Malicious PDF — malware analysis report

Static analysis result for SHA-256 4feac509a25ba436…

MALICIOUS

PDF

3.2 KB
MD5: 00611c657881854eef987201f73c8807 SHA-1: c6fb88cddc8a15310d1e83ad4701f3c9d713d378 SHA-256: 4feac509a25ba436270682352346a596381800653f5a743b215ce7b17cd639a7
76 Risk Score

Malware Insights

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

The PDF file contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. ClamAV detection as Pdf.Exploit.Agent-36121 confirms its malicious nature. The embedded JavaScript is likely responsible for downloading and executing a second-stage payload, a common technique for PDF-based malware delivery.

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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
javascript_obj0007_000.js
dca542fe50d928435af6f8708ca0c3975c5f23466fa270671fdf7563554b76e0		 pdf-javascript-stream PDF /JS object 7 at offset 0x9C4 504 bytes
stream_000_off00000152.bin
a8e65e5cdc52b131e7ca6c943814f18da30109510675de3b9cc0beda93651088		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x152 11738 bytes

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