Malicious PDF — malware analysis report

Static analysis result for SHA-256 59c20a23dabb7a9e…

MALICIOUS

PDF

2.7 KB Created: 941 Authoring application: 3963
MD5: c02d22c91a6944901722a6354205b807 SHA-1: 65fc1a90c1e48ad901a9297f39edc88e1dcad770 SHA-256: 59c20a23dabb7a9e216e26ff66cb0f4f8377810d072260801b7dda71a820a793
96 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: Malicious File

The PDF file contains embedded JavaScript, indicated by multiple heuristics and the presence of an extracted JavaScript file. The ClamAV detection 'Pdf.Exploit.Agent-36014' strongly suggests this is a malicious PDF exploiting a known vulnerability. The embedded JavaScript is the likely mechanism for delivering a secondary payload, although its specific actions are not detailed in the provided evidence.

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
d4fecdece05ef6801feae133c0ad9be2cfe1ff93cb8a1a42cf6305f08d203dfa
pdf-javascript-stream PDF /JS object 13 at offset 0x328 4789 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).