PDF malware analysis — malicious · 3e13c8b861c657a6

MALICIOUS

PDF

1.4 KB

MD5: d6703d02680a8fe835157cd0881134ce SHA-1: f6feb68bbf29036f2e45b15eeefdfe244e768e95 SHA-256: 3e13c8b861c657a6113937d9d9e73ce6d02b71c09e0c36899703037fca0a533f

118 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1059.001 JavaScript

This PDF file contains embedded JavaScript, which is triggered by the CVE-2009-4324 vulnerability related to the media.newPlayer object. The JavaScript is obfuscated, but the presence of unescape() calls and the specific exploit heuristic indicate it's designed to execute malicious code. The primary attack vector is likely user interaction with the PDF, leading to the exploitation of the reader.

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` `d6c0448238f6a245e696dae8d24863f4f8ab369a94163be51ba5ddd2e3d84ff7`	pdf-javascript-stream	PDF /JS object 111111 at offset 0x160	1276 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` `531b4e417c8eef0350468ff90dfd3912e48a47de2a3271b2d86c07f2e94d9784`	pdf-javascript-stream	PDF /JS object 111112 at offset 0x48F	266 bytes

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