Malicious PDF — malware analysis report

Static analysis result for SHA-256 e29e84d7396367e5…

MALICIOUS

PDF

16.2 KB Created: 2010-03-05 15:19:50 Authoring application: Laxiwoveja
MD5: 31071db98fb55371b537715d156ded47 SHA-1: a643a69151f5268e337fe9259164a0ae1af5d705 SHA-256: e29e84d7396367e55c34ee2d4c9a2daa15b59428c8cc29c6597b506df7a71eaa
76 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1204.002 Malicious File

The sample is a PDF file detected by ClamAV as Pdf.Exploit.Agent-36066. Static analysis revealed embedded JavaScript, indicating an attempt to exploit a PDF vulnerability. The JavaScript action and embedded JS stream heuristics confirm the presence of executable code within the PDF. The exact functionality of the JavaScript is not fully discernible due to its size and potential obfuscation, but it is highly likely to be malicious, possibly downloading a second-stage payload.

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