Malicious PDF — malware analysis report

Static analysis result for SHA-256 c2d36fdf64cf6aca…

MALICIOUS

PDF

56.8 KB Created: 2021-07-21 02:03:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-24
MD5: f3a7ff57ef43edd329c5a871562074d3 SHA-1: 6a26b15c6fd505ed15a1b5ab61678926baf21d48 SHA-256: c2d36fdf64cf6acabc4bc28e7e150a2be5ed96e890ed1b058a1288ae7564d706
154 Risk Score

Malware Insights

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

The PDF contains a link farm directing users to multiple compromised WordPress sites, indicating a phishing or malware distribution attempt. The ClamAV detection and ML classifier further support its malicious nature. No scripts were extracted, but the structure strongly suggests a malicious intent to lure users to external, potentially harmful, content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5222

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://mikepromedia.com/wp-content/plugins/super-forms/uploads/php/files/u3tlhnvd4brsbgsbqsh3c4iof6/gasiwimaxuxalurafapuxutub.pdf In PDF document text
    • https://www.hontoys.com.au/wp-content/plugins/super-forms/uploads/php/files/k086prd2r75109cfr4kfu3e9av/fomoduzomebijawarup.pdfIn PDF document text
    • https://1sis.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a1af9eb593e---35619556152.pdfIn PDF document text
    • http://yaqeen-eg.com/userfiles/file/84599298525.pdfIn PDF document text
    • https://cambodiadriverservice.com/userfiles/file/gobaguzapavafawawa.pdfIn PDF document text
    • https://stellabakingcompany.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607cbb749776f---kegipabexave.pdfIn PDF document text
    • http://bhk-aindling.com/userfiles/files/memusiwomaxajexima.pdfIn PDF document text
    • http://k-yoga.org/file_upload/spaw_upload/file/20210528053556.pdfIn PDF document text
    • https://thewaves.net/wp-content/plugins/super-forms/uploads/php/files/rutmmdf135vtqhtjnvemvb6mdi/46418030322.pdfIn PDF document text
    • http://www.iso-clean.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1607e37946ad58---95711738597.pdfIn PDF document text
    • https://www.hit-education.com/wp-content/plugins/super-forms/uploads/php/files/e58kvs86q40efcme935a0qgsqn/lejonibi.pdfIn PDF document text
    • http://ayurveda-shiatsu-nice.com/upload/files/domizifubawakomujelutebuk.pdfIn PDF document text
    • http://www.fattyweng.com.sg/wp-content/plugins/formcraft/file-upload/server/content/files/16079efce81c9c---talenelubig.pdfIn PDF document text
    • http://www.absolutecateringla.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aa0c0f6fcb2---tofuliweneteromatoxa.pdfIn PDF document text
    • https://homini.eu/wp-content/plugins/formcraft/file-upload/server/content/files/1606c6cf4d0b6d---21022291037.pdfIn PDF document text
    • https://agrimal.pl/userfiles/file/sagisosudafanufijufuxa.pdfIn PDF document text
    • http://kistours.hu/userfiles/file/poxebitefevofa.pdfIn PDF document text
    • http://vdgairconditioning.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16084836b27cee---ridobebujabitoge.pdfIn PDF document text
    • http://compie.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160a18391cbc0c---92323912954.pdfIn PDF document text
    • https://wkd-uk.com/wp-content/plugins/super-forms/uploads/php/files/327fb7c3d925e29bf3ecf63d438bd750/volami.pdfIn PDF document text
    • http://ahlhy.com/uploads/file/171549127593.pdfIn PDF document text
    • http://cargo3030.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160755341449f6---25183351729.pdfIn PDF document text
    • http://www.sarajevo-inn-grunewald.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c975765c036---bejezukiwerepo.pdfIn PDF document text
    • http://lifemartrealestateconnect.com/wp-content/plugins/super-forms/uploads/php/files/8tg55hgbndubfk5k6t9tfmfg02/wofed.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/BvfzZFkJO3s/uplcv?utm_term=catching+fire+discussion+questions+tracee+orman+answersPDF link annotation

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