Malicious PDF — malware analysis report

Static analysis result for SHA-256 77bad09928d76e96…

MALICIOUS

PDF

42.4 KB Created: 2020-11-22 01:32:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0c87cbb1beb06aca4caf40e24b4fa850 SHA-1: 845774a206471c1d5ad437d4348af91785d14493 SHA-256: 77bad09928d76e96142a6f938289d90b8d7040438cba9e78d138b7afa01d322d
114 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF is identified as an image-only lure, typical for phishing attacks, containing a single clickable link. The ClamAV detection and ML classifier strongly indicate malicious intent. The embedded URL, https://traffine.ru/aws?utm_term=institute+of+medicine+report+on+medical+errors, is the primary indicator of compromise, likely serving as a gateway to a malicious payload or phishing page.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6525

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
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 42 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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://traffine.ru/aws?utm_term=institute+of+medicine+report+on+medical+errors
    • https://pudegubazamase.weebly.com/uploads/1/3/1/1/131163945/jurit.pdf
    • https://cdn-cms.f-static.net/uploads/4453579/normal_5fab1e65f1fa4.pdf
    • https://mekukirofex.weebly.com/uploads/1/3/4/5/134589797/wireluxiwuwod_vudiwumax_wenefif.pdf
    • https://cdn-cms.f-static.net/uploads/4379626/normal_5fa5e9242a511.pdf
    • https://cdn-cms.f-static.net/uploads/4410985/normal_5faaf6907ad97.pdf
    • https://cdn-cms.f-static.net/uploads/4530868/normal_5fb7abeb476ae.pdf
    • https://cdn-cms.f-static.net/uploads/4402956/normal_5fb2c66a04023.pdf
    • https://cdn-cms.f-static.net/uploads/4426677/normal_5f9e4587b1248.pdf
    • https://uploads.strikinglycdn.com/files/2acdfbb6-8e92-47db-9699-4e5203105908/rejepananalesutu.pdf
    • https://uploads.strikinglycdn.com/files/431aa0ad-042c-434d-b358-29dd45d264bd/63115250070.pdf
    • https://s3.amazonaws.com/vovuzize/16195429850.pdf
    • https://uploads.strikinglycdn.com/files/14b96563-08b1-4f6a-ba39-eece31b57a13/fibog.pdf

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