Malicious PDF — malware analysis report

Static analysis result for SHA-256 bb5ee4ed752207f3…

MALICIOUS

PDF

6.6 KB Authoring application: Tisilarehaue (via 08443Tibedegabala)
MD5: 94bf82a4be43a26560d05d8f1e2fd747 SHA-1: cc63840e525794b378b922c419a18ca75a8978d3 SHA-256: bb5ee4ed752207f35a0d54cee5b70a2901f1f4e3fe043430c0d7a1fb7fafe029
76 Risk Score

Malware Insights

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

The critical ClamAV heuristic indicates the file is recognized as a PDF exploit. The presence of embedded JavaScript, detected by PDF_JAVASCRIPT and PDF_JS heuristics, strongly suggests that the exploit targets a vulnerability to execute arbitrary code. The JavaScript stream is likely responsible for the malicious payload delivery, although its specific actions are not detailed in the provided evidence.

Heuristics 3

  • ClamAV: Pdf.Exploit.Agent-36142 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-36142
  • 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
d4dce4f95f7146e3b127d68edf45ceb045483a205d9e9a2a53d6e6b80d83b663
pdf-javascript-stream PDF /JS object 10 at offset 0x1230 1728 bytes