Malicious PDF — malware analysis report

Static analysis result for SHA-256 830e53c3af8237d6…

MALICIOUS

PDF

69.6 KB Created: 2021-03-01 11:46:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-22
MD5: 311d7225ea585e8477addfc76c1589b5 SHA-1: 720732dfdd0782ec00d725a89f0531debfac6f64 SHA-256: 830e53c3af8237d6ed5d1caeaf02b2535fc52585afa4936803c422c9e59f0bdd
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is identified as malicious by multiple detection engines, including ClamAV and an ML classifier. It contains an embedded URI pointing to a suspicious domain, which is also listed as an IOC. The PDF's metadata and structure suggest it was generated by wkhtmltopdf, a tool sometimes used to create malicious documents. No scripts were extracted, but the presence of an external URI strongly indicates an attempt to redirect the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9063

Heuristics 3

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://nipisod.ru/strik?utm_term=making+movies+sidney+lumet+review PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4425913/normal_5feb294acfbfc.pdfIn PDF document text
    • https://cdn.sqhk.co/dijexovesaf/flOhfzI/masha_e_urso_festa_infantil_simples.pdfIn PDF document text
    • https://cdn.sqhk.co/rivotoxupow/ijiEhi6/candy_crush_soda_saga_level_1882.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4377113/normal_5fc6df0c313e8.pdfIn PDF document text
    • https://cdn.sqhk.co/vunelebu/Hgchegc/zombie_survival_game.pdfIn PDF document text
    • http://ing-cliente.com/zombie_district_apk_modkuhfq.pdfIn PDF document text
    • https://cdn.sqhk.co/fiporalisu/wieCrPF/dajabaxow.pdfIn PDF document text
    • http://healsmall.space/mp3_player_free_download_for_laptoprhoi5.pdfIn PDF document text
    • https://cdn.sqhk.co/pigevikuwi/6gcjjGq/weed_strains_list_with_pictures.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4407998/normal_6003434dc4266.pdfIn PDF document text
    • http://gufutaca6.xyz/codecombat_level_13_hack_and_dash_answercq7xg.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4383582/normal_6001b07c7cb6b.pdfIn PDF document text
    • http://uabiomanix.xyz/pigumapiwazilkho7n.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403805/normal_602d6418b1fe0.pdfIn PDF document text

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