Malicious PDF — malware analysis report

Static analysis result for SHA-256 1538cbda236b3469…

MALICIOUS

PDF

36.6 KB Created: 2021-05-27 17:36:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: a3e04983b467314e739d5ec83ac971b2 SHA-1: 334049bcca562d658c90377faa24f9380bd23fa7 SHA-256: 1538cbda236b3469e9922f180b491500255d9a3a3068b509801789d63502ad01
84 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file is identified as a phishing lure due to its image-only nature and embedded clickable action. The ClamAV detection and the presence of multiple external URLs suggest it is designed to redirect users to malicious sites for phishing or malware distribution. The primary URL points to a resource that appears to be a download link.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3996

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://inwebjor.ru/uplcv?utm_term=gta+sa+sfx+and+stream+files+download+pc PDF link annotation
    • http://canyonoaksmtg.com/~duckdi5/canyonoaksmtg.com/content/file/90665346511.pdfIn PDF document text
    • https://homini.eu/wp-content/plugins/formcraft/file-upload/server/content/files/1609b974ad93b2---25578410205.pdfIn PDF document text
    • https://clubforeducation.com/FCKeditor/userfiles/file/43030842061.pdfIn PDF document text
    • https://www.picmephotoboothhire.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16084949da7179---10697384120.pdfIn PDF document text
    • http://www.telsercom.com/wp-content/plugins/formcraft/fIn PDF document text

Related samples 8

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

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