PDF malware analysis — malicious · b460622b0fc80e54

MALICIOUS

PDF

2.7 KB Created: 2008-12-17 23:30:58 UTC

MD5: dd544515f47000e552501e00060ab007 SHA-1: d22a3e6ad57488f98a3f3bc1c9efe13f0b594722 SHA-256: b460622b0fc80e547e59ab7b5b858a6d3ac2c0d927e8884e26846ca6034cf065

88 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell

The PDF contains embedded JavaScript with an eval() call, which is a strong indicator of malicious intent. The ML classifier also flagged this PDF with high confidence. The JavaScript is obfuscated, making it difficult to determine the exact payload, but the presence of eval() suggests it attempts to execute arbitrary code. The PDF structure itself does not provide further clues beyond the embedded script.

Machine Learning

Nyx PDF Classifier malicious score 0.9998

Heuristics 4

eval() call high PDF_EVAL

eval() found — commonly used for obfuscated exploit execution (matched inside decoded stream)
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_obj0006_000.js` `4934855e892a7fd95c15cb49b91f100cbb7dbf70eac86b4c5b6d9c9a03ba0156`	pdf-javascript-stream	PDF /JS object 6 at offset 0xB5	3793 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s).

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