PDF malware analysis — malicious · 88249a9a71c97e3b

MALICIOUS

PDF

7.3 KB Authoring application: Tooqimeqipigafara (via ba37cRenizaxizo)

MD5: 495de74de5ac14630ded406dfbfcfa7a SHA-1: 031a969165dc6d48c4b35642773e10d1faef4745 SHA-256: 88249a9a71c97e3beeb9181bb24c64024c8247ae06390aa4320dd15fb941a76c

76 Risk Score

Malware Insights

MITRE ATT&CK

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

The file is a PDF containing obfuscated JavaScript, as indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. The ClamAV detection of 'Heuristics.PDF.ObfuscatedNameObject' further supports its malicious nature. The embedded JavaScript is likely designed to exploit a vulnerability within the PDF reader to download and execute a secondary payload, a common technique for initial access.

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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