Malicious PDF — malware analysis report

Static analysis result for SHA-256 56de8ae2ff5d4d2f…

MALICIOUS

PDF

44.3 KB Created: 2020-11-09 22:08:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ad1f7887dd7027d40b4ae70403e512f0 SHA-1: e5b28588968dc1ee3562e9923654f7cef68048b8 SHA-256: 56de8ae2ff5d4d2f7831e9f8780f3015e0c2fd6a3f507af7aed300a58e0d4cdb
114 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file is identified as malicious by ClamAV and an ML classifier. It employs a common phishing tactic by presenting an image-only document with a clickable action, designed to lure the user into visiting an external URL. The heuristic 'PDF_IMAGE_LURE' strongly suggests this is a phishing or malware delivery attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5726

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
  • 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 44 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://trafftec.ru/strik?keyword=portrait+of+a+graduate+virginia
    • https://cdn-cms.f-static.net/uploads/4380088/normal_5fa8c1b950f69.pdf
    • https://manuxemewawi.weebly.com/uploads/1/3/4/4/134443751/39fdf10f6a45739.pdf
    • https://cdn-cms.f-static.net/uploads/4408983/normal_5f95fadd5bd0e.pdf
    • https://jakedekokobara.weebly.com/uploads/1/3/1/3/131381480/xududev-ledavodu-jatulivarolaxe-bixebenal.pdf
    • https://ziroluberunoreg.weebly.com/uploads/1/3/4/4/134456507/5aac35182.pdf
    • https://s3.amazonaws.com/rizezobabub/gubutumuninamamumoti.pdf
    • https://uploads.strikinglycdn.com/files/18c411d5-a92d-472c-a55f-0291b62813c4/1274893288.pdf
    • https://uploads.strikinglycdn.com/files/74b0b935-693b-47f5-a1a5-08ecba1285e0/86793617291.pdf
    • https://uploads.strikinglycdn.com/files/d52503aa-0e3d-4e89-867a-09bdd4d7df81/ocd_annual_conference_2020.pdf

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