Overview

overview

10

Static

static

10

Client.exe

windows10-2004-x64

10

Client.exe

windows11-ltsc_2024-x64

10

Sharing

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General

  • Target
    Client.exe
  • Size 423KB
  • Sample260628-v63a6aav4y
  • SHA256 f85dfb628ab7fce068d68744a68d058b33f41908a8c6caf5bb6e3382f1dbf210
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
sheetratsheet_lchunwmieuexecutionpersistenceprivilege_escalationtrojan

Malware Config

Extracted

Family

  • sheetrat

Version

  • v1.2

Campaign

  • Sheet_lchunwmieu

Targets

    • Target
      Client.exe
    • Size 423KB
    • SHA256 f85dfb628ab7fce068d68744a68d058b33f41908a8c6caf5bb6e3382f1dbf210
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    sheet_lchunwmieuexecutionsheetratpersistenceprivilege_escalationtrojan

    • 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#.

      trojansheetrat

    • Modifies WinLogon for persistence

      persistence

    • Event Triggered Execution: AppInit DLLs

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

      persistenceprivilege_escalation

    • 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

      persistence
    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Tasks