Malicious PDF — malware analysis report

Static analysis result for SHA-256 2067b26f250bf562…

MALICIOUS

PDF

12.3 KB
MD5: 513099aae233a51d7e724f63e4080407 SHA-1: 9b2d4a929106ea22a9905a48ba82f2ca55974a79 SHA-256: 2067b26f250bf562955c6a9233aa20e3fba756c1408e22c42a25755ceabe1410
136 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: Malicious File

The PDF file contains embedded JavaScript, indicated by multiple heuristic firings and the presence of an extracted JS file. ClamAV detections confirm the malicious nature, identifying it as a PDF exploit. The embedded JavaScript is likely responsible for executing a malicious payload, potentially leading to further compromise.

Heuristics 4

  • ClamAV: Pdf.Exploit.Agent-36365 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-36365
  • ClamAV detection on extracted artifact critical EXTRACTED_FILE_CLAMAV
    ClamAV flagged at least one file extracted from inside this sample. Even when the wrapping document carries no AV detection of its own, a hit on the carved artifact is a strong indicator the sample is a delivery vehicle.
  • 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_obj0076_000.js
43157780abd488e2e3903d8bb9693962d35c7e07e0bebd3c107af5791629f78c
pdf-javascript-stream PDF /JS object 76 at offset 0x369 11502 bytes
Detection
ClamAV: Pdf.Exploit.Agent-36364
Obfuscation or payload: unlikely