PDF malware analysis — malicious · b25a3243a621732d

MALICIOUS

PDF

2.7 KB Created: 5299-01-01 Authoring application: 8238

MD5: eb930483cd4f876a7f905277fee1c9ad SHA-1: 3043aff8286ecad7388aa005109fd1927319ced3 SHA-256: b25a3243a621732d1ef04ddf8777aa72300dac99a0d2a1ff29c63271f2d706fe

126 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file was flagged as malicious by ClamAV and an ML classifier, indicating a high likelihood of exploitation. Embedded JavaScript, identified as 'javascript_obj0013_001.js', suggests an attempt to execute malicious code. The presence of JavaScript actions and streams within the PDF structure further supports this. The ML classifier's output of 0.999994 provides strong confidence in the malicious nature of the file.

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` `e1bbe880170330eaf573768153f762c10bc8da63df237aeb6006e49434e79299`	pdf-javascript-stream	PDF /JS object 13 at offset 0x328	4816 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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