Malicious PDF — malware analysis report

Static analysis result for SHA-256 5913df36dfa788b1…

MALICIOUS

PDF

36.7 KB Created: 2021-03-28 07:03:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 899306ff703e2f89eacb3937b257c986 SHA-1: 81e0a9d8877907a860c193ca720c6bfdc723da3b SHA-256: 5913df36dfa788b1d30c811c9bbf2148528d53e592ea67a65bae29707e0188cc
114 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file uses an image-based lure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5974

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://dafemum.ru/award?keyword=orchestral+excerpts+for+flute+pdf PDF link annotation
    • https://cdn.sqhk.co/tunidenopu/iMjiCqu/kurbis_farm_bayern.pdfIn PDF document text
    • https://gavuzolarot.weebly.com/uploads/1/3/4/4/134458525/nidabuxejuzege.pdfIn PDF document text
    • https://zuxadozi.weebly.com/uploads/1/3/4/6/134662888/637b60ff9bf82e.pdfIn PDF document text
    • https://cdn.sqhk.co/lilanoto/rslherq/duxeme.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369173/normal_601228d9a999e.pdfIn PDF document text
    • http://gelifadewew.rf.gd/anarkali_anarkali_song_free.pdfIn PDF document text

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