PDF malware analysis — malicious · faef651a37ba33e0

MALICIOUS

PDF

2.7 KB Created: 3735-01-01 Authoring application: 9279

MD5: bc5dad0a5a851764f372fbe1a9315822 SHA-1: 938c9b0e4a421216bb76745f974cc26392403f32 SHA-256: faef651a37ba33e09ec6e26d8276ccc7c62514d5c992cc9dbb1753968e2270ab

126 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF was flagged by ClamAV as Pdf.Exploit.Agent-36014 and a machine learning classifier with high confidence. Heuristics indicate the presence of JavaScript actions and embedded JS streams, with one JS file extracted. The ML classifier's output suggests a high probability of maliciousness, likely involving an exploit within the PDF structure to execute the embedded JavaScript.

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` `f7d76599ea9381dbeced43f2ad4ce70885f81975c21f28dce8f461cfa41d1931`	pdf-javascript-stream	PDF /JS object 13 at offset 0x328	4764 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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