PDF malware analysis — malicious · a24d282ba9686497

MALICIOUS

PDF

1.4 KB

MD5: ab33f87dd4bb7de403f4b27570e6b807 SHA-1: 4ff1690ecae5626d129da4090198c8771151445f SHA-256: a24d282ba96864974cc70e0b0d60ac373c1d8e4a8c6844e9a2738bab3b4b8d20

118 Risk Score

Malware Insights

MITRE ATT&CK

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

This PDF document contains embedded JavaScript, which is triggered by the CVE-2009-4324 vulnerability related to the media.newPlayer object. The JavaScript is obfuscated, but the presence of the exploit and the embedded script indicates an attempt to execute arbitrary code. The primary attack vector appears to be exploiting a specific PDF reader vulnerability to achieve code execution.

Heuristics 5

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)
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` `e4ad1b8bdcba8ec950bba778a581c5252e6ec8b516b5c1d987468b1b179ac75b`	pdf-javascript-stream	PDF /JS object 111111 at offset 0x160	1256 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` `63133f6db6056c45c739d6ed3601e269ca0850acb7dac8b53d3cf6e8125aff7b`	pdf-javascript-stream	PDF /JS object 111112 at offset 0x488	262 bytes

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