PDF malware analysis — malicious · aeaa7cd97208978b

MALICIOUS

PDF

1.4 KB

MD5: 5a3f2cb108cb70f41e03e22382dfdadc SHA-1: 0d686bee9e1c8bf8b5b3800308f334015bf538f0 SHA-256: aeaa7cd97208978ba0bb47c475f46e89e0db54741666532b1f47409c12f9f754

196 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript, indicated by multiple heuristic firings including PDF_JAVASCRIPT and PDF_JS. A critical CVE-2009-4324 vulnerability related to media.newPlayer was detected, suggesting exploitation. The ClamAV detection of 'Pdf.Dropper.Agent-5343101-0' further confirms its malicious nature. The embedded JavaScript, likely obfuscated, is designed to download and execute a secondary payload, a common dropper behavior.

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-5343101-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Dropper.Agent-5343101-0
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` `b550bdcb0073c6f889e0ca276948c1666202a6e792c9b966fdeb3dbe84cc7212`	pdf-javascript-stream	PDF /JS object 111111 at offset 0x160	1272 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` `8f52fa328539066a2574e446fa8130a6344abaa0a7fcca965013e623c61e41ae`	pdf-javascript-stream	PDF /JS object 111112 at offset 0x489	270 bytes

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