Malicious PDF — malware analysis report

Static analysis result for SHA-256 e5fb5fc6ce122f95…

MALICIOUS

PDF

49.8 KB Created: 2021-09-10 12:56:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-07
MD5: 605e7ad6166e943539aadac4f377431e SHA-1: a5ec6b58b6adfe37edae9f786bea24eba9b64484 SHA-256: e5fb5fc6ce122f9522e542cdfcf4186bb2d8a204924ffa2e7905a1db4ed66a8f
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded URLs, many of which point to disposable domains and are structured as link farms, indicating a phishing or credential harvesting attempt. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware delivery. Although no scripts were explicitly extracted, the PDF structure and URL patterns are consistent with malicious document lures.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9526

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://zekejozsef.eu/FCKfeltoltott/file/88834209785.pdf In PDF document text
    • http://julianowka.pl/ckfinder/userfiles/files/65960574797.pdfIn PDF document text
    • http://buddhavehicle.com/userfiles/file/bunuloj.pdfIn PDF document text
    • https://cicadit.ro/UserFiles/file/satato.pdfIn PDF document text
    • http://sahcarpets.com/userfiles/file/wojosunezikeg.pdfIn PDF document text
    • http://oralrem.kz/ckfinder/userfiles/files/vituwozugoponakovom.pdfIn PDF document text
    • http://worldtile.net/jangheung/userfiles/file/61057030368.pdfIn PDF document text
    • https://ofcourselc.com/admin/uploadsfile/jusewegupekusagezuki.pdfIn PDF document text
    • http://shesob.com/file/files/38092474789.pdfIn PDF document text
    • https://hylyt.co/wp-content/plugins/super-forms/uploads/php/files/af62fd8b9d7cf3eec493eded313673a2/fubisorafoseve.pdfIn PDF document text
    • https://kiofruits.com/admin/uploads/files/59687386280.pdfIn PDF document text
    • http://dralituncer.net/userfiles/file/6249121791.pdfIn PDF document text
    • http://www.pavimentosyreformasferlu.es/ckfinder/userfiles/files/98195408296.pdfIn PDF document text
    • https://www.tocbirsen.org.tr/ckfinder/userfiles/files/50064979719.pdfIn PDF document text
    • http://hotel-ambassador-nice.com/upload/files/lajex.pdfIn PDF document text
    • http://englandmatchshirts.com/assets/file/63128266960.pdfIn PDF document text
    • http://global-gypsum.com/wp-content/plugins/formcraft/file-upload/server/content/files/161333fe8853f4---18697247399.pdfIn PDF document text
    • http://tunesistudio.eu/userfiles/files/fojozapow.pdfIn PDF document text
    • http://ttmplus.com/userfiles/files/38053801178.pdfIn PDF document text
    • http://lex-ter.ru/admin/ckfinder/userfiles/files/sumirejikijupuxor.pdfIn PDF document text
    • http://sibleyestateplanning.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/vojedew.pdfIn PDF document text
    • http://graczeonline.pl/userfiles/file/94498329257.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1xuhb7AK25c/uplcv?utm_term=droid+turbo+2+specsPDF link annotation