Malicious PDF — malware analysis report

Static analysis result for SHA-256 1fb37fa40fd17fa6…

MALICIOUS

PDF

7.3 KB Authoring application: Tooqimeqipigafara (via ea686Renizaxizo)
MD5: 8e3c3c0bbb2832d33a0f1080cb40126e SHA-1: 7f3ecd15ec86d7ced8afe6f28125ba5dd2e91959 SHA-256: 1fb37fa40fd17fa6a1f82b65662da10c9fcf307767c79a651e38bdb08bd61a50
76 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1566.001 Spearphishing Attachment

The PDF file contains embedded JavaScript, indicated by multiple heuristic firings including 'PDF_JAVASCRIPT' and 'PDF_JS'. The ClamAV detection 'Heuristics.PDF.ObfuscatedNameObject' further suggests malicious intent. The embedded JavaScript is likely responsible for executing a malicious payload or initiating a phishing attempt.

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.

FilenameKindSourceSize
javascript_obj0010_000.js
b53e27bbdeba8c818850cc3826b3d643c06114ca0ccd161a827d53f8e26598c4		 pdf-javascript-stream PDF /JS object 10 at offset 0x130D 2214 bytes

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