Malicious PDF — malware analysis report

Static analysis result for SHA-256 349db5fda3c26c6d…

MALICIOUS

PDF

66.6 KB Created: 2020-12-01 09:00:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6aed5732bf658a03e3b6319169e5c65c SHA-1: b4960020a0af4ee8b9eafed66c3cd8859468d01b SHA-256: 349db5fda3c26c6d51f6d5e5e2cfc84cf73cae9be154488da1b140c0a2760404
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged as malicious by ClamAV and an ML classifier. It contains an embedded URI pointing to a suspicious domain, which is likely part of a phishing or malware distribution scheme. The document body, though heavily obfuscated, suggests a lure related to medical treatment guidelines.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7205

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://trafficel.ru/aws?utm_term=cystinosis+treatment+guidelines
    • https://cdn-cms.f-static.net/uploads/4379237/normal_5f9d65e81bcf6.pdf
    • https://cdn-cms.f-static.net/uploads/4449172/normal_5f9fe356b1d65.pdf
    • https://cdn-cms.f-static.net/uploads/4368250/normal_5f9533bfe0fff.pdf
    • https://s3.amazonaws.com/wenobagupexekap/suvusuwuretivibatub.pdf
    • https://uploads.strikinglycdn.com/files/5d5256d0-48ca-4a09-9bf3-e6681b2301a6/gusun.pdf
    • https://uploads.strikinglycdn.com/files/76912830-368c-4a86-8f5c-123874d2758f/cucu_cantaba_la_rana_naruto.pdf
    • https://s3.amazonaws.com/firigugixujotov/arunima_sinha_story.pdf
    • https://uploads.strikinglycdn.com/files/4d4fd87b-ea75-4ea8-be74-374e256f9aa9/84040675443.pdf
    • https://s3.amazonaws.com/vavabi/64691092147.pdf