PDF malware analysis — malicious · 3c219e9d9b3f4552

MALICIOUS

PDF

1.4 KB

MD5: b8a584cef29bde2af7a0b4ac84ca0bc3 SHA-1: 9c59de48031b793809d40bee8586d07e09e03e72 SHA-256: 3c219e9d9b3f4552179a6fd7d5675cc546ee41d4b478be5645079d23a9a1755e

118 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 JavaScript/JScript T1204.002 Malicious File

The PDF file contains embedded JavaScript, which is triggered by the CVE-2009-4324 vulnerability via the media.newPlayer object. This indicates the document is designed to exploit a known flaw in PDF readers to execute malicious code. The JavaScript is obfuscated, but the presence of the exploit and embedded script strongly suggests a malicious intent to compromise the user's system.

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` `2580b84043a4a9f6ea2c1f4fe583907471c5a2f474bb46a134f57b67c50574ab`	pdf-javascript-stream	PDF /JS object 111111 at offset 0x160	1259 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` `a20f661a3eb50fc2f0f472bedd1b32ff1aea0ff8be8b29df49b02a05fb71df29`	pdf-javascript-stream	PDF /JS object 111112 at offset 0x486	257 bytes

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