PDF malware analysis — malicious · aefa315e85b35f20

MALICIOUS

PDF

1.4 KB

MD5: 361245bc17b643714fa37a2ea3b15864 SHA-1: d045e052fd1961ef6d1f028815d2feb25bb1240e SHA-256: aefa315e85b35f20866b16846e9d94f7e447e39092a5ef3ad9786e1bd2c930d1

178 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1059.001 PowerShell

This PDF file contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. The critical CVE_2009_4324 heuristic firing suggests exploitation of a specific vulnerability related to media player objects. The embedded JavaScript, particularly the use of unescape() and the presence of obfuscated code, points towards a downloader or dropper functionality. The ClamAV detection further confirms its malicious nature. The primary attack vector appears to be leveraging the CVE-2009-4324 vulnerability to execute arbitrary code via JavaScript.

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.Dropper.Agent-7293210-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Dropper.Agent-7293210-0
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 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj111111_000.js` `5516da05fdf98035943797f194014e3ba47407650ef200968102aacc7b9cae07`	pdf-javascript-stream	PDF /JS object 111111 at offset 0x160	1258 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s). Carved artifact contains 1 long base64-like blob(s).
`javascript_obj111112_001.js` `05bafbb355d72557fd773f7d179db9a0c67a5f656606622d62fa24688783d097`	pdf-javascript-stream	PDF /JS object 111112 at offset 0x485	248 bytes

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