PDF malware analysis — malicious · 4a513e090bca4729

MALICIOUS

PDF

2.7 KB Created: 7278-01-01 Authoring application: 9560

MD5: db3ca14edd87fbd078e0f5f42e6457cf SHA-1: 57f72e3b99d522f1b4d54097b710ec08d6a96092 SHA-256: 4a513e090bca4729b00ec24cc799f30571d172c941c1dc41e960dc4aff45e356

126 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file was flagged as malicious by ML classifiers and ClamAV, indicating it contains an exploit. A JavaScript stream was extracted, which likely contains obfuscated code designed to execute a second-stage payload. The presence of JavaScript actions and embedded JS streams points to an attempt to leverage these features for malicious purposes.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 4

ClamAV: Pdf.Exploit.Agent-36014 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-36014
Suspicious extracted artifact medium 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.
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.

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0013_001.js` `b4dc1096dc7b9822e31f262bb9917a72ef277a2d45e366e9cb63b9b108079806`	pdf-javascript-stream	PDF /JS object 13 at offset 0x328	4794 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 10 eval/decoder/string-building token(s). Carved artifact contains 3 long hex-escaped blob(s).

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