Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2b6004177a4efdf…

MALICIOUS

PDF

2.7 KB Created: 9026-01-01 Authoring application: 5463
MD5: 42ab87acc822fa6bd454cd3772a63a25 SHA-1: 06ebf64edbc9226c9722711a5b791e06ca85dbbf SHA-256: d2b6004177a4efdf8b22dbb8be532e37913cb6eb251522a120ed8cf6f635c289
96 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF file contains embedded JavaScript, indicated by multiple heuristic firings including 'PDF_JAVASCRIPT' and 'PDF_JS'. ClamAV also detected the file as 'Pdf.Exploit.Agent-36014'. The embedded JavaScript file 'javascript_obj0013_001.js' shows signs of obfuscation, suggesting it is used to deliver a malicious payload. The exact nature of the exploit is unclear due to obfuscation, but the presence of JavaScript in a PDF commonly leads to exploit execution.

Heuristics 4

  • ClamAV: Pdf.Exploit.Agent-36014 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-36014
  • Suspicious extracted artifact medium EXTRACTED_FILE_STATIC_TRIAGE
    One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.
  • 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_obj0013_001.js
d608e4b94e5913d15ba3558321db2641ea2a7a2ee8fb3be9d96d2674f113242e		 pdf-javascript-stream PDF /JS object 13 at offset 0x328 4794 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 10 eval/decoder/string-building token(s). Carved artifact contains 3 long hex-escaped blob(s).

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