PDF malware analysis — malicious · 2ff945627942c4b9

MALICIOUS

PDF

7.4 KB Created: 2010-09-16 18:55:19 Authoring application: Tolhipezorojpagiwaqo (via b11edSeueganadazaqeav)

MD5: 833ab623c40dbd83acc8d32628315b62 SHA-1: ca868340e999b84cae880e3775d584001bb8723b SHA-256: 2ff945627942c4b97feaed052df209cfc792e71355185446f1e7a5f32e70226e

76 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1566.001 Spearphishing Attachment

The PDF file was flagged by ClamAV with a critical heuristic for obfuscated JavaScript. The embedded JavaScript stream, although truncated, indicates an attempt to execute malicious code, likely for downloading and running a second-stage payload. The presence of JavaScript actions and embedded JS streams within a PDF strongly suggests a malicious document designed to exploit vulnerabilities or trick the user into executing harmful scripts.

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` `e2d41866c9fb013feb60cefe8b41892c7277decb0774febb940ce493b1221654`	pdf-javascript-stream	PDF /JS object 11 at offset 0x1387	2332 bytes

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