MALICIOUS
78
Risk Score
Malware Insights
MITRE ATT&CK
T1059.001 PowerShell
T1566.001 Spearphishing Attachment
T1204.002 Malicious File
The file is a PDF containing obfuscated JavaScript, as indicated by multiple heuristic firings including ClamAV's detection of 'Heuristics.PDF.ObfuscatedNameObject'. The embedded JavaScript, named 'javascript_obj0010_000.js', is the primary mechanism for exploitation. The exact function of the script is unclear due to obfuscation, but its presence strongly suggests an attempt to download and execute a second-stage payload or perform other malicious actions.
Heuristics 4
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ClamAV: Heuristics.PDF.ObfuscatedNameObject critical CLAMAV_DETECTIONClamAV detected this file as malware: Heuristics.PDF.ObfuscatedNameObject
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JavaScript action low PDF_JAVASCRIPTPDF contains a /JavaScript action. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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Suspicious extracted artifact info EXTRACTED_FILE_STATIC_TRIAGEOne 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_obj0010_000.js2c5522e807b63b772d04981ce7060edb9be4bf1d8e75e0273768f249d0a5dae4 |
pdf-javascript-stream | PDF /JS object 10 at offset 0x11BD | 1914 bytes |
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Detection
ClamAV:
No threats found
Obfuscation or payload:
likely
Carved artifact contains 1 eval/decoder/string-building token(s).
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