PDF malware analysis — malicious · c58437ad998f531a

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: 3f0d6d09bdfe1ed483291174b4aee519 SHA-1: 72aefd05ff7da1665c673863fa34a25f2c468ae6 SHA-256: c58437ad998f531afd502cdc74681031ee1bfd4aeb445eaf33df54f79194ccdf

118 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript that utilizes eval() to execute obfuscated code. This is a common technique for delivering second-stage payloads. The ClamAV detection 'Pdf.Exploit.Agent-36118' and the heuristic firing for eval() confirm the malicious nature. The embedded JavaScript stream, named 'javascript_obj0013_000.js', is the primary artifact responsible for the exploit.

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` `7af13777b2f89139fc3961046f2647f455074251830c171f6ad479d64d7ee51d`	pdf-javascript-stream	PDF /JS object 13 at offset 0x336	13385 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s). Carved artifact contains 1 long base64-like blob(s).

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