PDF malware analysis — malicious · 4e11142896abc3da

MALICIOUS

PDF

12.5 KB

MD5: 3a9b5210211e36426e7753d41a51c204 SHA-1: 0ce9ffe146f928ba559626998c3b85fb7495ecf0 SHA-256: 4e11142896abc3dabf09eee4f8b0328cef077599ac70228f3878c57ab6572e6e

76 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File: User Execution: Malicious File

The PDF contains embedded JavaScript, which is a common technique for exploiting vulnerabilities in PDF readers. ClamAV detected this as Pdf.Exploit.Pdfka-9, indicating a known exploit. The embedded JavaScript is likely responsible for executing a malicious payload.

Heuristics 3

ClamAV detection on extracted artifact critical EXTRACTED_FILE_CLAMAV

ClamAV flagged at least one file extracted from inside this sample. Even when the wrapping document carries no AV detection of its own, a hit on the carved artifact is a strong indicator the sample is a delivery vehicle.
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 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0076_000.js` `2b7a39cebf5cb14b28137019f12661d30c81020592a54686614fe618e9eba58b`	pdf-javascript-stream	PDF /JS object 76 at offset 0x369	11650 bytes
Detection ClamAV: Pdf.Exploit.Pdfka-9 Obfuscation or payload: unlikely

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