PDF malware analysis — malicious · 4139ef9879a1796a

MALICIOUS

PDF

2.7 KB Created: 3528-01-01 Authoring application: 5546

MD5: 792d1a07dd1906f7295be90a60481506 SHA-1: 0989665638c684d0fe6b5a6d7c1209ad511b58b2 SHA-256: 4139ef9879a1796af4b9ca271db2248eb40b17405744c0fbe9fb66b000c4c61c

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 extracted JavaScript file, 'javascript_obj0013_001.js', shows signs of obfuscation and hex escape sequences, typical of malware attempting to download and execute further stages. The overall attack pattern is consistent with a malicious PDF dropper.

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` `80c8862d934d5e757e2d7df001dbb152f82ef50f2b1e219f8666ac7213342744`	pdf-javascript-stream	PDF /JS object 13 at offset 0x328	5118 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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