PDF malware analysis — malicious · 47f9c8ca08fa14f2

MALICIOUS

PDF

37.3 KB Created: 2010-02-25 02:55:53 +03:00 Authoring application: TCPDF (via TCPDF 4.8.032 (http://www.tcpdf.org))

MD5: 36c9f0ec1c66d4edbb2f901e2d8d0be7 SHA-1: 9b2afa817cd27b7c212f09bfb292626bd36b4956 SHA-256: 47f9c8ca08fa14f2f1ed5d1723247479ce45f3b98dd4f1d744d511f5d4770bf6

84 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript, indicated by multiple heuristic firings including PDF_JAVASCRIPT and PDF_JS. The ClamAV detection of 'Pdf.Exploit.Agent-13943' strongly suggests exploitation of a known PDF vulnerability. The embedded JavaScript is likely responsible for executing the exploit, leading to the malicious verdict.

Heuristics 4

ClamAV: Pdf.Exploit.Agent-13943 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-13943
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.
Optional Content Group with action trigger low PDF_OPTIONAL_CONTENT

Optional Content Group (layer) co-occurs with an action trigger — content can be selectively hidden from viewers or scanners while the action still fires on open

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0010_000.js` `c43dd5fcff6a6e40b2911064c21974187be9326e69a0e4c02c150858232a01f9`	pdf-javascript-stream	PDF /JS object 10 at offset 0x708A	8126 bytes

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