PDF malware analysis — malicious · f6630ea73f2fe590

MALICIOUS

PDF

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

MD5: d7b71231f30aadeb71470422750c7aa5 SHA-1: 9cab0dd17cec5baceb6c58580cc5a418e0cf0f88 SHA-256: f6630ea73f2fe59034e70ea3213544aab08e6c5b38e101f92790d6237ae6b38c

88 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell

The PDF contains embedded JavaScript, flagged by multiple heuristics including PDF_JAVASCRIPT, PDF_JS, and PDF_EVAL. The ML classifier strongly indicates maliciousness. The embedded JavaScript, named javascript_obj0001_000.js, is likely responsible for executing the malicious payload. The exact intent of the script is unclear due to potential obfuscation, but its presence within a PDF and the high ML score suggest a delivery mechanism for further malicious activity.

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` `7bd45beeb5d4cefe8609a28602e1a75d6a47c1a5e9a444fc03c729393abfdabc`	pdf-javascript-stream	PDF /JS object 1 at offset 0x64D0	847 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s).

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