Malicious PDF — malware analysis report

Static analysis result for SHA-256 00cd82c5fd7bc8e3…

MALICIOUS

PDF

63.6 KB Created: 2021-09-05 22:58:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-25
MD5: c0d7b37d00f1f3939ee175a1a1833fcf SHA-1: 2b2b8d69a680f01fe19c9425f951fa261a9a7afa SHA-256: 00cd82c5fd7bc8e3ece585fe3127efaafee294c9dec1c5542c9dab4c4c0e197e
154 Risk Score

Malware Insights

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

The PDF contains numerous links to external websites, many hosted on compromised CMS platforms or disposable domains, suggesting a link farm for phishing or malware distribution. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or trojan delivery via these links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5217

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 http://gingerbreadvillage.org/clients/e/e3/e396b250b60561adcb946853f9f62e29/File/59953815907.pdf In PDF document text
    • http://thanhlamresort.vn/wp-content/plugins/formcraft/file-upload/server/content/files/16108c9b017f05---12674362166.pdfIn PDF document text
    • https://tcremich.lu/files/files/82869715999.pdfIn PDF document text
    • https://staffxrecruitment.com/wp-content/plugins/super-forms/uploads/php/files/c58c3ef719ad11896df8b036b4d03a5a/50492298447.pdfIn PDF document text
    • https://www.treehousecare.org/wp-content/plugins/formcraft/file-upload/server/content/files/16078b4d201d9a---52146702465.pdfIn PDF document text
    • https://areshin.ru/wp-content/plugins/super-forms/uploads/php/files/f45fa8aac75806d2e399186e512355fe/tofoxiradoderafuviwik.pdfIn PDF document text
    • http://finadev-groupe.com/userfiles/file/gerifuganasiwoferezonu.pdfIn PDF document text
    • https://drlanda.hu/user/file/mepixujimamukitufuta.pdfIn PDF document text
    • http://studiopedrazzini.eu/userfiles/files/disugeduvapumuguguzizuk.pdfIn PDF document text
    • http://ikhmongol.mn/ckfinder/userfiles/files/nubulibefan.pdfIn PDF document text
    • http://pronobile.de/catalog/file/3728756880.pdfIn PDF document text
    • http://zonwering-belgie.eu/ckfinder/userfiles/files/kofitivovanaxogufomadaked.pdfIn PDF document text
    • https://whitelightdesign.com/wp-content/plugins/super-forms/uploads/php/files/2855af8fc0d7c1be37fdc42ca67122a3/18233764983.pdfIn PDF document text
    • http://asztromiskolc.hu/ckfinder/userfiles/files/74722988224.pdfIn PDF document text
    • http://laulumaja.fi/ckfinder/userfiles/files/koxazixu.pdfIn PDF document text
    • http://yuhenganquan.com/userfiles/file/20210621014418_213108446.pdfIn PDF document text
    • https://akarchlight.com/wp-content/plugins/super-forms/uploads/php/files/77dc5f507ee7d447165b91697f913175/62417513541.pdfIn PDF document text
    • http://brighterhealthcare.co.uk/wp-content/plugins/super-forms/uploads/php/files/86un54c6pd7k34idc30g6kq0od/nipovekovorekobere.pdfIn PDF document text
    • https://mobistore.co.nz/wp-content/plugins/super-forms/uploads/php/files/fdfc633da992b22f1584db5fde7b7621/nemukutiwesoxotegona.pdfIn PDF document text
    • https://www.abaco-engineering.it/wp-content/plugins/formcraft/file-upload/server/content/files/1607ed5f42c5ce---piredepuviroxevokidefuki.pdfIn PDF document text
    • http://pavcargo.ru/wp-content/plugins/super-forms/uploads/php/files/42c1f13585e0010da06b447a86fa8f83/dolididesipidumodepujumup.pdfIn PDF document text
    • https://mmagame.com/userfiles/file/punaxowopumatunubig.pdfIn PDF document text
    • http://ahcxdq.com/uploads/file/070001365094.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/6naE_Nh8_CY/uplcv?utm_term=nclex+practice+exam+pdfPDF link annotation