Malicious PDF — malware analysis report

Static analysis result for SHA-256 e692e286b3da28b2…

MALICIOUS

PDF

63.9 KB Created: 2021-07-17 00:03:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-16
MD5: bf9e290f3dd64aba81b8020780b02150 SHA-1: 140107932c588276e6354d75ca20c1c8aaf58f92 SHA-256: e692e286b3da28b2727cf41c9ac49bbe546932a10451ecf4c41d7854c6bcf2bd
154 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs, many of which point to compromised CMS upload directories and disposable hosting domains, indicating a link farm designed to redirect users. The ML classifier and ClamAV detection strongly suggest malicious intent, likely phishing or malware distribution via these links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5089

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://realestateconnect.pro/wp-content/plugins/super-forms/uploads/php/files/8rboj02tojfih5lhmk5svrt145/nabebadazuwaluku.pdf In PDF document text
    • https://contabil-fiscal.ro/mm/file/18174337218.pdfIn PDF document text
    • http://www.lauricedale.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160ab940521063---livojojifusijugutir.pdfIn PDF document text
    • http://sip7.online/wp-content/plugins/super-forms/uploads/php/files/da3fb9507ad3c741610b81491f05f343/notobosakezaxote.pdfIn PDF document text
    • https://bonpetsupply.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084c2c7b61df---lebikoru.pdfIn PDF document text
    • http://hainescentreasia.com/images/file/64579378590.pdfIn PDF document text
    • http://bukharasuwanee.com/sites/default/files/file/fiwibezozuxafakubulezi.pdfIn PDF document text
    • https://szabobuszrendeles.hu/files/files/61971682542.pdfIn PDF document text
    • http://anneadamslaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/timodalivilixebobafuwig.pdfIn PDF document text
    • http://nsfeed.com/_UploadFile/Images/file/51850151072.pdfIn PDF document text
    • https://eyestech.in/wp-content/plugins/super-forms/uploads/php/files/p4a4550cjc9rac672ihcvv5tbv/xutexaxulurubu.pdfIn PDF document text
    • https://skyfireconsulting.com/wp-content/plugins/super-forms/uploads/php/files/1nipuuqt3rd12kh2p0i04521pp/60868377365.pdfIn PDF document text
    • http://www.melloecastro.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608e6436b5370---masakotabikolijesil.pdfIn PDF document text
    • https://scavilecis.it/userfiles/file/miran.pdfIn PDF document text
    • https://egca.fr/userfiles/file/93623526455.pdfIn PDF document text
    • http://sugarfree-gelato.com/upload/file/33768171735.pdfIn PDF document text
    • http://beateromer.com/bilder/file/zevepedanu.pdfIn PDF document text
    • https://centar-znr-zop.hr/wp-content/plugins/formcraft/file-upload/server/content/files/160db08e4bc9d3---70520247299.pdfIn PDF document text
    • http://www.1atlanticfunding.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c6878cd8874---tujutakuvolosisusolupuduj.pdfIn PDF document text
    • http://laweasy.kr/userfiles/file/fanenilewotadenuso.pdfIn PDF document text
    • https://beribuket.ru/wp-content/plugins/super-forms/uploads/php/files/96b370dd4a1417feca2f462a66149df9/54962225281.pdfIn PDF document text
    • https://ethiquedevelopers.com/wp-content/plugins/super-forms/uploads/php/files/25ec4f531cb059acaca667d1e25d99e4/wadaxizogepor.pdfIn PDF document text
    • http://nguyenquangcomputer.com/upload/ck/files/moxelobugitizegifasibi.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/3vuEKuznOb8/uplcv?utm_term=contraction+of+should+notPDF link annotation

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