PDF malware analysis — malicious · adf5317bd447472e

MALICIOUS

PDF

4.0 KB Created: 2008-31-20 53:85:00 Authoring application: Scribus 1.3.3.12 (via Scribus PDF Library 1.3.3.12)

MD5: f629b0e893296aacb6979bf5fdfba5cc SHA-1: ccd9bd01725eb87b48d14c89d10258bcd7fdce8e SHA-256: adf5317bd447472e9e037f9625f6a51488a91a6294406985999aad70796c1f22

158 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 JavaScript T1204.002 Malicious JavaScript

The PDF file contains embedded JavaScript triggered by an OpenAction, indicating an attempt to automatically execute code upon opening. The critical CVE-2009-4324 heuristic firing related to media.newPlayer strongly suggests exploitation of this vulnerability. The embedded JavaScript stream, though obfuscated, likely facilitates the exploit. The primary intent appears to be the execution of arbitrary code, potentially leading to the download of further malicious content.

Heuristics 6

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.
OpenAction trigger high PDF_OPENACTION

PDF has an /OpenAction — code runs automatically when opened
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_obj0013_001.js` `dcc58f194798354b8cb3c0ff5ff8eabdf032b8622c26a3cdaad056668f7cc632`	pdf-javascript-stream	PDF /JS object 13 at offset 0x398	2592 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s).

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