Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2e7001b1d20a218…

MALICIOUS

PDF

64.0 KB Created: 2021-06-26 13:01:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-24
MD5: e8134eeb7c4f40c4aa5e962e925d05b4 SHA-1: 97bfe10ff2055e3e58ff729825817d14f891ee88 SHA-256: d2e7001b1d20a2185591ad131d84432e67ee98ab15a770f4797e99ccb32df568
162 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded JavaScript and a link farm pointing to compromised WordPress sites, suggesting an attempt to distribute further malicious content. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or malware distribution via these links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5245

Heuristics 6

  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://primeodontorj.com/wp-content/plugins/super-forms/uploads/php/files/6d73a933f6dc7d3b6ef24625fd7b4c3c/jesujerupobariwibi.pdf In PDF document text
    • https://luminex.pl/upload/file/xipakus.pdfIn PDF document text
    • https://ajitcoatings.com/uploads/36189378445.pdfIn PDF document text
    • http://www.urbanwaterways.info/files/rixorelosavizetotorizen.pdfIn PDF document text
    • http://www.sunargrup.com.tr/wp-content/plugins/super-forms/uploads/php/files/k05bqfralt6i402hk4jlpng452/zirapokazumafuba.pdfIn PDF document text
    • https://jiptv.nl/wp-content/plugins/super-forms/uploads/php/files/jve4k811e82lobiars1d4g0jhc/45567997018.pdfIn PDF document text
    • https://floresdeserrezuela.com/aym_image/files/lanexewodiwixevejukujexin.pdfIn PDF document text
    • https://udachi.co.th/wp-content/plugins/super-forms/uploads/php/files/a268sqkfeidp84ip6nmjnc8bvg/58942540972.pdfIn PDF document text
    • https://betonwerkendejonge.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160851649bff40---nilexinefute.pdfIn PDF document text
    • http://sk-massimo.com/js/upload/files/viwaxadim.pdfIn PDF document text
    • https://www.plsok.com/wp-content/plugins/super-forms/uploads/php/files/0fd4d684c68d29dc9c0f0a1d71f74c07/xaposaxoseximutusupixuv.pdfIn PDF document text
    • http://queuemanagementsystems.com/wp-content/plugins/formcraft/file-upload/server/content/files/160afe1b5ec6a7---xiwawalenalejazuxalejewuz.pdfIn PDF document text
    • https://technok.cz/wp-content/plugins/super-forms/uploads/php/files/f96dd51d62735a98a4d2bebae931e047/tivevizukizab.pdfIn PDF document text
    • http://ikhmongol.mn/ckfinder/userfiles/files/80632850473.pdfIn PDF document text
    • http://dioceseofniranam.org/userfiles/file/zudogudobixokami.pdfIn PDF document text
    • https://eclipsetheaters.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e90a2b5725---parobodoxizedurel.pdfIn PDF document text
    • https://law.com.sg/wp-content/plugins/super-forms/uploads/php/files/7c33ffffd033e2ba5367c0d1257f1a85/13226561940.pdfIn PDF document text
    • https://ecoinkworld.com/wp-content/plugins/super-forms/uploads/php/files/5edea7e08a64dc25934374321da10262/54171155306.pdfIn PDF document text
    • https://messianic.live/wp-content/plugins/super-forms/uploads/php/files/7bf2aee6a6be89cc0a15417058df7717/poxusek.pdfIn PDF document text
    • http://tikatalog.sk/_files/file/jiloturizutak.pdfIn PDF document text
    • https://www.cocochan.com.pk/wp-content/plugins/super-forms/uploads/php/files/b4cde022c08eca59eef7b7070921b647/85091269082.pdfIn PDF document text
    • https://hoffmanowska.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160747243017c7---87238787772.pdfIn PDF document text
    • https://amartzon.store/wp-content/plugins/super-forms/uploads/php/files/b73943a96024eedb5daac1a10084cfa9/bedibo.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/Om9ozkHLxGw/uplcv?utm_term=modern+container+shipPDF link annotation

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