Malicious PDF — malware analysis report

Static analysis result for SHA-256 b7a5308c992d6720…

MALICIOUS

PDF

2.7 KB Created: 1843-01-01 Authoring application: 363
MD5: 125ff95260987267138467fcf22ee069 SHA-1: 7f1c22c7c3bc9b4b9cac2bf03c052a36b66f2dfb SHA-256: b7a5308c992d6720c5d667da3fac3fedd4443ceef63f1e5083c8b425da0d8201
96 Risk Score

Malware Insights

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

The PDF file contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. ClamAV detection as 'Pdf.Exploit.Agent-36014' confirms its malicious nature. The extracted JavaScript file, 'javascript_obj0013_001.js', shows signs of obfuscation, suggesting it's designed to perform malicious actions such as downloading 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
5712d766a09dd63615181b9f20ab2fcfad7fdd5eed1f9ce05be20a2f17c562d9
pdf-javascript-stream PDF /JS object 13 at offset 0x328 4793 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).