Malicious PDF — malware analysis report

Static analysis result for SHA-256 26bdd3a60d7155fc…

MALICIOUS

PDF

44.2 KB Created: 2021-09-13 02:04:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-26
MD5: 8cd97c456f868361072294e5854bc2f8 SHA-1: aeb79af327649bc568935c515ae5697948d13fb6 SHA-256: 26bdd3a60d7155fcf7914a0d8b5793cdd7dc812828e97a507df73d6e60dc71c2
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document was flagged by multiple heuristics, including a critical ClamAV detection for 'Pdf.Phishing.Trojan'. It contains numerous embedded URLs, many pointing to domains that appear to be part of a link farm, suggesting a phishing or malware distribution scheme. The 'PDF_SEO_DISPOSABLE_LINK_FARM' heuristic specifically indicates a non-clustered link farm on disposable hosting, reinforcing the malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7977

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 http://www.aceitunasdelguadalhorce.es/ckfinder/userfiles/files/feveluzitagimevitaw.pdf In PDF document text
    • http://www.zaluziemalina.cz/userfiles/file/neferegu.pdfIn PDF document text
    • http://zabradli-znerezu.cz/userfiles/file/61826463331.pdfIn PDF document text
    • http://llux.vn/uploads/files/57198874175.pdfIn PDF document text
    • https://etre-cheval.fr/Applications/MAMP/htdocs/etre%20cheval/news_pix/file/71015691585.pdfIn PDF document text
    • http://rnralpha.cz/res/file/buxito.pdfIn PDF document text
    • https://riosemarescentrodemergulho.com/ckfinder/files/rujenuzuxuvidax.pdfIn PDF document text
    • http://pk-rowery.pl/user_pict/file/97361863285.pdfIn PDF document text
    • https://foodexgida.com/uploads/files/20139606886.pdfIn PDF document text
    • https://muacash.com/webroot/img/files/nakimerejokowidizalagu.pdfIn PDF document text
    • https://valgott.com/images/userfiles/file/sekaj.pdfIn PDF document text
    • https://jecoexports.com/ckfinder/userfiles/files/mirazomedeguzan.pdfIn PDF document text
    • https://www.lipfish.no/wp-content/plugins/formcraft/file-upload/server/content/files/1613229d667551---28206656763.pdfIn PDF document text
    • http://midel.me/userfiles/file/werajon.pdfIn PDF document text
    • http://www.blackhillsdancecentre.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613203a665a92---tufos.pdfIn PDF document text
    • http://sake2metustin.com/uploads/files/87907664118.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/S30rS-6n6vg/uplcv?utm_term=can+i+watch+tv+on+my+phone+without+internetPDF link annotation

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