PDF malware analysis — malicious · b41c8710e4a574de

MALICIOUS

PDF

2.7 KB Created: 6759-01-01 Authoring application: 8732

MD5: a01cd0bf77f0288e0939c85dbb7ac47e SHA-1: 0bfecd06fa64af431d7ceb8c49908b0a9731079b SHA-256: b41c8710e4a574de757548789196b6cdf74a13f79c7c9c9b0ae9339a34dd3026

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 exploit vulnerabilities within the PDF reader. The extracted JavaScript file, 'javascript_obj0013_001.js', likely contains the malicious code responsible for executing the exploit and potentially downloading a second-stage payload. The obfuscation indicators within the extracted artifact further support its malicious nature.

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` `b280c162069d077d2107e2a4fe812b46dd17395de8aedba7291ad2603751e8ab`	pdf-javascript-stream	PDF /JS object 13 at offset 0x328	4769 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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