PDF malware analysis — malicious · 405b49dd6bb23b45

MALICIOUS

PDF

7.3 KB Authoring application: Tooqimeqipigafara (via 5c2d2Renizaxizo)

MD5: 7079bd5336f0be2249a13ec7766d2ce8 SHA-1: 7b2999dec99b6bce43e6b38acc0b3e139f488f2f SHA-256: 405b49dd6bb23b4547124174e8abe0953962baee41af9b79fd8b29fec687481b

76 Risk Score

Malware Insights

MITRE ATT&CK

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

The PDF file contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. The ClamAV detection 'Heuristics.PDF.ObfuscatedNameObject' further suggests malicious obfuscation. The embedded JavaScript stream is likely responsible for executing malicious code, potentially downloading a second-stage payload. The obfuscated nature of the JavaScript and the PDF structure points towards an attempt to evade detection.

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_obj0010_000.js` `b53e27bbdeba8c818850cc3826b3d643c06114ca0ccd161a827d53f8e26598c4`	pdf-javascript-stream	PDF /JS object 10 at offset 0x130D	2214 bytes

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