PDF malware analysis — malicious · 4b33c7a214a4626d

MALICIOUS

PDF

2.7 KB Created: 3441-01-01 Authoring application: 6733

MD5: a35f03688a090d9924c87ef046efa1dc SHA-1: 5d61a79b03d9df1fdb4c8bda93f131014830cc49 SHA-256: 4b33c7a214a4626d62062df083086bfb8434347fcf4a3dad08632be14eb28633

96 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File: User Execution: 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 an exploit. The embedded JavaScript file, 'javascript_obj0013_001.js', likely contains the exploit code. The obfuscation indicators in the extracted artifact further support this. The exact intent of the script cannot be determined without further analysis, but it is highly likely to be an exploit attempting 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` `514e592842dca7ccdbf0cc726051b7fded88b97ee2e87c47b6c575f149b5f4d4`	pdf-javascript-stream	PDF /JS object 13 at offset 0x328	4777 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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