Analysis

  • max time kernel
    31s
  • max time network
    36s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    22/05/2026, 16:28

General

  • Target
    Phantom_Stealer_64Bits_Build/Builder.exe
  • Size 389KB
  • Sample260522-ty57eahz3q
  • SHA256 93cf31dc003c0eede920a0fec6d04e119ff5a5a149c9f4d45b19861e40f16fe6
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • sheetrat

Version
  • 1.8

C2
  • perepereshing-30754.portmap.host:30754

Signatures

  • Family: Sheetrat, NonEuclid rat

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

  • Detects Sheetrat obfuscated V1.8 and higher 2 IoCs

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

  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Phantom_Stealer_64Bits_Build\Builder.exe
    "C:\Users\Admin\AppData\Local\Temp\Phantom_Stealer_64Bits_Build\Builder.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:1076
    • C:\Users\Admin\AppData\Local\Temp\Builder.exe
      "C:\Users\Admin\AppData\Local\Temp\Builder.exe"
      2⤵
      • Executes dropped EXE
      PID:892
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\Velocittty.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3856
    • C:\Users\Admin\AppData\Local\Temp\Velocittty.exe
      "C:\Users\Admin\AppData\Local\Temp\Velocittty.exe"
      2⤵
      • Executes dropped EXE
      PID:3592
  • C:\Users\Admin\AppData\Local\Temp\Velocittty.exe
    C:\Users\Admin\AppData\Local\Temp\Velocittty.exe
    1⤵
    • Executes dropped EXE
    PID:1748

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        Velocittty.exe.log

        • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\Velocittty.exe.log
        • Size 443B
        • SHA256 01bcb6c8348b83208a7c923fd840130a0bc7b3a188b62ad8e270a296ed94b724
        • MD5 SHA1 SHA512 TLSH

        Builder.exe

        • Path C:\Users\Admin\AppData\Local\Temp\Builder.exe
        • Size 135KB
        • SHA256 b13e22b03423e3aa0ac2dd0ce8acfefdb5da35b5359c3dacc946049e38928acb
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Velocittty.exe

        • Path C:\Users\Admin\AppData\Local\Temp\Velocittty.exe
        • Size 521KB
        • SHA256 353630c6173781d94ea60ecdc446f10b6e558e8d4a1d11b8fb41bf83690850d0
        • MD5 SHA1 SHA512 SSDEEP TLSH

        __PSScriptPolicyTest_1oijizfl.whc.ps1

        • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_1oijizfl.whc.ps1
        • Size 60B
        • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
        • MD5 SHA1 SHA512 TLSH

        memory/1076-0-0x0000000000610000-0x0000000000678000-memory.dmp

        memory/1076-1-0x00000000025E0000-0x00000000025F0000-memory.dmp

        memory/3592-37-0x0000000000140000-0x00000000001C8000-memory.dmp

        memory/3856-13-0x0000025474940000-0x0000025474950000-memory.dmp

        memory/3856-14-0x0000025474940000-0x0000025474950000-memory.dmp

        memory/3856-15-0x0000025474950000-0x0000025474972000-memory.dmp