PDF malware analysis — malicious · a51ffafdc95f0d48

MALICIOUS

PDF

37.7 KB Created: 2010-04-15 07:36:53 +04:00 Authoring application: TCPDF (via TCPDF 4.8.032 (http://www.tcpdf.org))

MD5: 362777d6ba71061b020c1f0df8227c15 SHA-1: 80087e60bbbd0db6b389a9e374946068ff552a8f SHA-256: a51ffafdc95f0d482ebdf8fa39524ab82216d2a311eb53ffa3407eadf292f65b

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 related to PDF JavaScript actions and streams. ClamAV detection as 'Pdf.Exploit.Agent-22225' strongly suggests exploitation of a vulnerability. The embedded JavaScript is likely responsible for executing a malicious payload, although its specific actions are not detailed in the provided evidence. The file's structure and the presence of JavaScript point towards a common PDF-based exploit delivery mechanism.

Heuristics 4

ClamAV: Pdf.Exploit.Agent-22225 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-22225
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` `860bc078769c5ae6e2055d7d14805e20c4d20171ddca259cb52b22c6e24dc3f9`	pdf-javascript-stream	PDF /JS object 10 at offset 0x8C74	1344 bytes

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