PDF malware analysis — malicious · f7bcee94299afbc3

MALICIOUS

PDF

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

MD5: 174a817a4471362d5e16d36dcf6d0f81 SHA-1: d90b43a343562f04088b7ae5b4be27429f29739f SHA-256: f7bcee94299afbc39c712c41206249cb1b7abc2e0fbd2009e217a54a31a2f392

84 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. ClamAV detection as 'Pdf.Exploit.Agent-23545' strongly suggests exploitation of a PDF vulnerability. The embedded JavaScript is likely responsible for downloading and executing a secondary payload, which is a common attack vector for PDF-based malware. The file's SHA256 hash is included as an IOC.

Heuristics 4

ClamAV: Pdf.Exploit.Agent-23545 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-23545
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` `77b9bad0646588e598549576249c765f39054033cb8879308f1861cbfb6904b0`	pdf-javascript-stream	PDF /JS object 10 at offset 0x8C8E	1346 bytes

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