Overview

overview

10

Static

static

10

server1.exe

windows10-2004-x64

10

server1.exe

windows11-ltsc_2024-x64

10

Sharing

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General

  • Target
    server1.exe
  • Size 426KB
  • Sample260828-rlht8sygkb
  • SHA256 881c5b9b27bbe515b42dcfae2f460cc6a6b49c4b1103b0e060ea79219d716646
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
sheetratsheet_iwbhpqcmrvsslidhuexecutionpersistenceprivilege_escalationtrojan

Malware Config

Extracted

Family

  • sheetrat

Version

  • 2.6

Campaign

  • Sheet_iwbhpqcmrvsslidhu

C2

  • dasdasdadfs-31563.portmap.host:31563

Targets

    • Target
      server1.exe
    • Size 426KB
    • SHA256 881c5b9b27bbe515b42dcfae2f460cc6a6b49c4b1103b0e060ea79219d716646
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    sheet_iwbhpqcmrvsslidhuexecutionsheetratpersistenceprivilege_escalationtrojan

    • 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#.

      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

    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Tasks