PDF malware analysis — malicious · 9b4f77a4bfbfb511

MALICIOUS

PDF

2.7 KB Created: 1155-01-01 Authoring application: 5290

MD5: 78875c3340069d1e6aca05ed1042e688 SHA-1: 7e3012bc9f30c8b784324a76625c04e3aa3a0be7 SHA-256: 9b4f77a4bfbfb5112621eeb6b974bc85319d20dff9ca8812b2a1b389abb68a86

96 Risk Score

Malware Insights

MITRE ATT&CK

T1059.007 Scripting: JavaScript

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 file 'javascript_obj0013_001.js' is likely responsible for the exploit, potentially downloading and executing a second-stage payload. The file size and metadata are not indicative of malicious activity.

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` `f3a3025344f73ba539ca90ae1f0a8322aab200ed560dae4ae1bdcecb875eb56e`	pdf-javascript-stream	PDF /JS object 13 at offset 0x328	4795 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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