Malicious PDF — malware analysis report

Static analysis result for SHA-256 3d8e06b9c4e70891…

MALICIOUS

PDF

2.7 KB Created: 1537-01-01 Authoring application: 6301
MD5: 8262be3485da5c151705d2732be9713f SHA-1: 6998e9fa75aca71a1a071a705415049e011bd25c SHA-256: 3d8e06b9c4e70891a0684aca346870d820d7a65c2cf0a720f662fd2710c928ff
96 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF file contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. The ClamAV detection 'Pdf.Exploit.Agent-36014' strongly suggests a known exploit. The extracted artifact 'javascript_obj0013_001.js' likely contains the malicious script responsible for the exploit, although its specific actions are not detailed in the provided evidence. Further analysis of the script would be required to determine the exact payload delivery mechanism.

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
bfaed007436dc6b2669beae0ff52fac04f308f6ca1bfbd98b7ddcf1a82f7268a
pdf-javascript-stream PDF /JS object 13 at offset 0x328 4802 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).