Malicious PDF — malware analysis report

Static analysis result for SHA-256 dfc007298427bd96…

MALICIOUS

PDF

44.3 KB Created: 2021-09-19 13:06:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-27
MD5: 8d15d67a1c169b33e91c30a3722b9e9f SHA-1: 8d1b3ad151ec56870ae29127261541908ea1cd43 SHA-256: dfc007298427bd965ad1b9f9990a64b5b51e6589b27bbb5e52c26074edcde312
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a high density of embedded URLs pointing to various domains, indicating a link farm or phishing attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. While no scripts were explicitly extracted, the PDF structure and numerous external links are indicative of a spearphishing attachment designed to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7355

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://huntic.ru/uplcv?utm_term=peninsula+movie+online+watch PDF link annotation
    • https://ruta.hu/ckfinder/userfiles/files/nofafagilelig.pdfIn PDF document text
    • http://www.cenlafilm.com/siteuploads/editorimg/file/17738752210.pdfIn PDF document text
    • http://getvisa.ru/images/File/judosagadesipilokikijarez.pdfIn PDF document text
    • http://sk-uralstroy.ru/uploads/files/woniwuzupafemuzifoxeg.pdfIn PDF document text
    • http://jamoncup.es/wp-content/plugins/formcraft/file-upload/server/content/files/1613fbed17ad9d---kewagaze.pdfIn PDF document text
    • http://car-zone.sk/data/data/file/zotufabidi.pdfIn PDF document text
    • http://dreesmann-foto.de/userfiles/file/86349157126.pdfIn PDF document text
    • https://roshnaai.com/ckfinder/userfiles/files/jimimer.pdfIn PDF document text
    • https://sadex.pl/fck/file/153964616.pdfIn PDF document text
    • http://inruho.ru/ckfinder/userfiles/files/69023910842.pdfIn PDF document text
    • https://nhahangthanghuong.com/uploads/files/zojasitabifoni.pdfIn PDF document text
    • http://cen7dias.es/userfiles/files/zonijuxifasemajepapobud.pdfIn PDF document text
    • http://www.teaterskolen-efteruddannelsen.dk/ckfinder/userfiles/files/vezolofopufegaxuvugiruk.pdfIn PDF document text
    • https://ketgate.eu/wp-content/plugins/super-forms/uploads/php/files/dc2dc2acf7a0592f1f56b082224f20f0/41801055280.pdfIn PDF document text
    • http://medizator.ru/ckfinder/userfiles/files/99910625425.pdfIn PDF document text
    • http://apartament-krokus.pl/userfiles/file/vujozuro.pdfIn PDF document text
    • http://mlead.net/images/e/file/gerijubomoruginigim.pdfIn PDF document text
    • https://www.domaine-vrignaud.com/ckfinder/userfiles/files/fawafegarovanirokezumen.pdfIn PDF document text
    • https://oancora.com/ckfinder/files/6236785055.pdfIn PDF document text
    • http://homearcky.nl/userfiles/file/44305342302.pdfIn PDF document text
    • http://alpinedelhi.com/userfiles/files/6786280335.pdfIn PDF document text
    • https://www.stnedu.com/ckfinder/upload/files/98165420992.pdfIn PDF document text
    • https://muratay.nl/userfiles/file/lovakuf.pdfIn PDF document text
    • http://evevoyance.fr/adh/.-/file/vuwujabozedezulijowo.pdfIn PDF document text