Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2b2406a4b0c9182…

MALICIOUS

PDF

69.6 KB Created: 2021-01-10 03:53:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e5707d950c8cdf28dd6e3d3e69215deb SHA-1: 439db108756d1735efb4e008fd82f7eb9dcbfd72 SHA-256: f2b2406a4b0c9182a7d9a99b1afdf9633205117543d1d3db177d55331ca489b9
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous external links, including one to 'traffking.ru' with a query parameter suggesting a lure related to visa applications. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URIs suggest it's designed to redirect users to malicious websites, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8617

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 https://traffking.ru/aws?utm_term=japan+embassy+tourist+visa+application+form
    • https://site-1175981.mozfiles.com/files/1175981/outlier_algebra_definition.pdf
    • https://site-1175458.mozfiles.com/files/1175458/veduxisazinugivivekoze.pdf
    • https://vikisoxez.weebly.com/uploads/1/3/4/7/134712259/pomukofa.pdf
    • https://sijerixo.weebly.com/uploads/1/3/4/0/134042725/buxidatogavet.pdf
    • https://site-1168059.mozfiles.com/files/1168059/92481322815.pdf
    • https://site-1175555.mozfiles.com/files/1175555/classic_cars_for_sale_under_10000_australia.pdf
    • https://site-1171107.mozfiles.com/files/1171107/australian_gold_rush_miners.pdf
    • https://site-1177051.mozfiles.com/files/1177051/galaxy_shooter_reload_space_shooting_for_pc.pdf
    • https://s3.amazonaws.com/wujodibu/66159455193.pdf
    • https://s3.amazonaws.com/navoburarovada/descargar_afinador_de_guitarra_cifra_club_apk.pdf
    • https://s3.amazonaws.com/vaxebisapesi/85210863235.pdf

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