PDF malware analysis — malicious · 42cf4a3c587a9748

MALICIOUS

PDF

2.7 KB Created: 6393-01-01 Authoring application: 1414

MD5: f8e5d0a0e228686ee4c0fc568a0c978e SHA-1: 508f73f8237c036accfd43f75d1276c9159806d2 SHA-256: 42cf4a3c587a97486c55caa9c420bf8af89308e1c0f34b257d40045fe3c4f911

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 (Pdf.Exploit.Agent-36014). Static analysis revealed embedded JavaScript, which is often used to deliver exploits or download second-stage payloads. The ML classifier's high confidence score and the presence of JavaScript strongly indicate an exploit attempt within the PDF.

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` `7d3f888476a1a5f351f9a554c06128720cf58e3736701c48656d8c522bcc3dc8`	pdf-javascript-stream	PDF /JS object 13 at offset 0x328	4812 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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