PDF malware analysis — malicious · 4d14d26cac33c35f

MALICIOUS

PDF

2.1 KB

MD5: 28be551fad8446ba9db2fe4b5889d544 SHA-1: 0cd31f2d2a478ce36eca95f8e881d7dc693b6eba SHA-256: 4d14d26cac33c35f6374dc8491b78f0a1bb21034f6a76a3caddcee972e3a176b

118 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File Execution: Malicious File Execution

The PDF file contains embedded JavaScript, which is triggered by the CVE-2009-4324 vulnerability related to media.newPlayer. The JavaScript stream, named 'javascript_obj0005_000.js', is likely responsible for executing malicious code. The unescape() function call further suggests obfuscation of the payload. 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.
unescape() call high PDF_UNESCAPE

unescape() found — often used to decode shellcode in PDF JS exploits
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_obj0005_000.js` `21dc31fcb68656df96586208841ae7c73eb7194d360fb24c871007bee353710e`	pdf-javascript-stream	PDF /JS object 5 at offset 0x117	1619 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 2 eval/decoder/string-building token(s).

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