PDF malware analysis — malicious · db4d483ea5d5837a

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: 66baa9a08662e066eee5ac45ebe70689 SHA-1: a8543e4cabb70549a2cf2f71c45d75f8c533756a SHA-256: db4d483ea5d5837a2b6557af9e3e4d012df43ca35cfe72e568fa2ec177dd52b7

118 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript with multiple obfuscation layers, including the use of eval() and character code manipulation. Heuristics indicate a PDF JavaScript action and an eval() call, strongly suggesting the execution of malicious code. The ClamAV detection as 'Pdf.Exploit.Agent-36118' further confirms its malicious nature. The script's complexity and use of eval() point towards it downloading and executing a secondary 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` `5e36debc1a5bd49e8f454d44d95a753cf6b343615e658c046b13005eed5f4b11`	pdf-javascript-stream	PDF /JS object 13 at offset 0x336	13466 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s). Carved artifact contains 4 long base64-like blob(s).

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