PDF malware analysis — malicious · a1948c1ee67e5b70

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: 15bbe3a32ee8efbe2b4d830391126734 SHA-1: 8d1b7a0d4ccb5dfb6a8da6456af57bff7c3bc5c8 SHA-256: a1948c1ee67e5b70bfa6793f805a55ed8ef85a91d69c86a93870c033879c021c

158 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File: Malicious File T1055.001 Process Injection: Native API

The PDF file contains embedded JavaScript that is triggered by the OpenAction. The critical CVE-2009-4324 heuristic indicates the use of the media.newPlayer object, a known vector for exploiting this vulnerability. The embedded JavaScript, obfuscated within a stream, is likely responsible for executing the exploit. The file's purpose is to leverage this vulnerability to achieve arbitrary code execution.

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 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0001_000.js` `80e3b269ae3d0c16e50815019acd4bb87abed0f5532c9d8f0c8db0ba8b84eb91`	pdf-javascript-stream	PDF /JS object 1 at offset 0x16	34 bytes
`javascript_obj0013_001.js` `e796e5f4e3c496729d7805231f8a87a4ee633db54088d8b97ade04fc172df5db`	pdf-javascript-stream	PDF /JS object 13 at offset 0x3A6	2618 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s).

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