PDF malware analysis — malicious · 4a5f88917815d176

MALICIOUS

PDF

2.7 KB Created: 212 Authoring application: 4468

MD5: f0620e718047f52e72ae8b0abbded1af SHA-1: 774800f633328373183881c1cb4cb505fc84bd88 SHA-256: 4a5f88917815d176efc476ab32c7c1b17805aaad5ae27b3d16dcacce3721982b

126 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file was flagged as malicious by multiple engines, including a high-confidence ML classifier and ClamAV, which identified it as Pdf.Exploit.Agent-36014. Static analysis revealed embedded JavaScript, indicated by PDF_JAVASCRIPT and PDF_JS heuristics, and a suspicious extracted artifact named 'javascript_obj0013_001.js' exhibiting obfuscation. This suggests the PDF likely exploits a vulnerability to execute embedded JavaScript, which in turn is expected to download and execute a second-stage payload.

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` `c78c53925ee467dbe772fe4fbf6e164c740978119e621ee6fa05d6cb259172cb`	pdf-javascript-stream	PDF /JS object 13 at offset 0x328	4814 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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