PDF malware analysis — malicious · 5040a7616314c4df

MALICIOUS

PDF

16.0 KB Created: 2009-05-19 18:21:32 Authoring application: gJlMqtZWSuIQnJZTGSYJWf (via YilfsVsSJUUfqhkF)

MD5: 9c299c83b6356a8628566c4c4908b97a SHA-1: cec3f20c1b2a86061a189418c852767c07d60314 SHA-256: 5040a7616314c4df6feba1697761b404b182703a022eedca471829f29ab4fe8d

108 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The sample is a PDF file flagged by ClamAV as 'Pdf.Exploit.Agent-35572' and a machine learning classifier with high confidence. Heuristics indicate the presence of embedded JavaScript, which is a common vector for exploiting PDF vulnerabilities. The ML classifier's high score and the ClamAV detection strongly suggest this PDF is designed to deliver a malicious payload.

Machine Learning

Nyx PDF Classifier malicious score 0.9999

Heuristics 4

ClamAV: Pdf.Exploit.Agent-35572 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-35572
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.
Suspicious extracted artifact info 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.

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0007_000.js` `61a10c5c1fe45b100708e9a8fbbc199620b079f71a7a40176bda76b943a0d5bb`	pdf-javascript-stream	PDF /JS object 7 at offset 0x52D	14326 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s). Carved artifact contains 28 long base64-like blob(s).

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