Malicious PDF — malware analysis report

Static analysis result for SHA-256 ff70b564711941c4…

MALICIOUS

PDF

2.7 KB Created: 5728-01-01 Authoring application: 3274
MD5: d4eb9587d07c78ff182dc7bef54de51d SHA-1: ac8079781cdc913d1801d4158a3937ee65e0b7b2 SHA-256: ff70b564711941c4953d6b0bb7c8bf6baffed4518384e22176116c25bbc3a31b
96 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 JavaScript T1559.001 Component Object Model

The PDF file contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. The CLAMAV_DETECTION heuristic identifies it as Pdf.Exploit.Agent-36014, suggesting it exploits a known vulnerability. The extracted JavaScript file, javascript_obj0013_001.js, is likely responsible for the malicious payload delivery. The obfuscation within the JavaScript stream further supports its malicious intent.

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
1c28e70b6d569dff52987b2d643525cba06ff30e551c1e988eb0723e39a12414
pdf-javascript-stream PDF /JS object 13 at offset 0x328 4814 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).