PDF malware analysis — malicious · 4a87b09b40ed02ab

MALICIOUS

PDF

2.4 KB

MD5: 34af401f5d50730dd7402695cd30a79d SHA-1: 9864ead58649059153cfcda4a3e9f2020c8240c1 SHA-256: 4a87b09b40ed02aba7bd93b1382f03e44baac9c6ac1dba3a7473c8a9fb6cc3a0

118 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File: Malicious File

The PDF file contains embedded JavaScript that utilizes the 'eval()' function, indicating an attempt to execute arbitrary code. The critical 'CVE_2009_4324' heuristic firing specifically points to the use of 'media.newPlayer', a known exploit vector for this vulnerability. The JavaScript is likely designed to download and execute a second-stage payload, though the exact mechanism is obfuscated.

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.
eval() call high PDF_EVAL

eval() found — commonly used for obfuscated exploit execution
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_obj0005_000.js` `97128c9a7cc15bb14d121abd7530fb0a6c451b4e2c37813a208508f0fb3a0a67`	pdf-javascript-stream	PDF /JS object 5 at offset 0x117	1886 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 4 eval/decoder/string-building token(s).
`javascript_obj0005_001.js` `a4a39a95112adeb7becbe348ae769bf8a4316eb18c0ca19b042a5144275ca0a0`	pdf-javascript-stream	PDF /JS object 5 at offset 0x117	42 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s).

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