PDF malware analysis — malicious · df08640946d52278

MALICIOUS

PDF

1.4 KB

MD5: 61d6112af84df716528e6c04385e688c SHA-1: 3f94c73cba66ca7608198cd2f799ebf25b394db4 SHA-256: df08640946d522782d9232eac9eda83ccccbfca3a6c66f5041d7dc9f2104b858

196 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1059.007 JavaScript

The PDF file contains embedded JavaScript, indicated by multiple heuristic firings including PDF_JAVASCRIPT and PDF_JS. A critical heuristic identified the CVE-2009-4324 vulnerability related to media.newPlayer, and ClamAV detected it as Pdf.Dropper.Agent-7313954-0. The presence of JavaScript and the specific CVE exploit suggest the file's purpose is to leverage this vulnerability to execute malicious code, likely a downloader for further stages.

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.Dropper.Agent-7313954-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Dropper.Agent-7313954-0
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 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj111111_000.js` `9ef85d2d93db7ff3ded60a11841a53dd96797a453dca56f6e5ea6c8716f050c4`	pdf-javascript-stream	PDF /JS object 111111 at offset 0x160	1258 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s). Carved artifact contains 1 long base64-like blob(s).
`javascript_obj111112_001.js` `86bd41b155363a979741bb39391c92208033304266b434f1a164a298b0811ca0`	pdf-javascript-stream	PDF /JS object 111112 at offset 0x487	251 bytes

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