Extracted

• • Target
    Client.exe
  • Size 395KB
  • SHA256 5000df7b494e9d986c3f7d07b9eaf4aa7e3fddb7dcc0ecab8baa97e3cdc2de2f
  • MD5 35be82845e17525b5a4e58530e85c5d2
  • SHA1 c23a8f08f52b019a06bfeaf59024533914ae0066
  • SHA512 bef78b6efd16b2ac08a185ae1522558c1c5af08fc2d880756e4c4f619362a1cb675cd94fc38884273fbe3fe60225b86ee20562bd938adcc3630eb96cb2312c26
  • SSDEEP 6144:OAFyiGHrtKob6KAjeLsMLzz0e6VlWT8b9yaSH3J825MHt6b1+03v:1yDLUobIks4IPVle8EaUK2yUjf
  • TLSH
    T17784C40CFE91F805DE1E3DB7CBE614004B7121C12E2192563559AFFE8BA637658E26BC
  • MD5 SHA1 SHA512 SSDEEP TLSH

  Score

  10^/10

  sheet_vjcpfiyyrnirjobgtwdefense_evasiondiscoveryevasionexecutionsheetratpersistenceprivilege_escalationtrojan

  • Contains code to disable Windows Defender

    A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

  • 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

  • Modifies Windows Defender DisableAntiSpyware settings

    evasiontrojan

  • Modifies Windows Defender Real-time Protection settings

    defense_evasiontrojan

  • Modifies Windows Defender TamperProtection settings

    evasiontrojan

  • UAC bypass

    defense_evasiontrojan

  • Disables Task Manager via registry modification

    defense_evasion

  • Disables cmd.exe use via registry modification

    defense_evasion

  • 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

  • Windows security modification

    defense_evasiontrojan

  • Checks whether UAC is enabled

    defense_evasiontrojan

  • Enumerates connected drives

    Attempts to read the root path of hard drives other than the default C: drive.

  • Looks up external IP address via web service

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

  behavioral1behavioral2