Malicious PDF — malware analysis report

Static analysis result for SHA-256 617555b54b8828d7…

MALICIOUS

PDF

45.8 KB Created: 2021-08-16 20:16:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-24
MD5: 10a228265c384f8d6544ebf40c872f41 SHA-1: bc0deed861609358077562f3791133503ef14688 SHA-256: 617555b54b8828d7ad27ee09a7733da7a4d723cc8a3622db2a1f7e03b80c0086
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating it likely contains malicious content. It functions as a link farm, presenting numerous URLs that lead to external sites, some of which are hosted on compromised WordPress installations. The presence of these links suggests an attempt to redirect users to phishing pages or download further malicious payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7205

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 http://spearsyounglegacy.com/clients/b/b2/b2c23f164518415ec8f3c1c8d0af542d/File/21884955186.pdf In PDF document text
    • http://abwmarlboropike.com/uploads/files/77688274509.pdfIn PDF document text
    • https://elitteaccesorios.com/wp-content/plugins/super-forms/uploads/php/files/1mipg68rlit2agn5di5j808fm4/77338386304.pdfIn PDF document text
    • http://pmteventures.com/clients/5/57/576e8e71b788aac95a268099fab76a3d/File/36191394982.pdfIn PDF document text
    • https://angkorphotographyguide.com/userfiles/file/57355182239.pdfIn PDF document text
    • https://j26clean.com/upload/files/62582215780.pdfIn PDF document text
    • https://sayurhijau.com/contents//files/67484579314.pdfIn PDF document text
    • https://gpagroup.in/wp-content/plugins/formcraft/file-upload/server/content/files/1608d9f2c1669e---nakuxonegokide.pdfIn PDF document text
    • http://aliceinformaticasrl.com/user/pages/8217981852.pdfIn PDF document text
    • http://businesslegalgroup.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/6317078596.pdfIn PDF document text
    • https://svetplus.com/userfiles/files/nebajovorod.pdfIn PDF document text
    • https://asaptransfers.co.uk/wp-content/plugins/super-forms/uploads/php/files/tdbmnchkd3ji2dq8lgelt32bo6/52303296911.pdfIn PDF document text
    • https://cvenhancer.com/wp-content/plugins/super-forms/uploads/php/files/c6c1882917f967f5dab71c2e7ed94640/69431678607.pdfIn PDF document text
    • http://villaturri.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e21c1227aea---fabafumuxodivar.pdfIn PDF document text
    • http://portamarioarchitetto.eu/userfiles/files/89007207234.pdfIn PDF document text
    • http://tipsclubcr.com/campannas/file/xagedoxotem.pdfIn PDF document text
    • http://megalaserasia.com/upload///burunumuxevobisi.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/fzgW7-mxBc0/uplcv?utm_term=formulas+del+lanzamiento+vertical+hacia+arribaPDF link annotation

Open this report in the interactive analyzer, or submit your own file for analysis.