Malicious PDF — malware analysis report

Static analysis result for SHA-256 699e33377d551220…

MALICIOUS

PDF

47.0 KB Created: 2021-06-21 14:11:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 01d96626bb24dd5514c3ea786061b926 SHA-1: e1e3577994a880506283d739deaa1566809c14f5 SHA-256: 699e33377d551220fdd08acfb5fc1b6a7520a9d63654f8c86dc620e30522a188
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The sample is a PDF document flagged by ML classifiers and ClamAV as malicious. It contains numerous links, many pointing to compromised CMS upload directories, suggesting a phishing or malware distribution scheme. The document body is heavily obfuscated and contains no discernible user-facing content, reinforcing the malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9498

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 http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bdb1cfa8263---xomelaxuxevawilaliv.pdf
    • https://www.zulilighting.com/wp-content/plugins/super-forms/uploads/php/files/09d57d4c9131e62b063bdef61cc25471/28799516519.pdf
    • http://www.sensible-seeds-premium.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a9600eab1f3---27823166428.pdf
    • https://amiablediamonds.com/wp-content/plugins/super-forms/uploads/php/files/84768e1dbd0fdcb2f16c7590b6bebfb8/23331824025.pdf
    • https://provisionsinternational.com/wp-content/plugins/formcraft/file-upload/server/content/files/16078c411c93cb---75019303470.pdf
    • http://atlantichomeportugal.com/wp-content/plugins/formcraft/file-upload/server/content/files/160763bef8b662---72335085685.pdf
    • https://orkhaconstruction.com/wp-content/plugins/super-forms/uploads/php/files/av8pln465qsojhelr9nrrodnhk/retutitexejaromubar.pdf
    • https://office-agglo-larochelle.fr/userfiles/file/49936182316.pdf
    • http://conblocmanado.com/pics/file/133548221.pdf
    • https://home18.ru/wp-content/plugins/super-forms/uploads/php/files/bcd4c35784caee0be56f421f044fd847/xogafatutavonu.pdf
    • http://www.sunargrup.com.tr/wp-content/plugins/super-forms/uploads/php/files/kkc4gf16jks5h2jh69nkdnsoj1/61703999795.pdf
    • https://alamansyria.com/userfiles/file/dilubabimukiroserudifuw.pdf
    • http://eventcompany.org/clients/e/e3/e30ef11cf4efe639fe6592aa37b9cb94/File/35939089904.pdf
    • http://www.absolutecateringla.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b187c8484f4---mofiwojel.pdf
    • http://project-lovcen.me/userfiles/file/62916402190.pdf
    • http://www.telsercom.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083de441e7d4---tarigoraludenujoxeti.pdf
    • https://feedproxy.google.com/~r/Uplcv/~3/zMnd8XtcwSM/uplcv?utm_term=subject+pronouns+test

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