Malicious PDF — malware analysis report

Static analysis result for SHA-256 146d7d1f4b47bec8…

MALICIOUS

PDF

78.7 KB Created: 2021-09-04 06:36:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-07
MD5: cf0098d6aa0db702f94653c2a4c580fc SHA-1: ed7e9b138ccb4190c5aaed702567d95a4de44edb SHA-256: 146d7d1f4b47bec8b0eb6a21d7468a098f51f62e2e08e4984c9bdde5e4e80e64
154 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to compromised WordPress sites and disposable domains, indicating a link farm designed to redirect users to malicious content. ClamAV detection as 'Pdf.Phishing.Trojan' further supports its malicious nature. The ML classifier also flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6584

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://fortlauderdale-carservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d69b096ab59---mibotaforusap.pdf In PDF document text
    • http://kpotplace.com/uploads/files/90958624032.pdfIn PDF document text
    • http://chongros.com/userData/board/file/korelewenoganowonex.pdfIn PDF document text
    • https://www.certificagreen.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a4ed2a5a4c6---kutov.pdfIn PDF document text
    • https://www.dishdivvy.com/wp-content/plugins/super-forms/uploads/php/files/fa36534449c7758ac55be7d591b5591b/57259330352.pdfIn PDF document text
    • http://1970fchs50thclassreunion.com/clients/1/19/19770213778af891f1b13fa25f964f50/File/dufati.pdfIn PDF document text
    • https://idfusionllc.com/wp-content/plugins/super-forms/uploads/php/files/7bd4c914192abc193acebf0519c3db65/81345077323.pdfIn PDF document text
    • http://animalscipublisher.com/files/upfiles/file/retugipujibugapeviri.pdfIn PDF document text
    • http://sreema.org/FCKeditor/file/2303018726.pdfIn PDF document text
    • http://a-swiss.com/upload/userfiles/file/95221039879.pdfIn PDF document text
    • https://goodmix-psc.com/userfiles/files/tuborikijenuxugepivijafe.pdfIn PDF document text
    • https://alakharia.com/public_html/userfiles/file/46142675552.pdfIn PDF document text
    • https://www.mclarenpress.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608485ff0cd2a---12691714713.pdfIn PDF document text
    • https://growlocals.com/wp-content/plugins/super-forms/uploads/php/files/0291a740a1aa57ebad6d392c80688e3f/xobod.pdfIn PDF document text
    • https://datajournonepal.org/files/gejajupuzojumoziwedule.pdfIn PDF document text
    • https://schreinerheusi.de/wp-content/plugins/formcraft/file-upload/server/content/files/160ac0fcecd9fd---12551134950.pdfIn PDF document text
    • http://kingspec.su/wp-content/plugins/super-forms/uploads/php/files/0ek8a38mgefvmq0k94sv1i41qe/83486019967.pdfIn PDF document text
    • http://dabien.co.kr/wp-content/plugins/formcraft/file-upload/server/content/files/160a6c2910fc36---78971734058.pdfIn PDF document text
    • http://architettomontanino.eu/userfiles/files/madakikuvo.pdfIn PDF document text
    • http://xn--xhq021fvrwdth.com/d/files/4920251462.pdfIn PDF document text
    • https://feldmann.pl/userfiles/file/gadixepojesi.pdfIn PDF document text
    • https://hchoanglong.vn/userfiles/file/tawatibemaginezubake.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/LPIa9PGmDLg/uplcv?utm_term=kerala+house+plan+elevation+pdfPDF link annotation

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