Malicious PDF — malware analysis report

Static analysis result for SHA-256 af1b2f4f6441f19a…

MALICIOUS

PDF

85.9 KB Created: 2021-09-21 02:58:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-27
MD5: ea5e8eb1e457b2273d212b3932f96346 SHA-1: e994a9515fd10b287b5ec66c2648ad8f2c62f09e SHA-256: af1b2f4f6441f19ae2a611012753c01d403e665f4e95cc860b5ce1d9ad9139c5
94 Risk Score

Malware Insights

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

The file was detected by ClamAV as Pdf.Phishing.Trojan. It contains numerous embedded URLs, with one heuristic identifying it as a link farm on disposable hosting. The PDF's structure and the presence of many external links suggest it is designed to redirect users to malicious websites, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3829

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 http://tranindo.com/Uploads/userfiles/files/vufagumalujodilimowadeb.pdf In PDF document text
    • https://laptoptranganh.com/data/dulieu/files/neluzum.pdfIn PDF document text
    • http://quanhoangtsi.com/upload/quangtri/files/kojuzoke.pdfIn PDF document text
    • https://giyimkent.formenemlak.com/upload/ckfinder/files/27443538639.pdfIn PDF document text
    • https://auto826.vnpec.xyz/uploads/files/xajasipiwasewoguzawitewa.pdfIn PDF document text
    • http://chromavials.com/d/files/joguzogasakofedotimaxoloz.pdfIn PDF document text
    • https://stalbeckers.nl/userfiles/image/file/danobusejoj.pdfIn PDF document text
    • https://santaclara.com/wysiwygfiles/file/27944368792.pdfIn PDF document text
    • https://horkolas-gatlas.hu/ufiles/file/28400321198.pdfIn PDF document text
    • http://thcsducthang.pgdbactuliem.edu.vn/ckfinder/userfiles/files/govavubovamuboxezedujulum.pdfIn PDF document text
    • http://mrspk.com/ckfinder/userfiles/files/84654568758.pdfIn PDF document text
    • https://arkadas.yuzuktr.com/eskortarama.com/resimler/file/23044955021.pdfIn PDF document text
    • http://luxcottage.ru/stroykamen/userfiles/file/fizixunukanobap.pdfIn PDF document text
    • http://jcnjl.com/userfiles/files/vonexemapigoz.pdfIn PDF document text
    • http://thermcom.cz/userfiles/file/89927346707.pdfIn PDF document text
    • https://francoisdaulte.com/ckfinder/userfiles/files/nilebedokij.pdfIn PDF document text
    • https://eclipsetheaters.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613f0b53d392a---59449471529.pdfIn PDF document text
    • http://intelekt.biz/uploads/pages/files/15175258833.pdfIn PDF document text
    • https://www.drserapkagan.com/wp-content/plugins/super-forms/uploads/php/files/uuuuju0g7sq40coj42qibq47n8/nogorusumilifosodazofekug.pdfIn PDF document text
    • http://veoguidecostarica.com/ci/userfiles/files/97049278697.pdfIn PDF document text
    • http://bilafafafa.com/shopadmin/upload/files/36330137993.pdfIn PDF document text
    • http://lnimeina.it/userfiles/files/pixomejekuvibako.pdfIn PDF document text
    • http://www.corazondelsol.es/ckfinder/userfiles/files/xuviriw.pdfIn PDF document text
    • http://medob.org/SITE/files/editor/file/8877277378.pdfIn PDF document text
    • https://soudurelauziere.com/upload/editor/file/81980466774.pdfIn PDF document text
    • http://ewtch.com/upload/files/kotunosenatakovo.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/3CAf4wW3hvY/uplcv?utm_term=the+world+as+will+and+representation+read+onlinePDF link annotation

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