PDF malware analysis — malicious · bbf0a5d036096c8f

MALICIOUS

PDF

2.7 KB Created: 777 Authoring application: 9190

MD5: cd175a10f676e45f5f65dcf448d93466 SHA-1: 110d8fcc4366ba5d086ce12970ed07bb56b3a5e5 SHA-256: bbf0a5d036096c8f0c8f1b5dd40334ff60f47678cc9cd85686f789ff935f2a8d

126 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file was flagged by multiple heuristics, including ML classification and ClamAV detection (Pdf.Exploit.Agent-36014), indicating malicious intent. An embedded JavaScript stream was identified, and static triage noted obfuscation techniques within the extracted JavaScript artifact. This suggests the script is designed to exploit a vulnerability within the PDF reader to execute arbitrary code, likely downloading and running a second-stage payload.

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` `b43cead2e3321813162ae9c89147c1b14da0083ab7553000d472f2157926ba2a`	pdf-javascript-stream	PDF /JS object 13 at offset 0x328	4791 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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