PDF malware analysis — malicious · 2b81b8fd073919c8

MALICIOUS

PDF

37.8 KB Created: 2010-04-19 21:56:07 +04:00 Authoring application: TCPDF (via TCPDF 4.8.032 (http://www.tcpdf.org))

MD5: 36a521923ad61e2e01c5e7d3342a9881 SHA-1: a09aea9167ff2d73e63afdc8e7a126b204a58de1 SHA-256: 2b81b8fd073919c832b3e76ff8474074c1502eeeecaa9bb10079aca590cf8b69

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 and the presence of a javascript object. This JavaScript is likely responsible for exploiting a vulnerability within the PDF reader to execute arbitrary code. The ClamAV detection 'Pdf.Exploit.Agent-23548' further supports the malicious nature of this file, suggesting it's a known exploit.

Heuristics 4

ClamAV: Pdf.Exploit.Agent-23548 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-23548
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` `bc6e3f1726bedbbbdbc1b94f525dcb83ec70f057d12691adae3ddc55c63a1992`	pdf-javascript-stream	PDF /JS object 10 at offset 0x8D02	1346 bytes

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