PDF malware analysis — malicious · 8a0e2da8346e0fcf

MALICIOUS

PDF

1.4 KB

MD5: 945e93367cdb48028dd6ec6b1378d61c SHA-1: 1a9604b4acd56e36dccb8a89cccf9d6839c16a90 SHA-256: 8a0e2da8346e0fcf96ec14d637ff9c8c5c96d17abc4327a4f43ad78017d06551

118 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File T1566.002 Spearphishing Attachment

This PDF file contains embedded JavaScript, indicated by multiple heuristic firings including PDF_JAVASCRIPT and PDF_JS. The critical CVE_2009_4324 heuristic specifically points to the use of media.newPlayer, a known vector for exploiting this vulnerability. The embedded JavaScript, particularly in javascript_obj111712_001.js, is likely responsible for downloading and executing a secondary payload. The presence of obfuscation indicators further supports this. The attack pattern is consistent with a malicious document designed to exploit a known vulnerability to achieve arbitrary 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 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj111711_000.js` `ed214d008ca7f8fad0affc792159f2b30ce479dc90c5348e0751937c74ebe0c2`	pdf-javascript-stream	PDF /JS object 111711 at offset 0x197	291 bytes
`javascript_obj111712_001.js` `8ab0a7e661a00df31776a8a57b6e55a9f747b88fd5250cdbd9ff1910f84376cf`	pdf-javascript-stream	PDF /JS object 111712 at offset 0x2B2	966 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 2 eval/decoder/string-building token(s).
`javascript_obj111713_002.js` `d2f98bec78aa096efa5aca99b701d5e6b9a8e2cf728fb7e79bf248862bacf14b`	pdf-javascript-stream	PDF /JS object 111713 at offset 0x50A	70 bytes

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