Malicious PDF — malware analysis report

Static analysis result for SHA-256 a74ae06bd2c6958b…

MALICIOUS

PDF

6.7 KB Created: 2010-09-03 08:30:37 Authoring application: Xijokanilohova (via 3fef3Kmgxaloxaxgi)
MD5: 283013d6a7b93c2bc4acb65cfdb16eb4 SHA-1: 7a9c521b8ee0f545f7a0270b3433d274bbe18327 SHA-256: a74ae06bd2c6958b3984926ecc0e75f313b2f02aa0f8676d61b5a0b9b6cfd640
76 Risk Score

Malware Insights

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

The PDF file contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. The CLAMAV_DETECTION heuristic further suggests this JavaScript is obfuscated and malicious. While the document body is unreadable, the presence of JavaScript strongly implies an attempt to exploit a vulnerability or deliver a secondary payload. The file's SHA256 hash is included as an IOC.

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_obj0011_000.js
d75aba2bc241d027161697fa7aada0bf45c7afe5b58fce1bb0bf66350349f123		 pdf-javascript-stream PDF /JS object 11 at offset 0x1208 1983 bytes

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