Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee6c96aedd65c3f4…

MALICIOUS

PDF

54.0 KB Created: 2021-10-07 00:10:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-25
MD5: 25917e3a8a46bb53534b244628c9c2b6 SHA-1: 56b68c5e8421148dae33c4928a5b06c431121796 SHA-256: ee6c96aedd65c3f42f14fcee14fe5dd3d551ae1806cacd4603afc2295bdbd8e0
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains a large number of embedded URLs pointing to disposable domains, indicating a link farm designed to redirect users to potentially harmful content. The document body was unreadable, but the heuristic firings strongly suggest a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6253

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://synerhu.ru/uplcv?utm_term=fbr+to+mp4+online PDF link annotation
    • http://droneducational.com/admin/userfiles/file/merivajifamis.pdfIn PDF document text
    • http://ever0036.com/assets/uploads/ckedit/files/20211007050817.pdfIn PDF document text
    • https://berettyotv.hu/userfiles/files/sokemavisejinovovufexebeg.pdfIn PDF document text
    • https://www.karenlovelee.com/wp-content/plugins/formcraft/file-upload/server/content/files/161378f274c8c9---dotixosuzisaliboj.pdfIn PDF document text
    • http://veoguidecostarica.com/ci/userfiles/files/56254421695.pdfIn PDF document text
    • http://veterina-naslunci.cz/userfiles/file/talevalasezoxixijoza.pdfIn PDF document text
    • http://pololanna.com/user_img/files/matenajatekabe.pdfIn PDF document text
    • http://neodentpetrosino.it/userfiles/files/rebamerujoxomokerepok.pdfIn PDF document text
    • https://pasarant0g3l-turbo-h1t.com/contents/files/tabolijuguderusitogenu.pdfIn PDF document text
    • http://lab4050.com/upload/editor/file/41424030187.pdfIn PDF document text
    • http://www.tobywells.org/media/fckdir/file/638921243.pdfIn PDF document text
    • http://somogroup.vn/ckfinder/userfiles/files/gevelekedofa.pdfIn PDF document text
    • https://saikekanglun.com/filespath/files/20210906033202.pdfIn PDF document text
    • https://strings97.hu/userfiles/file/57862375609.pdfIn PDF document text
    • http://pelejas.com/IMAGENS/CKFINDER/files/duvurebijuvusuxudajoluzuv.pdfIn PDF document text
    • http://www.tsahimmongol.com/uploads/images/files/83007664503.pdfIn PDF document text
    • http://harrodsrentacar.com/public_html/userfiles/file/nipevebanunewus.pdfIn PDF document text
    • http://propertiesforrent.com/userfiles/file///64778103674.pdfIn PDF document text
    • http://www.leposeur.fr/site/upload/ckfinder/files/godiwunug.pdfIn PDF document text
    • https://nvsrolko.org/ckfinder/userfiles/files/67806759832.pdfIn PDF document text
    • http://www.agot.pl/upload/file/79034209602.pdfIn PDF document text
    • http://budka39.ru/files/38417762077.pdfIn PDF document text
    • http://hairfibers24.com/upload/file/mopobefegixaxijegu.pdfIn PDF document text
    • http://www.dadosefatos.net.br/wp-content/plugins/formcraft/file-upload/server/content/files/161408d6c8e16c---kutakolobopipeduruxupak.pdfIn PDF document text