PDF malware analysis — malicious · d5386d951c92deec

MALICIOUS

PDF

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

MD5: 1af31f75ad6a5abba7b46aeb841ec0b8 SHA-1: d50ed11d7180cedef0838117efba7d7eab89b1eb SHA-256: d5386d951c92deec1c5ce07339879814951347a00b01bce1011eee0d0efc31cb

118 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

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 complexity and the presence of eval() suggest it's designed to download and execute a secondary payload, a common technique for initial access.

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` `5d77b747c14c19dd426962763e34dbade6860d8f8c3ce86641c0b7a7666d520e`	pdf-javascript-stream	PDF /JS object 13 at offset 0x336	13316 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s). Carved artifact contains 15 long base64-like blob(s).

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