PDF malware analysis — malicious · f4a74c6a723019fa

MALICIOUS

PDF

2.6 KB

MD5: 3788add2982b50b94a6267ce303afd04 SHA-1: a969eee3066d7cf036a1fa3f7c524cea4dbfec7a SHA-256: f4a74c6a723019fa798a84d102aa719dde7bfae7f1070984af920d6ea60587ed

118 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 JavaScript/JScript T1204.002 Malicious File

The PDF file contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. A critical CVE_2009_4324 heuristic firing suggests exploitation of the media.newPlayer vulnerability. The embedded JavaScript includes an eval() call, which is often used to deobfuscate and execute malicious code. The extracted file 'javascript_obj0005_000.js' likely contains the payload, and the overall behavior points to a malicious PDF designed to exploit a known vulnerability for code execution.

Heuristics 5

media.newPlayer — CVE-2009-4324 critical CVE exact CVE_2009_4324

PDF JavaScript calls media.newPlayer — CVE-2009-4324 is a use-after-free in Adobe Reader's multimedia plugin triggered by media.newPlayer(). Actively exploited as a zero-day in December 2009.
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_obj0005_000.js` `14cc536fe83736504a2040c8fa2812f467abbae0f989bc04d004fa506560c04d`	pdf-javascript-stream	PDF /JS object 5 at offset 0x117	2151 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 4 eval/decoder/string-building token(s). Carved artifact contains 1 long base64-like blob(s).
`javascript_obj0005_001.js` `69179d66eb9410506ffeb4ec912fb1b8f1e476953722bbb9729ce6347e15b891`	pdf-javascript-stream	PDF /JS object 5 at offset 0x117	148 bytes

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