General

  • Target
    LowTunnel.exe
  • Size 614KB
  • Sample260918-hdryhaydqa
  • SHA256 4088035cd9188bc610d89e10fa077b0ae8c58493b8259c9b69089360bc2f4b02
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • sheetrat

Campaign
  • Sheet_tcwjcmmwqyakvk

C2
  • 8lntsdwibh.localto.net:3851

Targets

    • Target
      LowTunnel.exe
    • Size 614KB
    • SHA256 4088035cd9188bc610d89e10fa077b0ae8c58493b8259c9b69089360bc2f4b02
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Detects Sheetrat obfuscated V1.8 and higher

      Sheetrat aka NonEuclid RAT is a trojan written in C#.

    • Detects Sheetrat obfuscated version

    • Family: Sheetrat, NonEuclid rat

      Sheetrat aka NonEuclid RAT is a trojan written in C#.

    • Event Triggered Execution: AppInit DLLs

      Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

    • Contacts third-party web service commonly abused for C2

      Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

MITRE ATT&CK Enterprise v16

Tasks