Malicious PDF — malware analysis report

Static analysis result for SHA-256 891213353211eb51…

MALICIOUS

PDF

2.7 KB Created: 1497-01-01 Authoring application: 9900
MD5: a6da05f52c6cdaa59bd0eefb20edda69 SHA-1: 9f6f80d512885b1d624a01a86c4d264a32360d95 SHA-256: 891213353211eb51565016987f6c78a13e57b0a413761000cbb05c7fcde6977e
96 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The file is a PDF identified by ClamAV as Pdf.Exploit.Agent-36014. Static analysis detected embedded JavaScript with obfuscation indicators, suggesting it attempts to exploit a vulnerability within the PDF reader. The JavaScript is likely responsible for downloading and executing a second-stage payload.

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
82d560d9beadbda1361bd3a3f1d9cb8c4fb53a77d286cfef52735046b419e7d7
pdf-javascript-stream PDF /JS object 13 at offset 0x328 4782 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).