PDF malware analysis — malicious · 313928544a789d9c

MALICIOUS

PDF

3.4 KB

MD5: 12aa6dd801a56319e75a9fba52e748e2 SHA-1: 3a22f1f6b75219f1d9c25a1bd582b69ade0f7c0f SHA-256: 313928544a789d9c6f7941dbc1dd1691fc1cb0fe38a1127a6b7f2603819107c5

178 Risk Score

Malware Insights

MITRE ATT&CK

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

The PDF file contains embedded JavaScript that utilizes the unescape function and targets the media.newPlayer object, indicating exploitation of CVE-2009-4324. This exploit is designed to download and execute a second-stage payload. The ClamAV detection of Pdf.Exploit.Agent-14058 further confirms its malicious nature.

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: Pdf.Exploit.Agent-14058 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-14058
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` `9e39fc7e521e5ff67f8115661859a8907e808af857ef3452d3de681abb62c51c`	pdf-javascript-stream	PDF /JS object 6 at offset 0x1A5	2374 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s).

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