PDF malware analysis — malicious · 21051a775875cc0a

MALICIOUS

PDF

2.7 KB Created: 2276-01-01 Authoring application: 3933

MD5: 08478e1f39bc50d1fe91029d4e95ec92 SHA-1: 1069f4311d6e681b66febd09aea1fa90367cd2ff SHA-256: 21051a775875cc0a8abc0a6e5a15a594430f52ccc27a22b4c5e60eae4f9d1b83

96 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. The ClamAV detection 'Pdf.Exploit.Agent-36014' strongly suggests this is a known exploit. The embedded JavaScript file 'javascript_obj0013_001.js' was flagged for obfuscation, implying it's designed to hide malicious actions. The likely intent is to leverage a PDF vulnerability to execute this script, which could download and run a second-stage 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` `7347309cc3e4ef1228c18d601412dddbb02d63109047f52a5b887751e04786bb`	pdf-javascript-stream	PDF /JS object 13 at offset 0x328	4790 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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