PDF malware analysis — malicious · 9cc7d1433e30f5d0

MALICIOUS

PDF

25.8 KB Created: 2006-02-01 14:14:12 Authoring application: Wegoptyr (via HghTc6Fs)

MD5: 2abc857d01bd14a587d60a251e069271 SHA-1: 9d3f2e8c9c66f679b8dadc1d0a3f469336b4a69e SHA-256: 9cc7d1433e30f5d0fcbaa0377934b612f6b3499632088be0c563ad79423d329b

90 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1027 Obfuscated Files or Information

The PDF file contains embedded JavaScript streams, with one heuristic firing indicating an eval() call. The ML classifier strongly flagged this PDF as malicious. The presence of obfuscated JavaScript suggests the intent is to download and execute a secondary payload. No specific family could be identified due to the obfuscation.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 4

eval() call high PDF_EVAL

eval() found — commonly used for obfuscated exploit execution
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 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0007_000.js` `109ea56effe5afdd1851beab5555000b35c19ec312608d02d5da76ef0055d265`	pdf-javascript-stream	PDF /JS object 7 at offset 0x1EE	25333 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 2 eval/decoder/string-building token(s).
`javascript_obj0007_001.js` `03c2be298a291ae91fa604fc4e5c34d6b805c7e9c42025887188dbb0ccf8c86e`	pdf-javascript-stream	PDF /JS object 7 at offset 0x1EE	25058 bytes

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