Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e8dd5e7dc0320eb…

MALICIOUS

PDF

36.6 KB Created: 2021-07-12 23:31:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-23
MD5: 26c11b53fbd01f4ca0fc4a39d3d91e29 SHA-1: 18c7b49bff262c34443fdbf46647ba5914df33be SHA-256: 8e8dd5e7dc0320ebe62a5eab323d912b5b8f498ec5f3e8efc58016d24d4ad76a
114 Risk Score

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 0.7134

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 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://allytemp.ru/uplcv?utm_term=cdse+question+papers+pdf PDF link annotation
    • http://atlantichomeportugal.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c467dd5e0a5---wugirunegix.pdfIn PDF document text
    • http://golfproradost.cz/webpagebuilder/ckfinder/userfiles/files/visekewok.pdfIn PDF document text
    • http://nesemlak.com/test/images/uploads/files/wekuf.pdfIn PDF document text
    • https://fortlauderdale-carservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608e4ac742213---61520136312.pdfIn PDF document text
    • https://adikkedua.com/contents//files/60385040879.pdfIn PDF document text

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