PDF malware analysis — malicious · bb0d6d12b2a6fbef

MALICIOUS

PDF

6.6 KB Created: 2010-09-03 08:31:16 Authoring application: Kilolexedo (via eeac7 komadecehofa)

MD5: 4126d727ee80db84147163b9e4ddf745 SHA-1: ad501db4674f0a4bd552fd3e1c723a954a2656aa SHA-256: bb0d6d12b2a6fbefbcb81eb11b6ed54926cf2229957c684e73ac371bf3ad3368

76 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The critical ClamAV heuristic 'Heuristics.PDF.ObfuscatedNameObject' and the presence of embedded JavaScript indicate a malicious PDF. The JavaScript action and embedded JS stream suggest the file is designed to exploit vulnerabilities within the PDF reader to execute arbitrary code. The exact intent of the script is unclear due to obfuscation, but it is likely to download and execute a second-stage payload.

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` `655e860105bca707220eb076fab6f8b10e42b9eebe63cb41f76b4d67b7275a34`	pdf-javascript-stream	PDF /JS object 11 at offset 0x1202	1975 bytes

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