Malicious PDF — malware analysis report

Static analysis result for SHA-256 f7edc6f7432fc6cd…

MALICIOUS

PDF

50.6 KB Created: 2020-12-15 19:49:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: eac37e1fd4277ef2b2fd137b33c2c068 SHA-1: e3a66d7f8bb5f9ad24f929f3f63ad2e261b3d625 SHA-256: f7edc6f7432fc6cd4d0145c963df67be3a1c2b72cb26d53150048c8b9f970902
172 Risk Score

Malware Insights

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

The PDF is identified as malicious by multiple heuristics, including a critical finding for a link to known malicious redirector infrastructure. The 'PDF_IMAGE_LURE' heuristic indicates a common phishing tactic where a screenshot is used to hide a clickable malicious link. The embedded URL leads to a redirector, likely serving as a step in a phishing or malware distribution chain.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6121

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 50 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://cctraff.ru/aws?utm_term=causes+of+coliform+in+well+water

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