Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0e7d812fcf46d1d…

MALICIOUS

PDF

12.2 KB
MD5: 580d81737cdf5a3beaf94bf7bdc57f5a SHA-1: fbd9d0155e80582b7da92620ef99bf00ee74b99f SHA-256: e0e7d812fcf46d1de2366d456b30e8e92fc620b762fdeb0ba6230655c0352b28
116 Risk Score

Malware Insights

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

The critical ClamAV heuristic 'Pdf.Exploit.Dropped-94' and the 'PDF_METADATA_EVAL_STAGER' heuristic indicate that this PDF is designed to exploit vulnerabilities and execute embedded JavaScript. The embedded JavaScript stream, though small, is likely responsible for downloading and executing a secondary payload. The PDF metadata also contains JavaScript, further supporting the exploit vector.

Heuristics 4

  • ClamAV: Pdf.Exploit.Dropped-94 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Dropped-94
  • PDF metadata JavaScript eval stager high PDF_METADATA_EVAL_STAGER
    PDF JavaScript reads document metadata fields such as title, subject, or producer, decodes character data with parseInt/String.fromCharCode style helpers, and evals the recovered stage. This is a high-signal exploit-kit staging pattern.
  • 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_obj0076_000.js
377df07868b3a3a99a900bce862fefaa0f9da2f2fdc52c7add0a4080ef7a8401
pdf-javascript-stream PDF /JS object 76 at offset 0x2ED0 331 bytes