Malicious PDF — malware analysis report

Static analysis result for SHA-256 db96ea1f32426ade…

MALICIOUS

PDF

2.7 KB Created: 2434-01-01 Authoring application: 6241
MD5: c7ff2f34418bad1eeaf4e97b3b9c6f44 SHA-1: d6d15c770edf2abbba3045b59c9d624de4c98a7d SHA-256: db96ea1f32426ade29f515dd0454efb75910172917e7426474dec8153cb95fbb
96 Risk Score

Malware Insights

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

The PDF file 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 JavaScript file shows signs of obfuscation, typical for malware attempting to hide its payload. The primary attack vector appears to be exploiting a PDF vulnerability to run this script, which 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
9130d045cea231db30ee5c0a1f44688ad5a481a79948bd5e2bdd4693236c29d0
pdf-javascript-stream PDF /JS object 13 at offset 0x328 4816 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).