PDF malware analysis — malicious · 2cb050e9c160b716

MALICIOUS

PDF

9.7 KB Created: 2009-02-19 14:45:49 -02:00 Authoring application: Writer (via OpenOffice.org 3.0)

MD5: fa54df57e8f392ee62bd7ad446723b0d SHA-1: 1ffeb1c822c342d05be8890af0608152532f9e21 SHA-256: 2cb050e9c160b71608406ca89cc5dbd98a3c110c9209f7d34a7316fdbc8339e2

128 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

This PDF file was flagged as malicious by an ML classifier with high confidence. It contains embedded JavaScript, including a call to eval(), which is often used to deobfuscate and execute malicious code. The presence of JavaScript actions and embedded JS streams indicates an attempt to run arbitrary code. The file also contains a launch action, suggesting it may attempt to execute an external file or application.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 5

Launch action high PDF_LAUNCH

PDF contains a /Launch action with an unresolved or extension-less target — treat as potentially dangerous
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_obj0027_000.js` `c56ddbb6d474ddf0f557bd566833473be391d39e19f8ede8781f3b25bf919aa8`	pdf-javascript-stream	PDF /JS object 27 at offset 0x1C1B	3343 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s).

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