PDF malware analysis — malicious · e20b87da0a05e6f4

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: bd0b000a5cca0cd778758de74208572b SHA-1: 7d4edc8a70ad8aa3086e1fac6f4b621d8281ab8b SHA-256: e20b87da0a05e6f4b2b2173b11387358abbb5f43fcae8661eb571a5ed85c8255

148 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

This PDF file was flagged as malicious by ClamAV and an ML classifier, indicating a high likelihood of exploit. Embedded JavaScript, including an eval() call, was detected, suggesting the execution of arbitrary code. The script likely attempts to download and execute a second-stage payload, as indicated by the heuristic 'Suspicious extracted artifact — Signals: Long encoded blob, Script obfuscation indicators'.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

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` `f132ed88ca3eeab96f0f39c582cc536e9f171e420bfc389b73f08a2389ebc4cf`	pdf-javascript-stream	PDF /JS object 13 at offset 0x336	13644 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s). Carved artifact contains 6 long base64-like blob(s).

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