PDF malware analysis — malicious · ab87bccddd64af00

MALICIOUS

PDF

36.5 KB Created: 2010-02-25 03:20:18 +03:00 Authoring application: TCPDF (via TCPDF 4.8.032 (http://www.tcpdf.org))

MD5: 1f6495fd94e021dee98e453425cbc78e SHA-1: 8a1e062daa1920b353974bc277a05cd266efc44e SHA-256: ab87bccddd64af0099b28239d058074d65a953bb857b4dd071f6aaf9e8419d6f

114 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 ML classifier and ClamAV detection strongly suggest malicious intent, specifically targeting PDF vulnerabilities. The embedded JavaScript is likely responsible for executing the exploit, leading to the 'Pdf.Exploit.Agent-13804' detection.

Machine Learning

Nyx PDF Classifier malicious score 0.9999

Heuristics 4

ClamAV: Pdf.Exploit.Agent-13804 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-13804
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` `7d36571bf275375ec8ca66a2a1a1db2f69e04496c2dd26da6efcef06618bfee1`	pdf-javascript-stream	PDF /JS object 10 at offset 0x705D	7344 bytes

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