Malicious PDF — malware analysis report

Static analysis result for SHA-256 5063adad22ae9667…

MALICIOUS

PDF

72.6 KB Created: 2021-08-05 07:47:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-24
MD5: 9899dd7dfe1b5d13457bf57889a7bb67 SHA-1: 240198915d78dcfe324d1b4eeb96c6df42c8edc7 SHA-256: 5063adad22ae966778c9e3eefdc055851560e5434066fa00042f670d031340ec
154 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs, many of which point to compromised WordPress upload directories, indicating a tactic to host malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely to lure users to phishing or malware distribution sites via these links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9843

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://itacademyindia.com/ckfinder/userfiles/files/fobotolugudidoni.pdf In PDF document text
    • https://kvartira-zalog.ru/wp-content/plugins/super-forms/uploads/php/files/6ead2a4f4cbd8de7d8f9f34c104f6417/88320987531.pdfIn PDF document text
    • http://www.appsolutely.sg/wp-content/plugins/formcraft/file-upload/server/content/files/16075bb8d9a09f---11310528225.pdfIn PDF document text
    • http://psychologkmalinowska.pl/ckfinder/userfiles/files/80049796290.pdfIn PDF document text
    • http://ufnk.fr/app/webroot/files/file/62647160214.pdfIn PDF document text
    • https://arch.ua/ckfinder/userfiles/files/sewigesajodagek.pdfIn PDF document text
    • http://www.kickcommerce.com/userfiles/file/vovaraleza.pdfIn PDF document text
    • https://ivfnna.gr/wp-content/plugins/super-forms/uploads/php/files/d0e4ca6cba8f074766eef414fbdf151b/potorufenogasosogugagelu.pdfIn PDF document text
    • https://pezenasenchantee.fr/userfiles/file/lajele.pdfIn PDF document text
    • https://doitoutdoorz.com/file/OE4K6jFzmXltO2RH.pdfIn PDF document text
    • http://aquatherm-graz.at/files/suduwotujadujozunaxopabu.pdfIn PDF document text
    • http://globaltruthmediagroup.com/clients/a/aa/aa8380eac451876ae6ab993bf3a720d6/File/wuzadawawidenukej.pdfIn PDF document text
    • https://drahmetbostanci.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606ebf9d852f2---dofabikimakazidozowazoze.pdfIn PDF document text
    • https://starwebline.com/calisma2/files/uploads/bidavonudivipujovob.pdfIn PDF document text
    • http://architettogherardi.eu/userfiles/files/mufigolatoxewokesidif.pdfIn PDF document text
    • https://hosrem.org.vn/ckfinder/userfiles/files/renofupobasokizukel.pdfIn PDF document text
    • https://amezdigital.com/wp-content/plugins/super-forms/uploads/php/files/5975bd4ff7b4fa9a7c0f3462caa29392/nelosutobedenuxalus.pdfIn PDF document text
    • https://centar-znr-zop.hr/wp-content/plugins/formcraft/file-upload/server/content/files/16079cceee8d60---81558701131.pdfIn PDF document text
    • https://polinagerz.ru/wp-content/plugins/super-forms/uploads/php/files/jfee27of5l4b8pjcve35gn9048/sudikutiwupilazolugad.pdfIn PDF document text
    • https://www.chinacimctrailer.com/wp-content/plugins/super-forms/uploads/php/files/c05235cf094dcbdd08f471faf7a6a28f/rikajiziwotidag.pdfIn PDF document text
    • http://sun-green.de/ckfinder/userfiles/files/89435764833.pdfIn PDF document text
    • https://haps.company/wp-content/plugins/super-forms/uploads/php/files/6647abc421e3f944ec4018c40609f779/40847162182.pdfIn PDF document text
    • http://osheamaloneynylaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/ginilepopaluwile.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/3vuEKuznOb8/uplcv?utm_term=clicker+heroes+ancient+souls+calculatorPDF link annotation

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