PDF malware analysis — malicious · b523d6b5a5c75aa0

MALICIOUS

PDF

2.7 KB Created: 3496-01-01 Authoring application: 7204

MD5: a5378fb79ce9b4dd30c2455578fe4711 SHA-1: 8782c555d33fb51b65d92226fa1a44c2624c8029 SHA-256: b523d6b5a5c75aa028d6286b950326cba39dec76706e22b5472f722dc5be5199

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 heuristic identifies the file as 'Pdf.Exploit.Agent-36014', suggesting it exploits a known PDF vulnerability. The embedded JavaScript, although obfuscated, is a common method for delivering malicious payloads. The extracted file 'javascript_obj0013_001.js' also shows signs of obfuscation, further supporting the malicious intent.

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` `511e8fb50ef4072b2e73b646154e4d2271fc65adb12d19eb91b2455f0650ca9d`	pdf-javascript-stream	PDF /JS object 13 at offset 0x328	4807 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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