PDF malware analysis — malicious · 8238cdeb11186350

MALICIOUS

PDF

1.4 KB

MD5: a572302eda370fdd941272f8cc072ca7 SHA-1: ec396ed5da7a84d41f7e3f599a2b54c1ee0f3741 SHA-256: 8238cdeb11186350ef8c767e4d69f826f186e1e182f02ea65332e37c7254d598

118 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1059.001 JavaScript/JScript

The PDF file contains embedded JavaScript that is triggered by the CVE-2009-4324 vulnerability, specifically related to the media.newPlayer object. This indicates an attempt to execute arbitrary code upon opening the document. The JavaScript is obfuscated, but the critical exploit is clearly identified. No specific malware family could be confidently identified.

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` `5e3ffb2d1c0dc9a9b6f28e746e61c4cc840b9a889ec32fb977fa1a400b91273a`	pdf-javascript-stream	PDF /JS object 111111 at offset 0x160	1272 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` `2fe24a0c1981a0ce33e12cf062aa65efa19c40965a961d00409cb8f8761b7015`	pdf-javascript-stream	PDF /JS object 111112 at offset 0x48A	262 bytes

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