PDF malware analysis — malicious · 841448213a5af1f4

MALICIOUS

PDF

21.4 KB

MD5: 99ab95287042ae04b3899f3152caaf5b SHA-1: 7b74ccface284fcea29cc456ecd16b2d993eeb2e SHA-256: 841448213a5af1f4ad72177cdcd4891e70ac0b4aee2c3a470c1fb4c4692ea6e1

78 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript, identified as a critical finding related to CVE-2009-4324 (media.newPlayer). The JavaScript is obfuscated and appears to be designed to exploit this vulnerability. The primary intent is to leverage the CVE-2009-4324 vulnerability to execute a secondary payload, likely downloaded from a remote source, although the specific download URL is not directly recoverable from the provided evidence.

Heuristics 4

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. (identified after JavaScript deobfuscation)
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_obj0008_000.js` `ab5b381b674ca7e1d715a80a1fd59b581aeeea1acb4027bf48ea32e63737f160`	pdf-javascript-stream	PDF /JS object 8 at offset 0x1E7	2205 bytes
`legacy_pdfkit_stage_000.js` `c3df0b6d669953258363ab802ac0d32c63d5685d76eb2e0ad1f70f86b924f691`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0xAB8	1256 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 2 eval/decoder/string-building token(s).
`legacy_pdfkit_stage_001.js` `42025b552c7960b53abcd8cd732b01c8d109eccfdfefc352b9826c4d5807d414`	deobfuscated-js	cross-stage annotation API aliases at offset 0x1E7	81 bytes

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