Malicious PDF — malware analysis report

Static analysis result for SHA-256 e18de4df51a5f214…

MALICIOUS

PDF

2.7 KB Created: 7158-01-01 Authoring application: 7193
MD5: 6cd62b707f853263e645cc119097430c SHA-1: 5239abe9e803218ece692bb9ee1defb7132152fb SHA-256: e18de4df51a5f214fd9887949b7aa828095550ba25ab0ab8cc09b43fb1c052b1
96 Risk Score

Malware Insights

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

The file is a PDF containing embedded JavaScript, as indicated by multiple heuristic firings and the presence of an embedded JavaScript file. The ClamAV detection 'Pdf.Exploit.Agent-36014' strongly suggests exploitation of a known PDF vulnerability. The embedded JavaScript is likely responsible for downloading and executing a secondary payload, which is a common attack pattern for PDF exploits. The document body is unreadable, providing no further context.

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
65fe3528cabb72b92d1e5bc179846087f6fa2cb3add48a392b853774d16646a5
pdf-javascript-stream PDF /JS object 13 at offset 0x328 4771 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).