PDF malware analysis — malicious · 25b84728a1002167

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: 3c040eb5ff1dca9e61bbca72fe819382 SHA-1: 3c664f318be320842ec4a8a3eb26010c75634713 SHA-256: 25b84728a100216727eff1ba5e6c6df7e2b987e11c165978e34ab9032e2c21d6

118 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1059.007 JavaScript

The PDF file contains embedded JavaScript with multiple obfuscation techniques, including string concatenation and the use of eval(). Heuristics indicate PDF JavaScript actions and eval() calls, with ClamAV detecting it as Pdf.Exploit.Agent-36118. The script's eval() calls and string manipulation suggest it is designed to download and execute a secondary payload, which is a common technique for malware delivery.

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` `8f7f61864b5a86a4d56e5356eed4f74d25f5d7e4138569d06cd0d72c798ae71d`	pdf-javascript-stream	PDF /JS object 13 at offset 0x336	13584 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s).

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