PDF malware analysis — malicious · ae263a836642c8c0

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: 17bbea08beeb6d89cdc7d9843e3957a8 SHA-1: 555db54f52f49d292c2567c2c2ab0ee335bd5302 SHA-256: ae263a836642c8c0e9c67f350476d1f13d66c38555007e5150b52a748446eca6

118 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 JavaScript/JScript T1204.002 Malicious File

The PDF file contains embedded JavaScript with multiple obfuscation layers, including string concatenation and eval() calls. Heuristics indicate the presence of JavaScript actions and eval() usage, strongly suggesting the execution of malicious code. The ClamAV detection of 'Pdf.Exploit.Agent-36118' confirms its malicious nature. The script's obfuscated nature and eval() usage point towards it downloading and executing a secondary payload, 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` `d4af88ae6e873906610eb33d845c9346e7f163b64e2e72da88f0dca6d5b7dec2`	pdf-javascript-stream	PDF /JS object 13 at offset 0x336	13334 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s).

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