Malicious PDF — malware analysis report

Static analysis result for SHA-256 441e44adeebf1a1c…

MALICIOUS

PDF

56.6 KB Created: 2021-06-23 20:42:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-31
MD5: c3f89d8f31d74fd4815397eae65bdb85 SHA-1: cc96be70da2d69406631d64f75f10be61ed272c3 SHA-256: 441e44adeebf1a1c1eff0b8fddb0c525ef4e87166ec6abc232390f5a59435f1b
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. It contains a link farm pointing to multiple compromised WordPress upload directories and disposable hosting sites, suggesting an attempt to redirect users to malicious content. The presence of external URIs and the overall structure indicate a likely phishing or malware distribution lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6549

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://www.napariverinn.com/wp-content/plugins/super-forms/uploads/php/files/690e73d4ec245635a1695ff5d3ac215c/1734931197.pdf In PDF document text
    • https://elektrona.cz/files/file/tujafud.pdfIn PDF document text
    • https://biovuspharma.net/userfiles/files/powemexoruvepezasegamas.pdfIn PDF document text
    • https://searchlink.org/userfiles//file/lugudisabevot.pdfIn PDF document text
    • https://www.capitalroofingct.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607fd86fef5e1---livedirejowededasijedu.pdfIn PDF document text
    • https://fastcomputer.vn/wp-content/plugins/super-forms/uploads/php/files/192914d12ca298cee80b5134496c7d76/lirameridaraxow.pdfIn PDF document text
    • http://americanpetrochemicals.com/customers/CMS-IMAGES/file/navilisepugixotulunok.pdfIn PDF document text
    • http://grupomarsamo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160805064460a1---gajufadadolidi.pdfIn PDF document text
    • http://jhsclassof63.com/clients/c/c8/c8cc7cee7579ddcd469b669c0eb172d8/File/sadubumobepata.pdfIn PDF document text
    • https://mobistore.co.nz/wp-content/plugins/super-forms/uploads/php/files/820d60d4fee9c61364aa5c351debec46/80121846484.pdfIn PDF document text
    • https://securitegenerale.tn/userfiles/file/janakirepovixapoxogel.pdfIn PDF document text
    • http://samuiluxurytravel.com/Uploads/file/12285409921.pdfIn PDF document text
    • http://aeskulap24h.de/wp-content/plugins/formcraft/file-upload/server/content/files/160b5561176656---tapida.pdfIn PDF document text
    • https://dongytueduc.com/wp-content/plugins/super-forms/uploads/php/files/rpnldo72c01ln32ob4mp1i1dk0/57895049858.pdfIn PDF document text
    • http://www.majoriscambio.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a9efb200d13---38038772681.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/LPIa9PGmDLg/uplcv?utm_term=make+time+by+jake+knapp+and+john+zeratsky+pdfPDF link annotation

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