Malicious PDF — malware analysis report

Static analysis result for SHA-256 76d1adcd59490adb…

MALICIOUS

PDF

38.0 KB Created: 2021-03-31 19:31:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e4a08b598942e64413a7b915049d9de0 SHA-1: 4a55e7ca49275901af3a6fa84dc560216ce5abb8 SHA-256: 76d1adcd59490adbef24b52f38103dd38aff976b32c2bcfb6c57ab94456fd942
114 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF is identified as a phishing lure due to its image-heavy nature and embedded clickable link. The ML classifier and ClamAV detection strongly indicate malicious intent. The embedded URL likely leads to a malicious site for further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6900

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 38 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://jottigo.ru/award?keyword=apa+citation+format+guide+pdf
    • https://cdn-cms.f-static.net/uploads/4463810/normal_60470194a6e85.pdf
    • https://static.s123-cdn-static.com/uploads/4482002/normal_5fe4236d6172d.pdf
    • https://cdn-cms.f-static.net/uploads/4468274/normal_60293c7b39392.pdf
    • http://gemubanabugawa.mypressonline.com/favemoxobes.pdf
    • https://cdn.sqhk.co/sutazojawote/gjbiiji/marketplace_mall_food_court_entrance.pdf
    • https://cdn-cms.f-static.net/uploads/4479462/normal_604a224b9c99c.pdf
    • https://cdn-cms.f-static.net/uploads/4478414/normal_6048df5defdf8.pdf
    • https://cdn-cms.f-static.net/uploads/4425759/normal_60469475da562.pdf
    • https://cdn.sqhk.co/muzorefu/ejjhaif/961101571.pdf
    • http://mejusamenubeto.rf.gd/navamadapezibekos.pdf

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