Malicious PDF — malware analysis report

Static analysis result for SHA-256 7407908fe7cb0391…

MALICIOUS

PDF

74.9 KB Created: 2021-05-06 03:00:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: feac113b46b9132c2d5aed039572b68b SHA-1: 02315cc2376a3ddb3dea8bea70b59a7e2f34ed13 SHA-256: 7407908fe7cb0391f4e4d0b60df808eef1d61d8df927b5da13d3a0ff1dd37070
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links to external websites, many hosted on compromised CMS platforms, indicating a link farm designed to redirect users to potentially malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware distribution. No scripts were extracted, but the PDF structure and embedded URLs point to a common tactic of using compromised sites to host malicious documents.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8403

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://www.webplease.it/wp-content/plugins/super-forms/uploads/php/files/v5rjuj19jm3tcukdeqpg6nq8m8/43673978326.pdf
    • https://portsidestrategies.com/wp-content/plugins/super-forms/uploads/php/files/632f2d8a466c6c45b1f65302ab583a97/wimadilavatemovovaka.pdf
    • https://healthcareadvisorsgroup.com/wp-content/plugins/super-forms/uploads/php/files/el752347o7kmho4p9mbs1df5t6/76117461749.pdf
    • https://www.napariverinn.com/wp-content/plugins/super-forms/uploads/php/files/876066f1ea248ddbc13ded0c47f51bf2/82936584385.pdf
    • https://www.cittadelmiele.it/wp-content/plugins/super-forms/uploads/php/files/f85fe987e2efb42449f9b83320694dd7/71976595053.pdf
    • http://www.birapart.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d826355133---filopurigazazevarap.pdf
    • http://www.holzbau-hoelzl.at/wp-content/plugins/formcraft/file-upload/server/content/files/1607ea584312ca---9319761451.pdf
    • https://amatnieks.com/pictures/image/xiraselo.pdf
    • https://malimbe.africa/wp-content/plugins/super-forms/uploads/php/files/d1cb54e148105228ad5192db8b6b559f/95515487991.pdf
    • https://pluviaterra.mx/wp-content/plugins/super-forms/uploads/php/files/f27a413f8590f128f8beba3377a31221/devewatusi.pdf
    • https://impariant-club.ru/wp-content/plugins/super-forms/uploads/php/files/182125c3c9f27472b7201dc5d555b7ff/28055690556.pdf
    • http://digimaap.com/wp-content/plugins/super-forms/uploads/php/files/8d8bodv1n9kof8o5ofrr10e4r3/dubademozo.pdf
    • https://alfa-pechati.ru/wp-content/plugins/super-forms/uploads/php/files/8cdd40b1a78f005f933422679419b60e/47608848408.pdf
    • http://alibabashipping.com/userfiles/file/fizopi.pdf
    • https://autoschiller.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608d1c2ae7db2---woboxa.pdf
    • https://militarynetwork.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1607de1a974e49---41987836800.pdf
    • https://pankalconstructora.com/wp-content/plugins/formcraft/file-upload/server/content/files/160870b289ba08---loramajetokelasedeme.pdf
    • https://feedproxy.google.com/~r/skout/mBVl/~3/ngfLrbzwjls/uplcv?utm_term=citra+emulator+android+cheats

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