Malicious PDF — malware analysis report

Static analysis result for SHA-256 79d82c484bcab410…

MALICIOUS

PDF

16.2 KB Created: 2010-03-05 15:19:50 Authoring application: Laxiwoveja
MD5: 23b3321bd393ca18f8fb404d49eb1457 SHA-1: bb394263eade65c7e000cf8dd6ee173a928b0f5f SHA-256: 79d82c484bcab410c551eadf4a08a1bf7e45885484d2449beec31389b7d37ea1
76 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF file contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. The ClamAV detection 'Pdf.Exploit.Agent-36066' strongly suggests this JavaScript is used to exploit a vulnerability within the PDF reader. The large size of the embedded JavaScript object (971255 bytes) further supports the likelihood of a complex exploit or payload delivery mechanism. The document body is unreadable, providing no contextual clues about the lure, but the technical indicators point to an exploit-based attack.

Heuristics 3

  • ClamAV: Pdf.Exploit.Agent-36066 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-36066
  • 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_obj0022_000.js
22e7b9b95199cc294a88baec03e968aa698abb89fdbf202e98b946c7b2639771		 pdf-javascript-stream PDF /JS object 22 at offset 0x30AF 971255 bytes

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