PDF malware analysis — malicious · 3dd7f03aae209e7b

MALICIOUS

PDF

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

MD5: 498227ceb045d547f39df9b94e2c4156 SHA-1: e2b07a718ce6ee761e076c9831b5d1516cd888aa SHA-256: 3dd7f03aae209e7bb3130c10c4b8d3ad6266441c9f61afef361904c8649d404a

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 the use of eval() and string concatenation. Heuristics indicate a PDF JavaScript action and an embedded JS stream, with a critical ClamAV detection for Pdf.Exploit.Agent-36118. The script's obfuscated nature and the presence of eval() strongly suggest it's designed to download and execute a secondary payload, a common technique for malware delivery. The exact payload or C2 is not discernible due to the heavy obfuscation.

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` `91f4b2474c369b6c3201f278e99e9c164a8132a695f2440ce3149480ca21b5ce`	pdf-javascript-stream	PDF /JS object 13 at offset 0x336	13407 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s).

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