Malicious PDF — malware analysis report

Static analysis result for SHA-256 382e006e7dd45843…

MALICIOUS

PDF

56.3 KB Created: 2021-09-12 03:04:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 68c736a9dc769216f83adf1a90ba2939 SHA-1: 438f4bb6c54936bea18d45f84f41dcf8ffb91142 SHA-256: 382e006e7dd458432c691c6db6959b63555eda92976d60110b908855e8e9106c
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was detected as malicious by ClamAV and ML classifiers. It contains numerous external links, many pointing to compromised CMS upload directories, suggesting a phishing or malware distribution attempt. The presence of embedded URLs and the nature of the heuristics indicate that the PDF is designed to redirect users to potentially harmful external sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5046

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
  • 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
  • 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://allytemp.ru/uplcv?utm_term=how+to+sync+phone+and+tablet
    • https://n95america.com/wp-content/plugins/super-forms/uploads/php/files/8fafdf19bebe840c438fab73c86ea97e/gopudamot.pdf
    • https://naseeha.org/wp-content/plugins/super-forms/uploads/php/files/5f534c18d8ad02dffc1cc21fff552811/35078254247.pdf
    • http://tbff-bygg.se/img/files/zineselojezexisa.pdf
    • http://techbico.vn/uploads/image/files/532989121.pdf
    • http://tungalag.mn/userfiles/files/kuwegexupoxemab.pdf
    • https://ontech.vn/images/ckeditor/files/fadarepomavolivufilamafof.pdf
    • http://balashixa.inhome360.ru/admin/ckfinder/userfiles/files/desegolidokezo.pdf
    • http://ksnjl.com/userfiles/files/rosalupis.pdf
    • https://calendarsunrooms.com/userfiles/files/jusizimu.pdf
    • http://mingzhicc.com/userfiles/files/24626651994.pdf
    • https://auf.vn/wp-content/plugins/super-forms/uploads/php/files/cul4r5pmengg8m6jk7dlek0bg0/piginam.pdf
    • https://eseninternational.com/uploads/files/jokosufopetev.pdf
    • http://tycoonmedical.com/userfiles/file/63388125483.pdf
    • http://3e-recycling.ru/app/webroot/filesfiles/kimadawudoxorutegedipot.pdf
    • http://www.anjhimayath.com/upload/file/36585863759.pdf
    • https://stancijanegrin.com/UserFiles/files/67533830012.pdf
    • https://investkwik.com/userfiles/file/xupejotosepedopewu.pdf
    • http://seoulgreeter.com/userData/board/file/59303786037.pdf
    • http://www.auditsi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613266e148d83---41061808269.pdf
    • http://hndgyl.com/v15/Upload/file/2021911194816674.pdf
    • http://shopcode.ru/uploads/file/piwenonuboxabapidu.pdf
    • http://alhambra.kopanramen.com/uploads/files/xujavegojolagisajukewiz.pdf
    • http://childconnect.com/swi/fckfiles/file/dasazomi.pdf
    • http://honderhotel.com/UploadFiles/FCKeditor/20210902215303.pdf
    • https://ssmahavidyalaya.org/lion/uploadedfiles/fck/files/file/fifojixatuw.pdf

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