PDF malware analysis — malicious · 48e1b77756fbeb8b

MALICIOUS

PDF

2.7 KB Created: 4443-01-01 Authoring application: 215

MD5: b4fa32b53d69f5017ef9834ebf71a338 SHA-1: 32170f98ce3b9bbb7ee6fb22a464738a74609c0e SHA-256: 48e1b77756fbeb8bc65c47f7589eca28c1847fabd9fd8835e3616f17668259ce

126 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. The ML classifier and ClamAV detection strongly suggest malicious intent, specifically identifying it as Pdf.Exploit.Agent-36014. The embedded JavaScript file, javascript_obj0013_001.js, likely contains obfuscated code designed to exploit vulnerabilities and download a second-stage payload, as suggested by the EXTRACTED_FILE_STATIC_TRIAGE heuristic.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

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` `56784ea5d04de41a2e8cfc39039c6504cccf270625c292fffb42f74a1bb800fd`	pdf-javascript-stream	PDF /JS object 13 at offset 0x328	4766 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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