PDF malware analysis — malicious · 93aaba6ef961f0ab

MALICIOUS

PDF

1.5 KB

MD5: 5aef55e027738aa1415e529de444b7bf SHA-1: 54a50219158fff630a17afa81ed6644004c69237 SHA-256: 93aaba6ef961f0ab6bece5239570035c0cb89cad1cc42603dc18661cf1778496

196 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File T1566.002 Spearphishing Attachment

The PDF file contains embedded JavaScript, which is triggered by the CVE-2009-4324 vulnerability related to media player handling. The JavaScript is obfuscated, but the presence of `unescape()` and the ClamAV detection as `Pdf.Exploit.Agent-23249` strongly indicate malicious intent. The primary attack vector is likely a user opening a malicious PDF attachment, leading to the execution of the exploit.

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-23249 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-23249
unescape() call high PDF_UNESCAPE

unescape() found — often used to decode shellcode in PDF JS exploits (matched inside decoded stream)
Suspicious extracted artifact medium 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.
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.

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` `82e0484fef97619469cdf745a6add12f7b24646a59338be4c23adb9cdeb045ad`	pdf-javascript-stream	PDF /JS object 111712 at offset 0x2B3	1969 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 0x551	70 bytes

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