PDF / .TXT malware analysis — malicious · 96447c4fe635450f

MALICIOUS

PDF / .TXT

5.8 KB

MD5: 612d686752f57e78ea442a36a4f3aee7 SHA-1: 29b6626e9f5f3c2e616dd1e585449285d25a2ef8 SHA-256: 96447c4fe635450f3cf87ba416676eea8959804236ff427d347de4297c1f4c72

158 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File

The PDF file contains embedded JavaScript, indicated by multiple heuristic firings including PDF_JAVASCRIPT and PDF_JS. The critical ClamAV detection and the high-severity PDF_U3D_CVE_RELATED heuristic suggest exploitation of a vulnerability related to 3D content parsing in Adobe Reader. The embedded JavaScript is likely responsible for executing the malicious payload, potentially leading to further compromise. Two JavaScript files were extracted.

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 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0001_000.js` `ac7ec0732ce01624a06d9af0722ce0cc4b39f82ff4bcfef7a1ed1531fb670718`	pdf-javascript-stream	PDF /JS object 1 at offset 0xF	3908 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 6 eval/decoder/string-building token(s).
`javascript_obj0002_001.js` `53ef3e86395c29047481d41061937b32759780f8b45be9739a0a576f50df45b1`	pdf-javascript-stream	PDF /JS object 2 at offset 0x10E1	58 bytes

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