PDF malware analysis — malicious · 99be533411b314b1

MALICIOUS

PDF

2.7 KB Created: 9877-01-01 Authoring application: 8427

MD5: d9ae2d8bddd9e09eb9e6029d9fa0caf6 SHA-1: 2eb4f144049c1361d0954af634625482db5079c9 SHA-256: 99be533411b314b17baa47bf407bc6b00c1550d139fc79db1668c5070c1a4354

126 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. The ML classifier and ClamAV detection strongly suggest malicious intent, specifically targeting PDF exploits. The extracted JavaScript file, 'javascript_obj0013_001.js', likely contains the malicious code responsible for the exploit, potentially downloading 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` `fb7b1d064d8a32d9c07cae88f6459bcfba3b9f526592fbdfbb42336b9619f73d`	pdf-javascript-stream	PDF /JS object 13 at offset 0x328	4798 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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