.pdfIn PDF document text
    • http://saipanbooking.com/FileData/ckfinder/files/20210916_54E47964E34672D9.pdfIn PDF document text
    • https://viscom.bg/uploads/wysiwyg/files/44300496626.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/BvfzZFkJO3s/uplcv?utm_term=watch+online+indian+movies+downloadPDF link annotation

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