Malicious PDF — malware analysis report

Static analysis result for SHA-256 5522d597e8559c3e…

MALICIOUS

PDF

55.6 KB Created: 2021-05-12 09:43:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 95e6bdd8b3d6b4f8bf3cf2f6bbc58cfc SHA-1: 6ff961414fb3af95b7c7dab3f6c82e2ff2013390 SHA-256: 5522d597e8559c3ef1785a78f2d22fa42fa13674a0a37d31df917c01f27d0933
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links pointing to compromised WordPress upload storage, suggesting it is part of a phishing campaign to distribute further malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded links are indicative of a phishing lure, likely leading to the download of a second-stage payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7673

Heuristics 4

  • 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.
  • 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://lokmangal.co.in/wp-content/plugins/super-forms/uploads/php/files/2119b6334613b7580f3241c7b3afd479/mabisigifulirivivubafajul.pdf
    • https://aquaticlandscape.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e78ebdffce---lurabugawavadog.pdf
    • http://ahkjt.com/upfile/file/sejigigub.pdf
    • https://www.grecosalesinternational.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607895d558485---fekis.pdf
    • https://fortlauderdale-carservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608e6fb232fe7---dovokubegemazilowulanule.pdf
    • http://sad-azov.ru/wp-content/plugins/super-forms/uploads/php/files/b376f5c87a57ca68900356957f0d4a0d/49784032819.pdf
    • https://ballestermultiservicios.com/wp-content/plugins/formcraft/file-upload/server/content/files/160979aaa89d47---somakoterosapadegiras.pdf
    • http://www.brennholz-heinlein.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608d47dba158e---21214594802.pdf
    • http://www.pointcookelectrician.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1607243465e06d---57051515640.pdf
    • http://www.canadiantreasurer.com/wp-content/plugins/formcraft/file-upload/server/content/files/16071df3eea536---67377939690.pdf
    • http://kazenergy.kz/wp-content/plugins/formcraft/file-upload/server/content/files/16081c8fec495d---83943472232.pdf
    • http://www.commandinglife.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073999e1d4f8---89858124035.pdf
    • https://aquafilling.com/userfiles/file/demadizemex.pdf
    • https://coachtourbusrental.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608da61f254e7---kexogavokufetuwiwu.pdf
    • https://cedarcreeksauce.com/wp-content/plugins/super-forms/uploads/php/files/8a1361f42543d1d775c7078d2992304e/xarakipokadirizile.pdf
    • https://chefinhogourmet.com/wp-content/plugins/super-forms/uploads/php/files/648af0e2d7ada9bb7b9e03d06bd68f49/66285574578.pdf
    • https://feedproxy.google.com/~r/Uplcv/~3/PmAiG5ZyT-k/uplcv?utm_term=author%2527+s+tone+worksheet+1

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