PDF malware analysis — malicious · 98137e7b8aed76d8

MALICIOUS

PDF

2.6 KB Created: 2008-31-20 53:85:00 Authoring application: aaaaaaaa

MD5: 14bea87f070f5df85842187257e79b77 SHA-1: 9ba476f1c13517c7c9e1815407c8809d52ee26cf SHA-256: 98137e7b8aed76d82961a2306a210b3286b19db6761602c02d2d222850fc7d74

108 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file was flagged as malicious by ML classifiers and ClamAV, specifically identified as Pdf.Exploit.Agent-36014. Static analysis revealed embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. The presence of an obfuscated JavaScript file (javascript_obj0013_001.js) suggests it is likely used to download and execute a second-stage payload. The ML classifier output of 0.999994 further supports a high likelihood of malicious intent.

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
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_obj0013_001.js` `017e1ab79ec671dd26a1c6e0ffa063434b2fec09248ae216cc7615c8cfc50dbc`	pdf-javascript-stream	PDF /JS object 13 at offset 0x328	4003 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 6 eval/decoder/string-building token(s).

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