Analysis

  • user interaction
    yes
  • max time kernel
    149s
  • max time network
    142s
  • platform
    windows10-ltsc_2021_x64
  • resource
    win10ltsc2021-20260911-en
  • resource tags

    arch:x64arch:x86image:win10ltsc2021-20260911-enlocale:en-usos:windows10-ltsc_2021-x64systemwindows
  • submitted
    04/11/2026, 23:55

General

  • Target
    Imageprocessor/BuildStudio.bat
  • Size 1KB
  • Sample261104-3yrtfset3t
  • SHA256 c24889946003338e4eea7d1a04c3799fbe1afa0b2c937a25d77ebd5e4325dccd
  • MD5 SHA1 SHA512 TLSH

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Executes a command shell one-liner 1 TTPs 1 IoCs

    Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

  • Kills process with taskkill 1 IoCs
  • Modifies registry class 32 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\Imageprocessor\BuildStudio.bat"
    1⤵
    • Executes a command shell one-liner
    • Suspicious use of WriteProcessMemory
    PID:4656
    • C:\Windows\system32\taskkill.exe
      taskkill /f /im ImageProcessor.exe
      2⤵
      • Kills process with taskkill
      • Suspicious use of AdjustPrivilegeToken
      PID:1536
    • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe
      "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe" /target:winexe /r:System.Windows.Forms.dll /r:System.Drawing.dll /r:System.dll /out:"C:\Users\Admin\AppData\Local\Temp\Imageprocessor\ImageProcessor.exe" "C:\Users\Admin\AppData\Local\Temp\Imageprocessor\ImageProcessor.cs"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3976
      • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe
        C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RESCCF0.tmp" "c:\Users\Admin\AppData\Local\Temp\Imageprocessor\CSCA7BC31282B4143CBB5539C72BA4624D.TMP"
        3⤵
          PID:1932
      • C:\Users\Admin\AppData\Local\Temp\Imageprocessor\ImageProcessor.exe
        "C:\Users\Admin\AppData\Local\Temp\Imageprocessor\ImageProcessor.exe"
        2⤵
        • Executes dropped EXE
        • Modifies registry class
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of SetWindowsHookEx
        PID:2144

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          ImageProcessor.exe

          • Path C:\Users\Admin\AppData\Local\Temp\Imageprocessor\ImageProcessor.exe
          • Size 8KB
          • SHA256 599a075aa01bca5ac527125d0dc2a9fc39a307ba6c41b28f588ca887aab60590
          • MD5 SHA1 SHA512 SSDEEP TLSH

          RESCCF0.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\RESCCF0.tmp
          • Size 1KB
          • SHA256 fd28b511098a792a353d6652017264e83bc2d8470c89921bf68e8fa92a2e1186
          • MD5 SHA1 SHA512 TLSH

          CSCA7BC31282B4143CBB5539C72BA4624D.TMP

          • Path \??\c:\Users\Admin\AppData\Local\Temp\Imageprocessor\CSCA7BC31282B4143CBB5539C72BA4624D.TMP
          • Size 1KB
          • SHA256 bfbeeec8eb8bcae071db4f15c8babaf8faaf10a21d34b39055c6419fafd50467
          • MD5 SHA1 SHA512 TLSH

          memory/2144-9-0x00000000005B0000-0x00000000005B8000-memory.dmp

          memory/2144-10-0x000000001BCB0000-0x000000001BCC0000-memory.dmp

          memory/2144-11-0x000000001BCB0000-0x000000001BCC0000-memory.dmp

          memory/2144-12-0x000000001BCB0000-0x000000001BCC0000-memory.dmp

          memory/2144-13-0x000000001F950000-0x000000001FAFE000-memory.dmp

          memory/2144-14-0x000000001FB10000-0x000000001FBA5000-memory.dmp

          memory/2144-15-0x000000001BCB0000-0x000000001BCC0000-memory.dmp

          memory/2144-17-0x000000001FB10000-0x000000001FBA5000-memory.dmp

          memory/2144-16-0x000000001F950000-0x000000001FAFE000-memory.dmp