Malicious PDF — malware analysis report

Static analysis result for SHA-256 c353c4197272b24b…

MALICIOUS

PDF

37.2 KB Created: 2021-09-05 11:12:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-05
MD5: 540cc3f3fb5200da319a26635b0a05ba SHA-1: fbbd05b53c69f3b1fb933eb3a4fd0051cff032ce SHA-256: c353c4197272b24bfeb66ceb395fa990015b18df5af352a1d2aba27515a0176e
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 0.6667

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 1 text block(s), carries a click-outward action, and is only 37 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 http://tostonet.cl/ckfinder/userfiles/files/mivarukewejibux.pdf In PDF document text
    • http://cedresarquitectura.com/wp-content/plugins/formcraft/file-upload/server/content/files/160779ffb27d4a---jovud.pdfIn PDF document text
    • http://dientrotiendathc.com/media/ftp/file/lekanezega.pdfIn PDF document text
    • https://woodfur.in/userfiles/file/36650672788.pdfIn PDF document text
    • http://klasykarozrywki.pl/public/images/fck/file/4955493810.pdfIn PDF document text
    • https://adm.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/bbaea0d11040cedecf86283d7ebd3405/zovimepefoxuk.pdfIn PDF document text
    • http://graham1978.com/clients/79565/File/darivavemenetago.pdfIn PDF document text
    • http://zzweien.com/d/files/dulug.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/PmAiG5ZyT-k/uplcv?utm_term=inverted+commas+worksheet+year+2PDF link annotation

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

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