PDF malware analysis — malicious · 38439400e369341e

MALICIOUS

PDF

2.7 KB Created: 6111-01-01 Authoring application: 2897

MD5: 4fc71771d9c20abe6d42785a0c57e4cb SHA-1: 014e870f6fc3de739a37b9f25115c0812a694697 SHA-256: 38439400e369341e88f0dbbdea328c883834c4497699d9c16b5daffa9d4714e1

96 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File: 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' further confirms its malicious nature. The embedded JavaScript, extracted as 'javascript_obj0013_001.js', is likely responsible for exploiting a PDF vulnerability to download and execute a second-stage payload, a common technique for initial access.

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` `99918f4da426a5433da2ac6e949451dc5be2ae5d76c69d39b9eaa057affbd15a`	pdf-javascript-stream	PDF /JS object 13 at offset 0x328	4739 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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