PDF malware analysis — malicious · dc89657de2b36581

MALICIOUS

PDF

2.7 KB Created: 2191-01-01 Authoring application: 8854

MD5: daec409d57cafb549306855d312127a9 SHA-1: 404db6c7021f44a512fbe6e1d1e387aecb63588c SHA-256: dc89657de2b365811b3533b94953ef37045badb4be6892df07ccb95f8a159157

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. The extracted JavaScript file, 'javascript_obj0013_001.js', likely contains obfuscated code designed to exploit vulnerabilities within the PDF reader, leading to the execution of a malicious payload. The ML_NYX_PDF_MALICIOUS score of 0.999994 further reinforces the high likelihood of malicious activity.

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` `bc9dabe9bf190cebaa595bf587f6ae08f4f402e37bb1e5eaf8931eb7f7b4dc11`	pdf-javascript-stream	PDF /JS object 13 at offset 0x328	4804 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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