PDF malware analysis — malicious · 53a8f41878eaa1ca

MALICIOUS

PDF

2.7 KB Created: 5766-01-01 Authoring application: 8169

MD5: e57c7fa291bad8ed976dbad4e645a0dc SHA-1: 54825d58086a456bec86b0d721f9e78d8b95c1b2 SHA-256: 53a8f41878eaa1ca67fe280c5296eb3293eb0ba77b260aeec64d88ff1b9faa00

126 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF was flagged as malicious by ML classifiers and ClamAV, indicating it contains exploit code. Heuristics confirm the presence of embedded JavaScript, which is often used to download and execute further stages. The extracted JavaScript file, 'javascript_obj0013_001.js', is the primary artifact associated with the 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` `9d39490b6c655b0a8237052f993b9aa61050fc6bb80dad60e712956c7a947aa2`	pdf-javascript-stream	PDF /JS object 13 at offset 0x328	5224 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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