PDF malware analysis — malicious · 1019fd8b10c33f43

MALICIOUS

PDF

16.2 KB Created: 2010-03-05 15:19:50 Authoring application: Laxiwoveja

MD5: 04b2d535af78ecefeef5bd331421f6f2 SHA-1: 5c206ad845246fdffac58d2de46de3b0f4a71828 SHA-256: 1019fd8b10c33f43230fada64fb2652e21d6d5969551269c6de8fbb20a4b2e8a

106 Risk Score

Malware Insights

MITRE ATT&CK

T1059.007 JavaScript T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

The critical ClamAV detection and high ML classifier score indicate malicious intent. The presence of embedded JavaScript, identified by heuristics and confirmed in the SCRIPTS section, strongly suggests an exploit targeting PDF vulnerabilities. This JavaScript is likely responsible for downloading and executing a secondary stage, a common technique for malware delivery.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 3

ClamAV: Pdf.Exploit.Agent-36066 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-36066
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_obj0022_000.js` `22e7b9b95199cc294a88baec03e968aa698abb89fdbf202e98b946c7b2639771`	pdf-javascript-stream	PDF /JS object 22 at offset 0x30AF	971255 bytes

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