Malicious PDF — malware analysis report

Static analysis result for SHA-256 268a13981bd28b03…

MALICIOUS

PDF

57.4 KB Created: 2021-05-27 18:56:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: df7b6f65c13c6ffc39be61e416a10ea1 SHA-1: d97ef1f07fc8152661f217393cc9fc029fdfe5a5 SHA-256: 268a13981bd28b03900c0c1e886cd3d5291c67a29f2504bd0c17ff262412d197
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains numerous links to compromised WordPress upload directories, indicating a link farm designed to host malicious content. The ClamAV detection and ML classifier further support its malicious nature. While no scripts were explicitly extracted, the structure suggests it's designed to redirect users to potentially malicious sites, likely for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6956

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://veronicanealhome.com/wp-content/plugins/formcraft/file-upload/server/content/files/2/1609c6588942dd---85504603489.pdf
    • http://protech.com.ng/wp-content/plugins/formcraft/file-upload/server/content/files/1609b5d13d3eb3---52469659323.pdf
    • http://eduomania.com/wp-content/plugins/formcraft/file-upload/server/content/files/160afa2620ec15---45123662278.pdf
    • https://www.sabiamente.es/wp-content/plugins/formcraft/file-upload/server/content/files/1607e4a24476f3---jajudavu.pdf
    • https://www.mercedesbenzofaustinservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a2bb7723328---65473067103.pdf
    • http://for-rent-antwerp.com/wp-content/plugins/formcraft/file-upload/server/content/files/16071d28abe91f---53819340944.pdf
    • https://lashmakerpro.it/wp-content/plugins/super-forms/uploads/php/files/cio715m56ibe8gq6f6pct66ot1/51023390781.pdf
    • https://www.taxiserviceh24.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609eac2ccdcca---15519984855.pdf
    • https://alice-immo.com/userfiles/file/7441256347.pdf
    • https://t4g.nasscomfoundation.org/wp-content/plugins/super-forms/uploads/php/files/mtofvkkri7b8nb7480qvn3j4u3/77419670395.pdf
    • http://bochosushi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16079eff81565f---kogivipanebedapulesad.pdf
    • http://shinserviceodi.ru/wp-content/plugins/super-forms/uploads/php/files/7feb19f2592e55db521e0aeec928a3c4/dovinosewunavomotuko.pdf
    • https://imagebeaute.fr/userfiles/file/jujofotapofetomizivuzewa.pdf
    • http://sciencevier.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608497441f1c6---59707862106.pdf
    • https://camile.vn/wp-content/plugins/super-forms/uploads/php/files/7k58mu230dogfupk0gfbo95iv8/pozeke.pdf
    • https://feedproxy.google.com/~r/skout/mBVl/~3/YTWXjIUwRh0/uplcv?utm_term=goddess+kiss+ove+equipment+guide

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