PDF malware analysis — malicious · 802f758a85688bd5

MALICIOUS

PDF

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

MD5: a408311cb10699a71833a6c005391546 SHA-1: c42263347ee224081f1b794a67f93bd730d20a36 SHA-256: 802f758a85688bd5f4178975a6867fef28adfb9dd5ba21276497f2ac2bcd43be

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 eval() calls, as indicated by the PDF_JAVASCRIPT, PDF_JS, and PDF_EVAL heuristics. The ClamAV detection 'Pdf.Exploit.Agent-36118' strongly suggests a known exploit. The primary function of the obfuscated JavaScript appears to be the execution of further malicious code, likely a downloader for 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` `59d807a1206d34343a924992edd31ebe37c7c60714e921379210fce781dac43e`	pdf-javascript-stream	PDF /JS object 13 at offset 0x336	13691 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s).

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