Analysis

  • user interaction
    yes
  • max time kernel
    102s
  • max time network
    88s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    07/08/2026, 00:48

General

  • Target
    Installer_3c36ff.msi
  • Size 11.8MB
  • Sample260807-a5s1wavbme
  • SHA256 ee53179ed05384cb254d8156f67b49f20c1ee2a4560103eb426e3ec8e5646302
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Enumerates connected drives 3 TTPs 46 IoCs

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

  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Drops file in Windows directory 8 IoCs
  • Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
  • Checks SCSI registry key(s) 3 TTPs 8 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 15 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 42 IoCs
  • Suspicious use of SendNotifyMessage 39 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\Installer_3c36ff.msi
    1⤵
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:1388
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Enumerates connected drives
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2140
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:892
      • C:\Users\Admin\AppData\Local\Creative\Sound Blaster Connect\prefetch_e37a.exe
        "C:\Users\Admin\AppData\Local\Creative\Sound Blaster Connect\prefetch_e37a.exe" /nologo "C:\Users\Admin\AppData\Local\Creative\Sound Blaster Connect\prefetch_e37a.csproj" /nr:false
        2⤵
        • Executes dropped EXE
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        PID:1872
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      • Suspicious use of AdjustPrivilegeToken
      PID:1836
    • C:\Windows\system32\notepad.exe
      "C:\Windows\system32\notepad.exe"
      1⤵
        PID:4196
      • C:\Windows\system32\taskmgr.exe
        "C:\Windows\system32\taskmgr.exe" /7
        1⤵
        • Checks SCSI registry key(s)
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:3900

      Network

            MITRE ATT&CK Enterprise v16

            Replay Monitor

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            Downloads

            e585e1a.rbs

            • Path C:\Config.Msi\e585e1a.rbs
            • Size 9KB
            • SHA256 137204e18da8de481ce6adb584c5794df561c0ef354367424220c49e85638459
            • MD5 SHA1 SHA512 SSDEEP TLSH

            Lucene.Net.dll

            • Path C:\Users\Admin\AppData\Local\Creative\Sound Blaster Connect\Lucene.Net.dll
            • Size 15.5MB
            • SHA256 4519694e8f463f20bad5fd3741047a832733b509fbb4ab07a28a2f174cf985e1
            • MD5 SHA1 SHA512 SSDEEP TLSH

            prefetch_e37a.csproj

            • Path C:\Users\Admin\AppData\Local\Creative\Sound Blaster Connect\prefetch_e37a.csproj
            • Size 441B
            • SHA256 e1f501be911ae6f5cd97b9b52c976d3335fedaafa34bdd2bc1185ea885e1b1df
            • MD5 SHA1 SHA512 TLSH

            prefetch_e37a.exe

            • Path C:\Users\Admin\AppData\Local\Creative\Sound Blaster Connect\prefetch_e37a.exe
            • Size 246KB
            • SHA256 3d2b22b6bc51e0918263f4420e6bdf7d982d961b54176c470cac11841d1c9b33
            • MD5 SHA1 SHA512 SSDEEP TLSH

            e585e19.msi

            • Path C:\Windows\Installer\e585e19.msi
            • Size 11.8MB
            • SHA256 ee53179ed05384cb254d8156f67b49f20c1ee2a4560103eb426e3ec8e5646302
            • MD5 SHA1 SHA512 SSDEEP TLSH

            metadata-2

            • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
            • Size 24.1MB
            • SHA256 a4d39a38da7f22230099064f81465002b583091a339b05acf9d931e3908d1baa
            • MD5 SHA1 SHA512 SSDEEP TLSH

            {b591ce13-6d5c-48fb-a9bb-aeef1240fe46}_OnDiskSnapshotProp

            • Path \??\Volume{0dfc9b49-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{b591ce13-6d5c-48fb-a9bb-aeef1240fe46}_OnDiskSnapshotProp
            • Size 6KB
            • SHA256 e73c905c77918f499ec1edf22afd2622e3283f5b71b3f417b0e67f2a0784930e
            • MD5 SHA1 SHA512 SSDEEP TLSH

            memory/1872-36-0x0000025AC41A0000-0x0000025AC455A000-memory.dmp

            memory/1872-29-0x0000025AAAEA0000-0x0000025AAAED0000-memory.dmp

            memory/1872-28-0x0000025AC4040000-0x0000025AC419A000-memory.dmp

            memory/1872-27-0x0000025AAACF0000-0x0000025AAAD0A000-memory.dmp

            memory/1872-32-0x0000025AC5130000-0x0000025AC60B4000-memory.dmp

            memory/1872-26-0x0000025AA9140000-0x0000025AA917E000-memory.dmp

            memory/1872-38-0x0000025AC4750000-0x0000025AC47D4000-memory.dmp

            memory/3900-42-0x000002429DA90000-0x000002429DA91000-memory.dmp

            memory/3900-44-0x000002429DA90000-0x000002429DA91000-memory.dmp

            memory/3900-43-0x000002429DA90000-0x000002429DA91000-memory.dmp

            memory/3900-54-0x000002429DA90000-0x000002429DA91000-memory.dmp

            memory/3900-53-0x000002429DA90000-0x000002429DA91000-memory.dmp

            memory/3900-52-0x000002429DA90000-0x000002429DA91000-memory.dmp

            memory/3900-51-0x000002429DA90000-0x000002429DA91000-memory.dmp

            memory/3900-50-0x000002429DA90000-0x000002429DA91000-memory.dmp

            memory/3900-49-0x000002429DA90000-0x000002429DA91000-memory.dmp

            memory/3900-48-0x000002429DA90000-0x000002429DA91000-memory.dmp