General

  • Target
    Client.exe
  • Size 603KB
  • Sample260712-nykb2shs2j
  • SHA256 61e49b58e93247422cfa6e7ae6b16fffbe4ae4e8519b90abe549235a36f6244d
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • sheetrat

Version
  • 2.6

Campaign
  • Sheet_tcwjcmmwqyakvk

C2
  • 134.249.168.198:5504

Targets

    • Target
      Client.exe
    • Size 603KB
    • SHA256 61e49b58e93247422cfa6e7ae6b16fffbe4ae4e8519b90abe549235a36f6244d
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Detects Sheetrat obfuscated V1.8 and higher

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

    • Family: Sheetrat, NonEuclid rat

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

    • Modifies WinLogon for persistence

    • Disables Task Manager via registry modification

    • Disables cmd.exe use via registry modification

    • Event Triggered Execution: AppInit DLLs

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Accesses Microsoft Outlook profiles

    • Adds Run key to start application

    • 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