PDF malware analysis — malicious · 3ba6e40a965e43cb

MALICIOUS

PDF

4.8 KB

MD5: 8800bba4d60538c651ad47cc8dcbb31a SHA-1: 1afc8f9904f2123ab56b9208f47d1e4a97a7eaee SHA-256: 3ba6e40a965e43cb23ec965d0f37a597b9a2de9ce7aaf501b01ac713b2b2ea71

158 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 JavaScript T1204.002 Malicious JavaScript

The PDF file contains embedded JavaScript, indicated by multiple heuristic firings including PDF_JAVASCRIPT and PDF_JS. The critical ClamAV detection and the PDF_U3D_CVE_RELATED heuristic suggest exploitation of a vulnerability related to 3D content parsing in Adobe Reader. The embedded JavaScript, named 'javascript_obj0001_000.js', is likely responsible for executing the malicious payload. The unescape() call further points to obfuscation techniques used to hide the script's true nature.

Heuristics 6

U3D/3D content in PDF — Adobe Reader 3D parser CVE-family indicator high CVE related PDF_U3D_CVE_RELATED

PDF contains U3D (Universal 3D) or 3D annotation content — CVE-2011-2462 and CVE-2009-3953 are critical vulnerabilities in Adobe Reader's U3D processing that allow arbitrary code execution. U3D content in PDFs is extremely rare in normal documents.
ClamAV: Heuristics.PDF.ObfuscatedNameObject critical CLAMAV_DETECTION

ClamAV detected this file as malware: Heuristics.PDF.ObfuscatedNameObject
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 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0001_000.js` `7ef1764030d8ce592b93363d951a9be1ef356899ecfb2c5e51ff6cf92136cda3`	pdf-javascript-stream	PDF /JS object 1 at offset 0xF	3006 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 5 eval/decoder/string-building token(s).

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