PDF malware analysis — malicious · c2a0b88ff6e87e13

MALICIOUS

PDF

7.3 KB Created: 2010-09-16 18:52:20 Authoring application: Qabifagevafa (via 80b06Tiqotezozav)

MD5: 45cd7547770b934a141f6e52cbc61a24 SHA-1: 72695aa03d0c44b72c26cdd23558900cbf5006a5 SHA-256: c2a0b88ff6e87e1389eb9d383b0792442d672fb2cefc913a6ab9d805ce1b90bc

76 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1566.001 Spearphishing Attachment T1027 Obfuscated Files or Information

The PDF file was flagged by ClamAV with a critical heuristic indicating obfuscated content. Analysis revealed embedded JavaScript, which is often used to deliver second-stage payloads or exploit vulnerabilities. The presence of obfuscated JavaScript and the ClamAV detection strongly suggest a malicious intent, likely to execute arbitrary code or download further malware.

Heuristics 3

ClamAV: Heuristics.PDF.ObfuscatedNameObject critical CLAMAV_DETECTION

ClamAV detected this file as malware: Heuristics.PDF.ObfuscatedNameObject
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.

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0011_000.js` `ff85b44f7d06834e69a161aee8e28b7340c56fef50ee1649100cb6f376ea5386`	pdf-javascript-stream	PDF /JS object 11 at offset 0x1364	2324 bytes

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