PDF malware analysis — malicious · baacc35b391cac0f

MALICIOUS

PDF

1.5 KB

MD5: f4157c02b34c473455de5fa6578651f5 SHA-1: 1156cef4aee217d98efb3993463b8131fbd0a558 SHA-256: baacc35b391cac0f6359f65f695fb91b42d62e10244eb805954bafd824e3c2b9

118 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File: Malicious File

The PDF file contains embedded JavaScript that is triggered by the CVE-2009-4324 vulnerability, specifically related to the media.newPlayer object. The JavaScript is obfuscated, but the presence of the unescape() function and the critical heuristic firing indicate that it is designed to execute malicious code. The primary attack vector is the exploitation of this known PDF 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` `1f2a73c38eb8f495901d77b5d4474ae05cbbd5243736319bd59862e9e21f60f5`	pdf-javascript-stream	PDF /JS object 111712 at offset 0x2B3	1986 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 2 eval/decoder/string-building token(s). Carved artifact contains 1 long base64-like blob(s).
`javascript_obj111713_002.js` `d2f98bec78aa096efa5aca99b701d5e6b9a8e2cf728fb7e79bf248862bacf14b`	pdf-javascript-stream	PDF /JS object 111713 at offset 0x54C	70 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.