PDF malware analysis — malicious · 453b1863beed85c1

MALICIOUS

PDF

5.4 KB Created: 2008-09-24 19:47:56 Authoring application: Adobe (via Notepad)

MD5: 2c00fae53af5601cc4ddb3f3ef08e9e4 SHA-1: 374958198fd736c7696708d08d3ff7976476aa15 SHA-256: 453b1863beed85c1ca192b226f94d458473812d4ec424cd3bf94e638ad705ebb

150 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript, indicated by multiple heuristic firings including PDF_JAVASCRIPT, PDF_JS, and PDF_EVAL. The ML classifier and ClamAV detection strongly suggest malicious intent, specifically targeting a PDF exploit (Pdf.Exploit.Agent-1776). The embedded JavaScript, likely obfuscated, is designed to execute arbitrary code, which is a common technique for downloading and running further malicious payloads.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 5

ClamAV: Pdf.Exploit.Agent-1776 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-1776
eval() call high PDF_EVAL

eval() found — commonly used for obfuscated exploit execution (matched inside decoded stream)
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_obj0006_000.js` `afa7abd578a1b910d2d9c59e24b37009dbb3e195977e932d6612f7589b30c2b7`	pdf-javascript-stream	PDF /JS object 6 at offset 0x12E7	136 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s).

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