PDF malware analysis — malicious · bda6c430dec550ed

MALICIOUS

PDF

37.4 KB Created: 2010-04-11 03:17:50 +04:00 Authoring application: TCPDF (via TCPDF 4.8.032 (http://www.tcpdf.org))

MD5: 1eef76f71c4ce7801ff9dbd0481bc6ae SHA-1: e9b831848c214d2d5ed17862f5af174191c7ff6e SHA-256: bda6c430dec550ede3c473867abd637be7c4973fb9f4fa2f9a9c7447cdfcb7a7

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 'Pdf.Exploit.Agent-22085' strongly suggests this is a known exploit. The embedded JavaScript is likely responsible for downloading and executing a secondary payload, which is a common technique for PDF-based malware delivery. The document body text is nonsensical and does not provide any contextual clues.

Heuristics 4

ClamAV: Pdf.Exploit.Agent-22085 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-22085
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` `371bf5a9a8ca333f77ef996fb6b06cc1995c644cbb02a8e375e9ca65eb9fa720`	pdf-javascript-stream	PDF /JS object 10 at offset 0x8B1A	1344 bytes

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