Malicious PDF — malware analysis report

Static analysis result for SHA-256 7faea2a5d325e73f…

MALICIOUS

PDF

45.0 KB
MD5: 3b0552b8eccb11695d090019273c7ff6 SHA-1: c2e9edd1175f8409d6a6d64998de11e4bf6817a6 SHA-256: 7faea2a5d325e73f2e746acdb4736a6d5e4fe17a88d15e1dc00f39ad9fc7d29e
76 Risk Score

Malware Insights

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

The PDF file contains embedded JavaScript, indicated by multiple heuristic firings including 'PDF_JAVASCRIPT' and 'PDF_JS'. The ClamAV detection 'Pdf.Exploit.Agent-36128' strongly suggests this is a known exploit. The embedded JavaScript is likely responsible for executing the exploit, leading to a malicious outcome. No specific family could be identified from the available evidence.

Heuristics 3

  • ClamAV: Pdf.Exploit.Agent-36128 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-36128
  • 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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
javascript_obj0008_000.js
48f5500560db5bd4b4accad33f3cb2da842fd03aecb3dc25461707570cdc678d		 pdf-javascript-stream PDF /JS object 8 at offset 0x1E7 45305 bytes
legacy_pdfkit_stage_000.js
fc503d8f261b48237fa5cb54fbf1b440374ce042cba239198460b713461d0f8c		 deobfuscated-js double percent-decoded annotation JavaScript at offset 0x1E7 33047 bytes

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