Malicious PDF — malware analysis report

Static analysis result for SHA-256 7cc000c0aeac478f…

MALICIOUS

PDF

41.5 KB Created: 2021-09-25 00:46:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-27
MD5: 8b5015c217c877c337029f365300cba3 SHA-1: 2ea6441badc81c7e5f12a0ef162b2a2187f5f929 SHA-256: 7cc000c0aeac478fcbd5b74d6e572506cb19c3e7fb691e5a8457101bcbe04c75
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains numerous embedded URLs, many of which point to disposable domains and are structured as link farms. The ClamAV detection and ML classifier indicate malicious intent, likely phishing or malware distribution. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic specifically flags the file as a link farm on disposable hosting, reinforcing the malicious nature.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8171

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
  • 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://balbok.net/admin/ckfinder/userfiles/files/75168796015.pdf In PDF document text
    • http://zajazd-broadway.pl/galeria/file/pomokunogib.pdfIn PDF document text
    • http://prunay-en-yvelines.fr/ckfinder/userfiles/files/15408398990.pdfIn PDF document text
    • http://wjcopy.com/upload/files/4058189389.pdfIn PDF document text
    • https://www.thaiahpa.com/flash/files/deganaboxutikumiga.pdfIn PDF document text
    • https://galaxytraining.examinationonline.com/files/vamerikitoxajamaxedodes.pdfIn PDF document text
    • http://tfh-filter.hu/_user/file/38193498257.pdfIn PDF document text
    • http://tuzvedo.hu/elemek/file/48111621003.pdfIn PDF document text
    • http://inimtrento.it/userfiles/files/79462658090.pdfIn PDF document text
    • https://canoe.ro/Extras/ckfinder/userfiles/files/7678759624.pdfIn PDF document text
    • https://medbioplast.com/klucharnet/images/file/27584892624.pdfIn PDF document text
    • http://indianspringhomes.net/userfiles/files/xofiw.pdfIn PDF document text
    • http://manu-transport.com/documents/file/xaboxafapox.pdfIn PDF document text
    • http://lagerunda.it/public/upload/file/88865802139.pdfIn PDF document text
    • http://caacoding.net/wp-content/plugins/formcraft/file-upload/server/content/files/161486c1adfd71---14440894636.pdfIn PDF document text
    • https://feltshoe.com/userfiles/file/75550477705.pdfIn PDF document text
    • http://ahknchem.com/upload/files/fuzulefirado.pdfIn PDF document text
    • http://12shio5.com/contents/files/subinewuvo.pdfIn PDF document text
    • http://xiangzhuan.tw/upload/files/60483770415.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/GLLx1DTH0VQ/uplcv?utm_term=the+house+that+jack+built+full+movie+freePDF link annotation

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