PDF malware analysis — malicious · f8f601e25f520816

MALICIOUS

PDF

1.4 KB

MD5: 5868d5f3095cb85b82ff41ed3cf427b2 SHA-1: 25fb06832568960a2c7d97eb5f8b27ab42e4ae4c SHA-256: f8f601e25f5208160431bb3ff092a63680aa437f65d0715beae5db816decd308

118 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File Execution: Malicious File

The PDF file contains embedded JavaScript, which is triggered by the CVE-2009-4324 vulnerability related to media player functionality. The JavaScript is obfuscated, but the presence of the exploit and embedded script indicates an attempt to execute malicious code. The primary attack vector appears to be exploiting a known PDF vulnerability to achieve arbitrary 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. (matched in decompressed stream)
unescape() call high PDF_UNESCAPE

unescape() found — often used to decode shellcode in PDF JS exploits (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 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj111111_000.js` `5914e7219f9db6dc78e87ccb9e1f0907f43c024135089232196c028d572fc2a9`	pdf-javascript-stream	PDF /JS object 111111 at offset 0x160	1260 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s). Carved artifact contains 1 long base64-like blob(s).
`javascript_obj111112_001.js` `ca3b3f8716a4ad53624e2e440ae2b60bc6332d7e7971da5c0c4bd7012bdf40b1`	pdf-javascript-stream	PDF /JS object 111112 at offset 0x485	266 bytes

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