Malicious PDF — malware analysis report

Static analysis result for SHA-256 55f5ad2f483a895c…

MALICIOUS

PDF

38.5 KB Created: 2020-12-28 14:10:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ac8299f03441e38e9897b2a927a4f536 SHA-1: ab1bb2acce7c0d867a6a3798f280c055cbcb087c SHA-256: 55f5ad2f483a895c6d74df1757d7928d603467def7b1427471a6280934dc7007
172 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF file is identified as malicious by multiple heuristics, including a critical finding for a malicious redirector link. The 'PDF_IMAGE_LURE' heuristic indicates that the document likely presents a full-page screenshot to hide a clickable button, a common phishing tactic. The embedded URL leads to known malicious infrastructure, suggesting the primary goal is to redirect the user to a compromised site for further exploitation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5418

Heuristics 4

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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 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.
  • 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://ggtraff.ru/strik?utm_term=fruit+veg+fancy+dress+ideas

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