PDF malware analysis — malicious · 50bb3aef6c4313c6

MALICIOUS

PDF

2.7 KB Created: 2998-01-01 Authoring application: 8087

MD5: 98033978a9487242e5f05599b0dbcad2 SHA-1: 0a9ff288b3e001913ae95595c739562f81a156e1 SHA-256: 50bb3aef6c4313c66a63d37d4e45eff93830a11a002fb9ef937697496e0b5a1a

126 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell

The PDF file was flagged as malicious by ML classifiers and ClamAV, indicating it contains an exploit. A JavaScript stream was extracted, which likely contains obfuscated code designed to download and execute a second-stage payload. The presence of JavaScript actions and embedded JS streams points to the use of T1059.001 (PowerShell) or T1059.005 (Visual Basic) for execution.

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` `b69fa000f7c7469ee54129840af4724552c3b530da27b52ca20478f9d66b16de`	pdf-javascript-stream	PDF /JS object 13 at offset 0x328	4742 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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