PDF malware analysis — malicious · 9a0c4acb9e409b42

MALICIOUS

PDF

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

MD5: 756eb9670fa6aa4efc8f5ee597ec01e4 SHA-1: ad6843626996a24a1b9c26aa468cd4c8b57bfe47 SHA-256: 9a0c4acb9e409b423b87846fe0d9911ad781eba27e73d42ce850efcf4aba3610

158 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File: Malicious File T1059.001 Command and Scripting Interpreter: PowerShell

This PDF document contains embedded JavaScript that is triggered by the OpenAction feature, a common technique for exploiting PDF viewers. The script utilizes the unescape() function and references CVE-2009-4324 (media.newPlayer), indicating an attempt to execute arbitrary code. While the exact payload is not discernible from the static analysis, the presence of obfuscated JavaScript and a known exploit vector strongly suggests it's designed to download and execute a secondary malicious file. No specific family could be identified.

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` `c7d71308a984d8ab4fec9c024e3f404d3b802f72525ec908933154e51a996523`	pdf-javascript-stream	PDF /JS object 13 at offset 0x3A3	2651 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s).

Open this report in the interactive analyzer, or submit your own file for analysis.