Analysis

  • max time kernel
    149s
  • max time network
    140s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260911-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    02/11/2026, 07:30

General

  • Target
    37ecde70c8ec686529bdba667d9836f4da9979728b52dee1f1a95c5b35aa9b6b.msi
  • Size 11.3MB
  • Sample261102-jbyhya1xf1
  • SHA256 37ecde70c8ec686529bdba667d9836f4da9979728b52dee1f1a95c5b35aa9b6b
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Loads dropped DLL 11 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 Program Files directory 16 IoCs
  • Drops file in Windows directory 11 IoCs
  • Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 3 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 data under HKEY_USERS 3 IoCs
  • Modifies registry class 32 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of WriteProcessMemory 4 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\37ecde70c8ec686529bdba667d9836f4da9979728b52dee1f1a95c5b35aa9b6b.msi
    1⤵
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:3776
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Enumerates connected drives
    • Drops file in Program Files directory
    • 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:1392
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 3E3743E28E92AD74E82169CD660BFC82 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3780
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIDC90.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240704890 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2940
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:4604
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding A064349C82C6D6914ABE17AC54F186E8
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3580
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:1500

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          e591d82.rbs

          • Path C:\Config.Msi\e591d82.rbs
          • Size 10KB
          • SHA256 9cbf029545e7089e5982b20cf37af5af26ff494e504f37bf72addc2e594fc1d4
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSIDC90.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSIDC90.tmp
          • Size 1.0MB
          • SHA256 a5c116a5746888cdd47fae8269e5d5cc1fa51617744c50256619c75e540034e0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIDC90.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIDC90.tmp-\ScreenConnect.Core.dll
          • Size 539KB
          • SHA256 1e9eacd3c680b18f3bfee12a835a49d63fed76056aedb2b2ef312999eb6b4033
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIDC90.tmp-\ScreenConnect.InstallerActions.dll
          • Size 11KB
          • SHA256 af7b515d5ea17e6811f7fd4e0fe76b7bbc6c2ff4e58dc005c86fa30d44f184ca
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIDC90.tmp-\ScreenConnect.Windows.dll
          • Size 1.6MB
          • SHA256 f6e77233f0995581f3171ee92c5cab5b8052d177d333a4999e16e696616739a6
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI1EE9.tmp

          • Path C:\Windows\Installer\MSI1EE9.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          e591d81.msi

          • Path C:\Windows\Installer\e591d81.msi
          • Size 11.3MB
          • SHA256 37ecde70c8ec686529bdba667d9836f4da9979728b52dee1f1a95c5b35aa9b6b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          metadata-2

          • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
          • Size 24.1MB
          • SHA256 1798608b3ba84a1417087a6103992ea52abcd5f67c85bad56a9d10c9e781d93b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          {4b00cd7e-b9d7-40e0-9774-f353b073adb8}_OnDiskSnapshotProp

          • Path \??\Volume{c9561ee0-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{4b00cd7e-b9d7-40e0-9774-f353b073adb8}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 111c726d654c1c38ea4bfc32449157d00ff0f0dc2a01238cf9ed8083cdfe61f4
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/2940-26-0x00000000056E0000-0x000000000576E000-memory.dmp

          memory/2940-31-0x0000000006080000-0x0000000006624000-memory.dmp

          memory/2940-30-0x0000000005920000-0x0000000005ACC000-memory.dmp

          memory/2940-22-0x00000000032C0000-0x00000000032CA000-memory.dmp

          memory/2940-18-0x0000000003290000-0x00000000032BE000-memory.dmp