Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa5201f3c51390ac…

MALICIOUS

PDF

71.7 KB Created: 2021-07-23 15:37:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-05
MD5: ec3a1870f8b651319cfd7790b074469d SHA-1: 02235aae38b361e3e982ac203a5a61bfa630a26e SHA-256: fa5201f3c51390acbe4cfd29b4381b825626722acef25583c471fe98793d6364
154 Risk Score

Malware Insights

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

The PDF was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links to external websites, many of which are hosted on compromised CMS upload directories or disposable hosting, suggesting a link farm designed to redirect users to potentially harmful content. The document body is largely unreadable binary data, offering no specific lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5973

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://tikatalog.sk/_files/file/gezizevomatokix.pdf In PDF document text
    • https://ventana-sur.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f571b4bdf3e.pdfIn PDF document text
    • http://entone.es/wp-content/plugins/super-forms/uploads/php/files/9a3fdaf20370597b28b44544850a8287/46721566555.pdfIn PDF document text
    • http://atlantichomeportugal.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608667e26bbf4---18687433392.pdfIn PDF document text
    • http://johndanton.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/nokobagobatugomu.pdfIn PDF document text
    • https://chambredhotes-savoie.com/ckfinder/userfiles/files/sikamoluwefipuxomewedob.pdfIn PDF document text
    • https://alphacleanwashing.com/wp-content/plugins/super-forms/uploads/php/files/1d4eec9c23be8437a4c8a9ed87ef8475/2174723870.pdfIn PDF document text
    • https://llibreriaha.com/img/events/file/sunokufoveberujisoseb.pdfIn PDF document text
    • http://hk-sai.com/ckfinder/userfiles/files/zupuk.pdfIn PDF document text
    • http://www.bridalchapel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bb2b831f879---rumizovunowifaxalus.pdfIn PDF document text
    • http://www.shipsupply.co.mz/wp-content/plugins/formcraft/file-upload/server/content/files/1609b65628aea8---zoruburinupobosifages.pdfIn PDF document text
    • http://eaeocs.com/clients/c/c7/c75ed17bfa54634cfc1039f1b599a7e7/File/36054994502.pdfIn PDF document text
    • https://webvitamin.vn/app/webroot/uploads/files/gizaj.pdfIn PDF document text
    • https://www.modianodesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609c29a6a31c1---925738899.pdfIn PDF document text
    • http://www.nationaalgolfcongres.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1608c446e5cc4a---zimimoxisatogi.pdfIn PDF document text
    • http://mclarenquartz.in/ci/userfiles/files/84510541118.pdfIn PDF document text
    • https://ehblending.com/wp-content/plugins/super-forms/uploads/php/files/c591e18e4b728fbfad35d7af1aa1876c/ginulugerukijukalaj.pdfIn PDF document text
    • https://teenvolunteer.org/wp-content/plugins/super-forms/uploads/php/files/8b8aa8c1fe787f6712cf25b7b10c8285/93906282019.pdfIn PDF document text
    • https://tripleccompanies.com/wp-content/plugins/super-forms/uploads/php/files/584254ebf29e0be23f8b5bf797c63014/rezafegazuwasugetojilesa.pdfIn PDF document text
    • https://www.cr-sdc.org/wp-content/plugins/super-forms/uploads/php/files/729b66c57f8f214754d1f8caae996386/94287775326.pdfIn PDF document text
    • http://www.sm.ac.th/ckfinder/userfiles/files/rixovumupozirewimagetiwam.pdfIn PDF document text
    • http://vlajamo.cz/images/file/vogizesukimipomemewewexet.pdfIn PDF document text
    • http://www.photobreak.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160c153c59b6eb---vekanum.pdfIn PDF document text
    • http://asckhn.com/acskhn/userfiles/file/tefevojezidizogujagal.pdfIn PDF document text
    • https://worldkelo.com/wp-content/plugins/super-forms/uploads/php/files/d559a9006630fb2cdb23ccebbf957989/zibumuregosi.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/1xuhb7AK25c/uplcv?utm_term=delonghi+tch6590er+ceramic+tower+heater+manualPDF link annotation