Malicious PDF — malware analysis report

Static analysis result for SHA-256 108294bb0825c5c9…

MALICIOUS

PDF

54.6 KB Created: 2021-06-18 18:22:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 7451381ec9141a7cec1382b271a036fb SHA-1: 1f870827ee32fe3a1bc6a96b91e509b6521f1eca SHA-256: 108294bb0825c5c973d1dfc4a39b941ebf8e05ba24c3a027ea3f9ab22c41ec74
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was detected as malicious by ClamAV and an ML classifier. It contains numerous links, many pointing to compromised WordPress sites, and one directly advertises 'hack wifi password with kali'. The document body is heavily obfuscated and appears to be a lure to external malicious URLs, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9040

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://pixomot.ru/uplcv?utm_term=hack+wifi+password+with+kali PDF link annotation
    • https://yarsan.ru/wp-content/plugins/super-forms/uploads/php/files/1964f7bb836b85a7da6a41598696d9fc/zatilotevirojetubabibowo.pdfIn PDF document text
    • http://abc-tel.ru/data/File/91175502762.pdfIn PDF document text
    • http://rld-carbon.ru/file/68333157610.pdfIn PDF document text
    • https://www.ezhealthcheck.com/wp-content/plugins/super-forms/uploads/php/files/u6lsgs9v66frck3f2fjl8hmamg/jumukagoz.pdfIn PDF document text
    • https://claphamjunction.com.au/wp-content/plugins/super-forms/uploads/php/files/8f514f3499469bc4823b6ece9aa8fdfa/mipemirojuwupomufigebabol.pdfIn PDF document text
    • https://www.elementstraining.co.uk/wp-content/plugins/super-forms/uploads/php/files/i95pchv082062oakkcrb0ani3b/rovozuraserog.pdfIn PDF document text
    • https://www.northwoodmedical.ca/wp-content/plugins/super-forms/uploads/php/files/ken07l8msggs9vaqihmt4dd5g7/sokerexopigawovosa.pdfIn PDF document text
    • https://weeb.nu/userfiles/file/57626695959.pdfIn PDF document text
    • https://astek-telem.fr/userfiles/file/89873367183.pdfIn PDF document text
    • https://btsmstlucia.com/atomicsteps/upload/userfiles/file/52618817231.pdfIn PDF document text
    • http://allseasonsart.com/uploads/fck_uploads/file/kefolimovoguwekovarufonet.pdfIn PDF document text
    • http://2girlstrippin.com/wp-content/plugins/formcraft/file-upload/server/content/files/160722d57be3e4---79684100435.pdfIn PDF document text
    • https://lorenzonimmigrationlaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ab6c5f00dff---70536444869.pdfIn PDF document text
    • http://recamonde.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16094f3338618e---53934268832.pdfIn PDF document text

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