Analysis

  • max time kernel
    148s
  • max time network
    134s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    18/07/2026, 22:06

General

  • Target
    dvorak-keyboard/dvorak/Dvorak_amd64.msi
  • Size 112KB
  • Sample260718-11ekssd15l
  • SHA256 ca601b31fc0df9e1dc67634e685e85620022373d58f3a8c577d7ea1fe1520869
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Loads dropped DLL 4 IoCs
  • Enumerates connected drives 3 TTPs 46 IoCs

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

  • Drops file in System32 directory 4 IoCs
  • Drops file in Windows directory 14 IoCs
  • Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Checks SCSI registry key(s) 3 TTPs 5 IoCs

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

  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Windows\system32\msiexec.exe
    msiexec.exe /I C:\Users\Admin\AppData\Local\Temp\dvorak-keyboard\dvorak\Dvorak_amd64.msi
    1⤵
    • Enumerates connected drives
    • Drops file in System32 directory
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    PID:4708
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Enumerates connected drives
    • Drops file in System32 directory
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3012
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:5168
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 072EA9515023ED6A992291CF6B8AECC8
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Modifies Internet Explorer settings
        • Suspicious use of SetWindowsHookEx
        PID:5608
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      • Suspicious use of AdjustPrivilegeToken
      PID:4992

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e595858.rbs

          • Path C:\Config.Msi\e595858.rbs
          • Size 11KB
          • SHA256 b8eaeb8d41182d6e003617cceb16dce10f90e999372c821e6bf075e8cf1ae3ac
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI5EB1.tmp

          • Path C:\Windows\Installer\MSI5EB1.tmp
          • Size 55KB
          • SHA256 51ecd80a8d868820fec1e9a939be55723434c3b0f8d54e66bb78512a7298e4c0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Dvorak.dll

          • Path C:\Windows\SysWOW64\Dvorak.dll
          • Size 6KB
          • SHA256 98763086c0fd7e56624e16b372e55c7096e03deb88650bc586cfeefd062c1b6a
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Dvorak.dll

          • Path C:\Windows\system32\Dvorak.dll
          • Size 7KB
          • SHA256 9d31fbd02defd401e5d20c4bb17ab372dfaa2712e00feb5501d822aa8dd232f6
          • MD5 SHA1 SHA512 SSDEEP TLSH

          metadata-2

          • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
          • Size 26.1MB
          • SHA256 b4d6f1314cb70eb417d0aebb120fa42a57be4f3611dde19b7053e24e905a3e7d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          {8bee4bfd-fd3f-4a4e-9baa-0f274813c76f}_OnDiskSnapshotProp

          • Path \??\Volume{c61fbfff-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{8bee4bfd-fd3f-4a4e-9baa-0f274813c76f}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 f14c0ea1c24b16bdce07873a45e1b2dfe5f742d8a2f365579e6fbaef448a203e
          • MD5 SHA1 SHA512 SSDEEP TLSH