PDF malware analysis — malicious · aeeba77428813e2f

MALICIOUS

PDF

26.2 KB Created: 2011-72-51 03:25:00

MD5: e965d9fa7d6a28f3b0cb5957a2e1fd35 SHA-1: c262a495c8fd417f80da40ec7c6b4b195de2bee6 SHA-256: aeeba77428813e2fa703924cd70dd1dcd2cad5069c54f0ac31b08d7bce6450c0

90 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell

The PDF contains embedded JavaScript, which is flagged as suspicious by multiple heuristics including a high-severity eval() call. The ML classifier also strongly indicates maliciousness. The JavaScript is obfuscated, making its exact function difficult to determine, but the presence of eval() suggests dynamic code execution, likely to download and run a secondary payload. No document body text was available for further context.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

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_obj0001_000.js` `b485c077e5b01d94575c425ffab18a82dfe41c6bf5d54301e9143852bd0bd082`	pdf-javascript-stream	PDF /JS object 1 at offset 0x646F	913 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s).

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