PDF malware analysis — malicious · 3a2deb74de35a789

MALICIOUS

PDF

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

MD5: 960c8a792112a5e557a26ce4119ae172 SHA-1: f4a267ff3ea1d1e0ab2c599f9c327083c3746168 SHA-256: 3a2deb74de35a789aa61a9f503f7ab849d4cccbee2b7701ca0b931e3d7328b89

118 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell

The PDF file contains embedded JavaScript that utilizes eval() to execute deobfuscated code. This is a common technique for exploiting PDF vulnerabilities to achieve arbitrary code execution. The ClamAV detection 'Pdf.Exploit.Agent-36118' further confirms its malicious nature. The script's heavy reliance on eval() and string concatenation suggests it's designed to download and execute a second-stage payload.

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` `ec853f84f1a4a49b84b401e376d7c72f73b298e5fac283716ec01de94f92644f`	pdf-javascript-stream	PDF /JS object 13 at offset 0x336	13445 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s). Carved artifact contains 6 long base64-like blob(s).

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