PDF malware analysis — malicious · 3fc2554912c539f4

MALICIOUS

PDF

2.7 KB Created: 9886-01-01 Authoring application: 3453

MD5: fb7521e6a5bf6951b2107e65789501b4 SHA-1: fc8fbe608351a713e50ce95b7b58095378c07994 SHA-256: 3fc2554912c539f419a665ee70255bb25651797835877f9000237e59f1dcd50c

126 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file was flagged as malicious by a ClamAV signature (Pdf.Exploit.Agent-36014) and a machine learning classifier. It contains embedded JavaScript, which is often used to exploit vulnerabilities within PDF readers. The extracted JavaScript artifact shows signs of obfuscation, suggesting it is designed 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` `c6d4acc0b16c6fbf3973d4a902b44a03695856947d3340f59a14ad244480ec98`	pdf-javascript-stream	PDF /JS object 13 at offset 0x328	5048 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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