PDF malware analysis — malicious · 9841b67c3e1e24ed

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: 09d00460f534af87a9de27aac6c4f7b7 SHA-1: 702c054a3ddba2f2c4cceb598505fc73225456a6 SHA-256: 9841b67c3e1e24edb3746b2340c018b87b90f11f0c66367f6dd5a7a763370ced

118 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File T1566.002 Spearphishing Attachment

The PDF file contains embedded JavaScript with multiple eval() calls, indicating obfuscated code execution. The ClamAV detection 'Pdf.Exploit.Agent-36118' strongly suggests a known exploit. The JavaScript is designed to execute arbitrary code, likely downloading and running a secondary payload, which is a common technique for initial access and further compromise.

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` `c9eadcd1c8f0a585fd3a8e034f53a5a2d0679d5bfcaa16a07d7c0a58a5f5012b`	pdf-javascript-stream	PDF /JS object 13 at offset 0x336	13489 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s). Carved artifact contains 11 long base64-like blob(s).

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