PDF malware analysis — malicious · ac7b902c015e535c

MALICIOUS

PDF

1.4 KB

MD5: 37d839cbef4c07bb848fa8fc37f7622f SHA-1: c100eaa1a9c996f0a4b66c0de6f01d41f645a7dd SHA-256: ac7b902c015e535c4bc7572fabdcc167c5174458c34f4a56dd9f7da095e10a1d

118 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File: Malicious File

The PDF file contains embedded JavaScript that is triggered by the 'media.newPlayer' object, indicating an attempt to exploit CVE-2009-4324. The JavaScript itself appears to be obfuscated, but the presence of the exploit and the embedded script strongly suggest malicious intent. The script's primary function seems to be displaying an alert box, likely as a precursor to further malicious actions.

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` `1434aa0de246d0ee9799bfc482ef21ee30f2d84d0ddde09e154c843ece865e2c`	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` `99d5239b2c9060a193f2112e3f6efa21b74cd411d4905e6c505eb8465ac7d58c`	pdf-javascript-stream	PDF /JS object 111112 at offset 0x48D	257 bytes

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