Malicious PDF — malware analysis report

Static analysis result for SHA-256 e54a4470e61711c8…

MALICIOUS

PDF

36.7 KB Created: 2021-03-13 15:49:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d127b30fe1a93483fc025467ad7a27af SHA-1: afde5af6985b934ac2ecb6e8f2d20f00b88aac9f SHA-256: e54a4470e61711c8a21e623347348ba9ecfc69df11cb1b41896ecf95334381c1
114 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF is identified as an image-only document designed as a phishing lure, containing a clickable link to an external URL. The heuristic 'PDF_IMAGE_LURE' indicates a common tactic where a screenshot masquerades as content, hiding a malicious button. The embedded URL, 'https://xajibur.ru/award?keyword=winning+scholarship+essay+examples+pdf', is the primary indicator of malicious intent, likely leading to a phishing site or further malware download.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6329

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 36 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://xajibur.ru/award?keyword=winning+scholarship+essay+examples+pdf
    • https://cdn.sqhk.co/tozerutiwezu/dibtmly/didi_food_delivery_brazil.pdf
    • https://cdn.sqhk.co/kajipazuto/i5ih7hj/91135954353.pdf
    • https://cdn.sqhk.co/rufosopufu/ijdgejh/48118489275.pdf
    • https://69b3109a-7cce-4514-9193-d2106d9976ab.filesusr.com/ugd/3c2969_68b2f0e1061f4ca5ba29f57e095f19d5.pdf?index=true
    • https://uploads.strikinglycdn.com/files/5ebfa977-7528-4c60-97b6-c5ed1519b168/honda_hr215_transmission_fluid.pdf

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