PDF malware analysis — malicious · 440b3ac9b97bfb75

MALICIOUS

PDF

2.7 KB Created: 4718-01-01 Authoring application: 3786

MD5: 07ab32bf859ff8d8cf84fdc22e997ccc SHA-1: c9b633dd46140de3bc455c068fdd362c80593562 SHA-256: 440b3ac9b97bfb75a55289486faf0a2f20c255c1f209ea86fcec395df0854fe9

96 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'. The ClamAV detection 'Pdf.Exploit.Agent-36014' strongly suggests exploitation. The extracted JavaScript file, 'javascript_obj0013_001.js', shows signs of obfuscation, typical for exploit delivery. The embedded JavaScript likely attempts to exploit a vulnerability within the PDF reader to download and execute a secondary payload.

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` `6594af17b1a8ce98320874778a6eaa7744e4912b45e53782d22f15041e11103f`	pdf-javascript-stream	PDF /JS object 13 at offset 0x328	4793 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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