Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae1ba221ee79718e…

MALICIOUS

PDF

2.7 KB Created: 2568-01-01 Authoring application: 3323
MD5: 234f94ba08662dd704a88fd7d7338324 SHA-1: 7b11c2074cc7a9e883517cbfc8cb377fdea8a7a2 SHA-256: ae1ba221ee79718e4dfd1e8f3650030e52e635b06a53c5337cc6001cc9bb58c2
96 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. The ClamAV detection 'Pdf.Exploit.Agent-36014' strongly suggests this is a known exploit. The extracted artifact 'javascript_obj0013_001.js' shows signs of obfuscation, typical of malware attempting to hide its malicious actions. The script likely downloads and executes 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
30451edd8925ef838034a1593bea1f63be18785b58d0e0f1e5384598d2934f6b
pdf-javascript-stream PDF /JS object 13 at offset 0x328 4798 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).