PDF malware analysis — malicious · 3ed2fd9800ce64d6

MALICIOUS

PDF

43.2 KB

MD5: a2fd682edd86054e44f4da9e7bd22ca1 SHA-1: ef4c4310ef2cbb9f5644bfeb599ac25e6b5990a5 SHA-256: 3ed2fd9800ce64d6f22dd8ab3ea62bc28374fa79af942557dee08abd96ece103

78 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1059.001 JavaScript

The PDF file contains embedded JavaScript and triggers a critical heuristic for CVE-2009-4324, related to the media.newPlayer API. The JavaScript is obfuscated but appears to be designed to exploit this vulnerability. The primary intent is likely to download and execute a second-stage payload from a remote source, leveraging the CVE-2009-4324 exploit.

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` `653aa2b61c4aa2be81384a4579f160f4b896dacd1c228d12ab038254a4100eda`	pdf-javascript-stream	PDF /JS object 8 at offset 0x1E7	2205 bytes
`legacy_pdfkit_stage_000.js` `e25eb9dea927fc4a67324232040e7bccd1874be12a367fce24d0ca6ae7a3286e`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0xAB8	2744 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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