PDF malware analysis — malicious · 4aba0d19c002a385

MALICIOUS

PDF

3.5 KB

MD5: ac47dd8a5e2f6929dce44aa20f4966c1 SHA-1: 954b14ccdb8e93c14f58e2ff5185afe107e6421a SHA-256: 4aba0d19c002a3856306334b1ff42e37cc086c5d1021658fe7022c45656fa431

178 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript, which is obfuscated and uses the unescape() function. A critical heuristic identified the CVE-2009-4324 vulnerability related to media.newPlayer, indicating the JavaScript is likely intended to exploit this flaw. The embedded JavaScript is designed to download and execute a second-stage payload, although the exact URL is obfuscated within the script.

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. (matched in decompressed stream)
ClamAV: Heuristics.PDF.ObfuscatedNameObject critical CLAMAV_DETECTION

ClamAV detected this file as malware: Heuristics.PDF.ObfuscatedNameObject
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 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0006_000.js` `1f831cc7eca512d293a8e947fde9d5756c804fe8b69a8ace5213d98cc0668834`	pdf-javascript-stream	PDF /JS object 6 at offset 0x1AF	2521 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s).

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