Malicious PDF — malware analysis report

Static analysis result for SHA-256 f00fd7d2f488fa39…

MALICIOUS

PDF

139.6 KB Created: 2021-06-21 08:44:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4f9d43db73b7a4deac6aa907dd93806b SHA-1: 847f55ad81a86c893d3db9c7ec9e36fef7001f97 SHA-256: f00fd7d2f488fa393ec69be6b55b5a4c9e30f28173f85a3a68f70a1152033914
154 Risk Score

Malware Insights

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

The sample is identified as malicious by ClamAV and an ML classifier, with heuristics indicating it functions as a link farm. It contains numerous URLs pointing to compromised WordPress sites, suggesting a phishing or malware distribution scheme. The PDF's structure and embedded links are designed to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9855

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://formapolis.it/wp-content/plugins/super-forms/uploads/php/files/81ebaa791e4822a5fd6010166036f36d/doraduvozojigonisodorarix.pdf
    • http://xn--90ad5ackt1d.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/eb5f199e1af458af2452cfcbb5edd396/sufebikaxozirimipavamozaj.pdf
    • https://ecobox.eng.br/wp-content/plugins/super-forms/uploads/php/files/7sa24dh83a4t1r2g88o5jvr9tr/12880268091.pdf
    • http://xn--12cm8caae5d9a0a0a1dxk6dd.com/user_img/files/31753693697.pdf
    • https://www.lang-mayer.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608888d466908---kezifatolutefitobeviga.pdf
    • http://www.suffaheducation.com/wp-content/plugins/formcraft/file-upload/server/content/files/160acc9df62fc5---68050964769.pdf
    • http://kokocurry.gm/userfiles/file/17906534216.pdf
    • http://vasilii-orlov.fun/wp-content/plugins/super-forms/uploads/php/files/479c4594b9d9dc5e1de2db9e0cd59160/sipowezogemomebusuvix.pdf
    • https://www.projectorrentals.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bb00b8ae5cd---44952019634.pdf
    • https://www.jahnigterbraak.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160ab6d4bd0bc5---45630099956.pdf
    • https://www.beewellrx.com/wp-content/plugins/super-forms/uploads/php/files/tmp/maforebaxew.pdf
    • http://www.realisthotel.com/wp-content/plugins/formcraft/file-upload/server/content/files/16085be8886fc2---80221250697.pdf
    • http://audiomaster.se/wp-content/plugins/formcraft/file-upload/server/content/files/16085433f7b3fd---77754721786.pdf
    • https://advancedcheckcashadvance.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a6d86fbca4c---55331125183.pdf
    • https://patriot.ch/wp-content/plugins/super-forms/uploads/php/files/keq5l6j8f43iu2qk9bp1u5jng2/81197074625.pdf
    • http://bakoca.hu/files/file/28752942131.pdf
    • https://www.isgs.org/wp-content/plugins/super-forms/uploads/php/files/b65481316c1796cbd7388996e6b21cbe/19603225202.pdf
    • https://feedproxy.google.com/~r/skout/mBVl/~3/BvfzZFkJO3s/uplcv?utm_term=warframe+driver+crash