Malicious PDF — malware analysis report

Static analysis result for SHA-256 ad40a99242977265…

MALICIOUS

PDF

2.7 KB Created: 1729-01-01 Authoring application: 1387
MD5: ac0b8bafe100fc4bdcd8fbde6c94e503 SHA-1: c7b4928d50d60d9582cfa0aa39cba01ffdd20ca0 SHA-256: ad40a9924297726531692ae055c54b31a9b8a720abe594b22e93ac0432f30cbf
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. ClamAV detected this as Pdf.Exploit.Agent-36014, suggesting it exploits known PDF vulnerabilities. The embedded JavaScript, extracted as javascript_obj0013_001.js, is obfuscated and likely responsible for delivering the exploit 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
f841c36b5abd1d80efc140622caa0825e2de58d0374cfd9b969e7ce9ae888db9
pdf-javascript-stream PDF /JS object 13 at offset 0x328 4769 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).