PDF malware analysis — malicious · cd72066b59103d56

MALICIOUS

PDF

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

MD5: 0e6f01acff9e5780ad92d13f6135741e SHA-1: dae45727b688f76b6820985a08e77f5321c7c9cc SHA-256: cd72066b59103d569944e5e605485e114784fcb10c732a8986f08ca12c5c8344

88 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript, indicated by multiple heuristic firings including PDF_JAVASCRIPT, PDF_JS, and PDF_EVAL. The ML classifier strongly flags this PDF as malicious. The embedded JavaScript, named 'javascript_obj0001_000.js', is likely responsible for executing malicious code, potentially downloading and executing a second-stage payload. The confidence is high due to the strong ML signal and multiple JavaScript-related heuristic hits.

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` `de2b3975ef79e2406773898b2139f36210eacd86dcf2b948ff2b1643756d6857`	pdf-javascript-stream	PDF /JS object 1 at offset 0x6521	937 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s).

Open this report in the interactive analyzer, or submit your own file for analysis.