PDF malware analysis — malicious · 352601b5545ce5c4

MALICIOUS

PDF

14.8 KB Created: 2008-07-26 19:43:58 Authoring application: Scribus 1.3.3.12 (via Scribus PDF Library 1.3.3.12)

MD5: 8494ee1700dd90ed5e9f06d973693619 SHA-1: a3fc0e5f29d0fb963918098cfc0e01c35e40f835 SHA-256: 352601b5545ce5c4b7dd18c00b108e17261c1183531fcbe9682432d74076ed15

118 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1059.007 JavaScript

The PDF file contains embedded JavaScript with multiple obfuscation layers, including string concatenation and eval() calls, as indicated by the PDF_JAVASCRIPT, PDF_JS, and PDF_EVAL heuristics. The ClamAV detection of 'Pdf.Exploit.Agent-36118' strongly suggests a known exploit is present. The script's purpose is to execute arbitrary code, likely downloading and running a secondary payload, which is a common technique for initial access or further system compromise.

Heuristics 5

ClamAV: Pdf.Exploit.Agent-36118 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-36118
eval() call high PDF_EVAL

eval() found — commonly used for obfuscated exploit execution
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.
Suspicious extracted artifact info 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.

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0013_000.js` `81d4b64a72ba928ac837079c1b70da3fee9439e493a2ffdddb6bfef8889185de`	pdf-javascript-stream	PDF /JS object 13 at offset 0x336	13568 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s). Carved artifact contains 26 long base64-like blob(s).

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