PDF malware analysis — malicious · d7cd8c72bc1e2d8c

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: 47b6c117d29fba1faf97a89f3c43ff72 SHA-1: fdb450b14d75a5894bc5537c6293b92771158af4 SHA-256: d7cd8c72bc1e2d8c599fcc212940a3cf8607fc93b69ee4ffd4b74c516ce672b7

158 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 JavaScript/JScript T1559.001 Component Object Model T1204.002 Malicious File

The PDF file contains embedded JavaScript that is triggered by the OpenAction feature. The script utilizes the unescape() function and exploits CVE-2009-4324 via the media.newPlayer method, indicating an attempt to execute arbitrary code. The presence of obfuscated JavaScript further supports this malicious intent.

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` `4c1fdf977912685770c2300457fed4bca2dbbfaee06890c882ffa12896dd09ac`	pdf-javascript-stream	PDF /JS object 1 at offset 0x16	35 bytes
`javascript_obj0013_001.js` `5f4570d98b38d20bd6bde14defbc65fc81e81036911fed5297227d9477a49002`	pdf-javascript-stream	PDF /JS object 13 at offset 0x3A7	2655 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s).

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