PDF malware analysis — malicious · 346cd32141981321

MALICIOUS

PDF

2.7 KB Created: 9536-01-01 Authoring application: 1445

MD5: 99e7f9c14d482455e71661f9ab10f76f SHA-1: 1d250223bac4f595efe07a0159910dc4f0333ab1 SHA-256: 346cd3214198132197ffd1001bbd3fdc0b548cffa3b165191330daea00fcdd2f

96 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell

The PDF file contains embedded JavaScript, indicated by multiple heuristic firings including 'PDF_JAVASCRIPT' and 'PDF_JS'. ClamAV also detected this file as 'Pdf.Exploit.Agent-36014'. The embedded JavaScript stream, named 'javascript_obj0013_001.js', shows signs of obfuscation and hex escape sequences, suggesting it is designed to perform malicious actions such as downloading and executing a second-stage payload. The exact intent of the script is not fully discernible due to obfuscation, but its presence within a PDF and the ClamAV signature strongly indicate an exploit attempt.

Heuristics 4

ClamAV: Pdf.Exploit.Agent-36014 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-36014
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 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0013_001.js` `e61a84885be0d8cd9daf3bba63e907b6c6d5911f7e3615bfecddac923805e774`	pdf-javascript-stream	PDF /JS object 13 at offset 0x328	4803 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 10 eval/decoder/string-building token(s). Carved artifact contains 3 long hex-escaped blob(s).

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