Malicious PDF — malware analysis report

Static analysis result for SHA-256 7c47eaa75d41aa14…

MALICIOUS

PDF

3.2 KB
MD5: 5b86768b625b3dd925637b67238a5b19 SHA-1: d05999177bf30b106073494deb427e4b910b6f52 SHA-256: 7c47eaa75d41aa14090fdd67b9263239e073f0948cb253ee0e3a57a839bab908
76 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 JavaScript/JScript

The PDF file contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. ClamAV also detected this file as Pdf.Exploit.Agent-36121, suggesting it exploits a known PDF vulnerability. The embedded JavaScript is likely responsible for downloading and executing a second-stage payload, though the script content itself was not detailed enough to reconstruct specific actions or URLs.

Heuristics 3

  • ClamAV: Pdf.Exploit.Agent-36121 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-36121
  • 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_obj0007_000.js
cfccd59c5e0ef00bde4627baf299f9f3063e3aeb03b5856ea0ad4ebdef617978		 pdf-javascript-stream PDF /JS object 7 at offset 0x9C4 469 bytes

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