Malicious PDF — malware analysis report

Static analysis result for SHA-256 e3c8a2a1e3d2402b…

MALICIOUS

PDF

11.8 KB
MD5: 5f69fada990b83412ab17b56700b1d89 SHA-1: b3b2ef0340bc837bb917a78ce2acbd4c6eec0e45 SHA-256: e3c8a2a1e3d2402bf01315d587903eac03ccd22cff2f7b5604c3ccee06ba815e
76 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1204.002 Malicious File

The PDF contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. ClamAV detection as 'Pdf.Dropper.Agent-9448947-0' strongly suggests this is a dropper. The embedded JavaScript is likely responsible for downloading and executing a second-stage payload, a common technique for malware delivery. The document body was unreadable, but the heuristics and ClamAV detection are sufficient to infer malicious intent.

Heuristics 3

  • ClamAV: Pdf.Dropper.Agent-9448947-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-9448947-0
  • JavaScript action low PDF_JAVASCRIPT
    PDF contains a /JavaScript action. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
javascript_obj0045_000.js
15c013e9524b906bec990b87f2fd6cb49f7ae85d5f5531f8422eda1455114176		 pdf-javascript-stream PDF /JS object 45 at offset 0x193 27669 bytes

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