PDF malware analysis — malicious · 461eb0a724abf4fe

MALICIOUS

PDF

1.5 KB

MD5: 50b24a82260ac1f4b261b96ca827a26b SHA-1: 4305d14e6cc954ce62994c4bee5c56eadfb8a384 SHA-256: 461eb0a724abf4feacc163d83e5b954c4ba6fa5b53da881f30433c996773604b

178 Risk Score

Malware Insights

MITRE ATT&CK

T1204 Malicious Link T1059.001 PowerShell

The PDF file contains embedded JavaScript that is triggered by the CVE-2009-4324 vulnerability, specifically related to the media.newPlayer object. This exploit is designed to execute arbitrary JavaScript, likely to download and execute a second-stage payload. The ClamAV detection further confirms its malicious nature.

Heuristics 6

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)
ClamAV: Pdf.Exploit.Agent-13195 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-13195
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` `9bd5dd04dac35e8c4585708eb6d172a30ee779e9f8de0156b2a80a1f92f1bae9`	pdf-javascript-stream	PDF /JS object 111712 at offset 0x2B3	1983 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 0x552	70 bytes

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