PDF malware analysis — malicious · 1c00c5fcaaea2db1

MALICIOUS

PDF

2.7 KB Created: 209 Authoring application: 1461

MD5: 2a79020d906a5f3801ad31d6bc16185a SHA-1: 898da762837f822e925ba13548d53c3e18d45878 SHA-256: 1c00c5fcaaea2db10d821d9646c7a936e6150dedb573ecbc38839e907b2de93a

128 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 JavaScript/JScript T1204.002 Malicious File

The PDF contains embedded JavaScript, indicated by multiple heuristic firings and the presence of an extracted JavaScript file. The ML classifier and ClamAV detection strongly suggest malicious intent, specifically targeting PDF vulnerabilities. The extracted JavaScript file, named 'javascript_obj0013_001.js', likely contains the malicious code responsible for exploiting the PDF vulnerability and executing further actions, such as downloading additional malware.

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` `5956d2528bd89918794359fa974f3507daf21484f2d5487863b9243827e7c619`	pdf-javascript-stream	PDF /JS object 13 at offset 0x328	4747 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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